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  • What programming Langauge Would you learn to Reengineer USB Devices? [closed]

    - by user70113
    Currently Work in IT support and am retraining in electrical engineering / electronics, I am also interested in Reverse Engineering which language would be best for Hardware RE, I have seen a few sources say C, C++ and Python? I am not familiar with Linux, but installed ubuntu to learn with. I am not a programmer far from it, but I can understand enough basic VB,Java and PHP to edit it for simple things. One of my immediate projects would be to learn to reverse engineer USB devices and write my own low level drivers, I know there are porting kits, but I really want to know it from the ground up. Thanks for any advise folks Most Appreciated.

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  • Problems with input and suspend(separately)

    - by VaultPrisoner
    I'm still very new at Ubuntu/any other linux OS, so this might be an easy fix for most. I installed Ubuntu 14.04 a few days ago, it's dual-booted with Windows 8.1 and I'm using a Toshiba laptop. Whenever I suspend/close my computer, and then open it again, the front LEDs will light up telling me that it's running, but the screen will not do anything. I can hear the fan spinning, but it's almost like the screen doesn't power on like it should. Also, another problem I'm having, is that ~60% of the time, my trackpad and keyboard do not work at all, this starts as soon as Ubuntu boots up. To fix it, I just turn it off and back on until it works. My USB mouse does work no matter what though. Both problems are only present in Ubuntu and not windows 8.1.

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  • Want to back up using dd, but my present ubuntu installation is 149.04 + 3.81(swap) GB, my target drive is only 149.05 GB

    - by Shreshth
    My netbook is a Windows7-Ubuntu 12.04 dual boot. in gparted the strcture looks like Partition filesystem size /dev/sda2 extended 152.86GiB __/dev/sda6 ext4 149.04GiB __/dev/sda5 linux-swap 3.81GiB /dev/sda3 ntfs 100MiB /dev/sda4 ntfs 145.13GiB /dev/sdb1 fat32 149.05GiB I want to backup my ubuntu 12.04 installation that is sda2 (sda6 + sda5) to sdb1. As you can see sda5 +sda6 is 152.86 GB where are sdb1 is only 149.05 GB. Can I backup only sda6(149.04GB) without losing any data? That is to say, will I be able to restore my ubuntu using only sda6 and later add the needed swap? Edit: Made it readable.

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  • Prefer examples over Documentation. Is it a behavioral problem?

    - by user1324816
    Whenever I come across a new api or programming language or even simple Linux MAN pages, I always (ever since I remember) avoided then and instead lazily relied on examples for gaining understanding of new concepts. Subconsciously, I avoid documentation/api whenever it is not straight forward or cryptic or just plain boring. It's been years since I began programming and now I feel like I need to mend my ways as I now realize that I'm causing more damage by refraining from reading cryptic/difficult documentation as it is still a million times better than examples as the official documentation has more coverage than any example out there. So even after realizing that examples should be treated as "added" value instead of the "primary" source for learning. How do I break this bad habit as a programmer or am I over thinking? Any wisdom from fellow programmers is appreciated.

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  • Is there any remote desktop with sound and video capabilities allowing 2 different users work simultaniousely (a local and a remote one)?

    - by psihodelia
    I have a very powerful PC with Intel processor and a small Mac laptop with PowerPC processor. Both computers are with Ubuntu Linux. Mac laptop cannot play flash videos and I cannot install any Intel-CPU program on it (like Skype). So, it means I can install only open source applications on the laptop from Ubuntu repositories. I have two different Ubuntu system users on PC, say ME and SHE (and root as well :) ). If I work as user ME on PC, then user SHE should also be able to access my PC remotely from her laptop and she should see a desktop of user SHE, not my desktop. She also must be able watch videos, flash, and listen sounds. Is it possible with Ubuntu?

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  • Toshiba laptop overheats and switches off

    - by Qazase
    Since upgrading to 11.10 from 11.04 my laptop rapidly heats up and eventually turns off by itself (due to the intense heat I presume). This was not happening whilst running 11.04; I opted then to run gnome rather then unity, not sure if this makes a differences. Was hoping to solve this problem as it worries me that this continues to happen. if anyone can help me, or i need to provide more information on my system please provide step by step instructions on how to do this as I am still a beginner to the linux platform.

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  • Nashorn ?? JDBC ? Oracle DB ?????

    - by Homma
    ???? ????????????Nashorn ?? JavaScript ??????? JDBC ? API ??????Oracle DB ?????????????????????? ?????????????????????JDBC ? API ??????????????? ????????? URL ? https://blogs.oracle.com/nashorn_ja/entry/nashorn_jdbc_1 ??? ???? ???? DB ????Oracle Linux 6.5 ?? Oracle 11.2.0.3.0 ?????????????? JDBC ????????????? DB ????????????????? ???? ?Oracle Database JDBC ???????????????????????Nashorn ?? JavaScript ?????????????????????? JDBC ? Oracle DB ??????? Nashorn ?? JavaScript ??????? JDBC ? Oracle DB ?????? JavaScript ?????? DB ???????????????? JavaScript ?????? oracle ????????? JavaScript ?????? DB ?????????????????????????????????DB ???????????? JavaScript ???????????????????????? oracle ?????????? JDBC ??????????????????????? ???? DB ?????? ?????? DB ???????????? SQL> create user test identified by "test"; SQL> grant connect, resource to test; Java 8 ??????? ???? JDK 8 ?????????????????????????????? 8u5 ???? Java 8 ??????? ???????? JDK ? yum ??????????????? # yum install ./jdk-8u5-linux-x64.rpm JDK ????????????????????? # java -version java version "1.8.0_05" Java(TM) SE Runtime Environment (build 1.8.0_05-b13) Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode) Nashorn ????? oracle ??????????PATH ??????? $ vi ~/.bash_profile PATH=${PATH}:/usr/java/latest/bin export PATH $ . ~/.bash_profile jjs ?????????????????? $ jjs -fv nashorn full version 1.8.0_05-b13 ????????????? JDBC ?????????????? JDBC ?????????JDBC ?????? ??????????????????? ???????? JDBC ????????????????????????? ?????????????? JavaScript ??????????jjs ???????????????????? Nashorn ? JavaScript ?????????????????? JDBC ??????? jjs ????? -cp ?????? JDBC ????? JAR ??????????? $ vi version.js var OracleDataSource = Java.type("oracle.jdbc.pool.OracleDataSource"); var ods = new OracleDataSource(); ods.setURL("jdbc:oracle:thin:test/test@localhost:1521:orcl"); var conn = ods.getConnection(); var meta = conn.getMetaData(); print("JDBC driver version is " + meta.getDriverVersion()); $ jjs -cp ${ORACLE_HOME}/jdbc/lib/ojdbc6.jar version.js JDBC driver version is 11.2.0.3.0 ??????JavaScript ???????? JDBC ?????????? (11.2.0.3.0) ????????? Java.type() ??????? JavaClass ??????? new ????? Java ??????????????????????????? Java ???????????????????? ????????????????????????????????????????????????????? ?????????????????????????????????????? Java ??????????????? JavaScript ???????????????????????????????? ?????? ???????????????? jjs ???????????Nashorn ??????????????jjs ??????????????????????????? $ jjs -cp ${ORACLE_HOME}/jdbc/lib/ojdbc6.jar jjs> var OracleDataSource = Java.type("oracle.jdbc.pool.OracleDataSource"); jjs> var ods = new OracleDataSource(); jjs> ods.setURL("jdbc:oracle:thin:test/test@localhost:1521:orcl"); null jjs> var conn = ods.getConnection(); jjs> var meta = conn.getMetaData(); jjs> print("JDBC driver version is " + meta.getDriverVersion()); JDBC driver version is 11.2.0.3.0 ???????? JDBC ?????????? (11.2.0.3.0) ????????? ?????????????????????????????????????????????????????????JDBC ?????????????????????? ??? Nashorn ???????? JDBC ? API ????????????? API ???????????????? ???????? JavaScript ?????????????????????????????????? ???????????? JDBC ? DB ???????????????? JDBC ??????????????????????????? ???? Oracle Database JDBC?????? 11g????2(11.2) ??????? jjs ?????????? Nashorn User's Guide Java Scripting Programmer's Guide Oracle Nashorn: A Next-Generation JavaScript Engine for the JVM

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  • Oracle 11gR2:????(RAC/Exadata), ??, ????

    - by Yusuke.Yamamoto
    Oracle Database 11g ?????????????(RAC/Exadata)????????????? ???? 2010/11/17:????? 2011/01/07:???????:Exadata/?? 2011/01/18:???????:Exadata/????????????? 2011/04/21:???????:???????????? 2011/04/21:???????:Exadata/??????????????????????????????????? 2011/06/27:??????:Oracle Exadata Database Machine ????1,000??? 2011/07/06:???????:Exadata/????(?????????????????) 2011/07/08:??????:SAP?Oracle Exadata Database Machine??? 2011/07/15:???????:Exadata/????NTT????KDDI????????????? 2011/07/19:???????:Exadata/????(?????????????????) 2011/08/29:???????:Exadata/?????????(?????????) 2011/08/29:???????:Exadata/????? 2011/08/29:???????:Exadata/????(??????????????) 2011/10/27:???????:Exadata/??? 2011/11/08:???????:Exadata/NTT??? 2012/02/16:???????:Exadata/??????????????? 2012/03/21:???????:Exadata/?????????????(?????????????????) 2012/03/22:???????:Exadata/????? ?? Oracle Database 11g R2 ??????? Oracle Database 11g ?????????(????) Oracle Database 11g ?????????(????:Exadata?) ??????? Oracle Database 11g R2(???/????) Oracle Database 11g R2 ??????? ?? ??? 2009?11?11? Oracle Exadata Database Machine Version 2 ???? 2009?11?17? Oracle Database 11g R2 ???? 2010?02?01? ?????????????????????????????? 2010?03?31? SAP ? Oracle Database 11g R2 ??????????ISV????????·??????????? 2010?05?18? Windows Server 2008 R2 / Windows 7 ?????????Oracle Database 10g R2 ??? 2010?06?23? Oracle Application Express 4.0 ???? 2010?07?09? ?? Windows RDBMS ?????(2009?)????????? 2010?08?17? TPC-C Benchmark Price/Performance ???????? 2010?09?13? Patch Set 11.2.0.2 for Linux ???? 2010?10?20? Oracle Exadata Database Machine X2 ???? 2010?11?17? Oracle Database 11g R2 ????1?? 2010?11?19? ?? Windows RDBMS ?????(2010????)????????????? 2011?03?29? Oracle SQL Developer 3.0 ???? 2011?06?27? Oracle Exadata Database Machine ????1,000????????????????·?????????????? 2011?07?08? SAP ? Oracle Exadata Database Machine ??? 2011?09?01? Oracle Database Express Edition 11g Release 2 ???? 2011?09?23? Patch Set 11.2.0.3 for Linux ???? 2011?11?14? Oracle Database Appliance ???? Oracle Database 11g ?????????(????) ????????????????????????????????(????)? ?[RAC]:Oracle Real Application Clusters(RAC) ???????? ????(??????????) [RAC] ??????????(???) ????? [RAC] ????(???) ?????·???????·??? [RAC] ????? ????·??????·?? ???? ???????(??????????????) [RAC]|???99.999%???????500???????????? - ITpro ??????????? [RAC] ????(????) [RAC] ???(???) ????????(???) [RAC] ??????(???????????) [RAC] Oracle Database 11g ?????????(????:Exadata?) ????????????????????????????????(????)? ?Exadata ??????Oracle Database 11g / Oracle Real Application Clusters(RAC) ?? ?()??????????????? KDDI(??????????????) NTT??? NTT???(???????????) ??????????????? ??? ????(??????) ????????????? ?????·???????·??? ??(??????????????) ?????(??????????) ?????????(SCSK) ?????(????????????) ??????????(???????????) ????(???????) ??????? ?????? ????/????·???????? ???????????(???????/NTT??????????) ????? ?????????????(????/????????????) ???? ????????????|?????? ????|?????????????2013?2????3??????????? - ITpro ??? ?????? ??? ?????(SCSK)|DWH?????????????? - IT Leaders ????(???????????)|???????????·??????????????????????? - oracledatabase.jp Customer Voice ????:????IT?????24??365????????????????????? ?Oracle9i Database ?????????????????????Oracle Database 11g ???????????????????????? Oracle9i Database ???????????????? Customer Voice ??????:Oracle Database 11g????????????????????? ?Oracle ASM ???????????????????I/O????????????????????????????????????? ??????? Oracle Database 11g R2(???/????) ???????????????? Oracle 11g R2 ????????? - IT Leaders ??????????11g R2?5???? - ??SE????Oracle??? - Think IT ????????????????????????~Oracle Database 11g Release2 ????????? - oracletech.jp ??????????? Oracle Database 11g Release 2(11gR2)|??????????? Oracle Exadata|??????????? ???????|???????????

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  • Host-only network ?VM??????????

    - by katsumii
    VirtualBox ?????·?????????·???? (Oracle VM VirtualBox??)????VM?????????9??????????????????????????????????????????????????????????????????Oracle Data Guard Basic Hands On Training???????!Oracle Data Guard ??????????????Oracle Enterprise Manager ??? Oracle Database???????????????JRockit Flight Recorder?????RAC ??????????????! Oracle RAC 11g R2 ?????????Oracle Database 11g Release 2??????????????????Oracle GoldenGate???????Oracle Complex Event Processing11g SmartGrid???????? ?????Oracle Complex Event Processing11g CEP?BAM??? EDA????????? ????? ?????VM??????Host-only network?????????????????????????????????????????????????????Bridged???????????IP?????????????????????????????Linux??sshd??????????????????????????????????Windows??????????????????????????????? port forwarding ???????Poderosa ?????????? portforwading ????????????????????? ??????PC?? ssh -p 23 oracle@(VBox???) ??????????   

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  • ???Oracle EBS R12.1.1 Upgrade ?R12.1.2 ??

    - by longchun.zhu
    ??????EBS R12.1.1 ???,????,???????????,???????,?????????, ??????????,????,???? 2 ???,?????,???SR ,?????BUG??? ??: - Oracle Linux 5.2 (x86_64bit) - Oracle EBS R12.1.1 (x86_64bit) upgrade R12.1.2 - DB:11.1.0.7 ??????: ??: - ?Oracle AS 10g ??? - ?Oracle AS 10G for Forms and reports ??? - ???DBA UP2 ???8502056 - ?7303033 US ?? ### ??????,?????. - ?8937577 US ?? - ?7303033 CHS ?? - ?8937577 CHS ?? - ????APPS DBA ???????,autocfg ??appsutil.zip ?? ?????,?????HRMS ???,?????????? ?????1: 2?FORM ????? 2. ????66??????

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  • ???10.2???+ASM???11.2???+ASM(Oracle Restart)

    - by JaneZhang(???)
        ?????????????10.2.0.5?????ASM??????????11.2.0.2???ASM???????(??Oracle Restart).    OS: Linux 5.3    ????:    1.???10.2????????11.2.0.2?OUI,?????“"Upgrade Oracle Grid Infrastructure of Oracle Automatic Storage Management”?????ASM???????,???????????   2. ?11.2.0.2 ????????????ORACLE_HOME?   3. ??DBUA?10.2.0.5???????11.2.0.2.    ?????????:How_to_Upgrade_10.2_Single_ASM_To_11.2_Single_ASM.pdf

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  • ???????????????:????????????

    - by ???02
    ???????????????:??????????????????????????????????????????????????????????ID?????????????Oracle Identity Manager????????????????????Oracle Database Vault???????·?????Oracle Audit Vault????????????????·????????????????????????????????????????????·?????????·?????????????????????????????? ?????????????????????????(????????????????????)???·????????????????????? ???????????????????????????·???????????????????????????????????Oracle Database Vault ~???????????Oracle Database Vault??????????????????????????????(DBA)??????·?????????????????????????????????????????????????????????Oracle Database Vault ~???????????????????????????????????????????????????????????????????????????????????????????????IP????????????????????????????????????????????9:00-17:00?????????????????????????????????????????????????????????????????????????????????????????????????????????????????Oracle Audit Vault ~???????????????????????????????????????·??????????·DBA???????????????????????????????????????????????????????????????????Oracle Audit Vault???Oracle Audit Vault??Oracle Database Vault???????????????????????????????????ID????????????????????????ID????????????????????????????????????????????Oracle Database Standard Edition?Oracle Database Standard Edition One??????????????????Oracle Database Vault???????????Unix?Linux???OS???????????????????????Oracle Database(EE / SE / SE One)??????????????OS??????????????Oracle Identity Manager(???OIM)??????OIM??????????????????????????????ID???????????????ID???·?????????????????ID?????????????????ID????????????????·???????????Oracle Identity Manager ~ID??·????·??????OIM????????????????????(???/???????????)??????????????????????????ID??·? ???·?????????????????????????????????????ID????????????????????????????? ????Oracle Identity Manager ~??·????????????????????ID???????????????????????????????????????OIM?????????????????????????????????????Oracle Identity Manager ~??·??????????????????????1?????????????????????????????????????????????????????????????????Oracle Identity Manager ~????????????????????OIM??ID????????????????????????????????????????????????????????????????? ??40???????????????????????????????????????????????????????????????????? ????????????????????PDF?Office??????????????????????????? Oracle Direct

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  • ????JavaFX??Java???????·?????????????????Java Developer Workshop #2?????|WebLogic Channel|??????

    - by ???02
    WebLogic Server?????????Java???????????????????WebLogic Channel?????????JavaOne 2011??Java/Java EE????????!――???????????????!!?????????????????????JavaOne 2011????????????????????????????????????JavaFX?????2011?12?1?????????????Java?????????????Java Developer Workshop #2????JavaOne 2011?JavaFX???????????????Oracle Corporation?JavaFX??????Nandini Ramani?(Client Java Group???????????)??????JavaFX 2.0-Next generation Java client solution????????????????????JavaFX?????????????????????(???)?Pure Java???????UI??????JavaFX 2.0??JavaOne 2011??Java/Java EE????????!???????????API????Java????????????1?????????Ramani?????????JavaFX????????JavaFX 2.0?????????????????????? ???JavaFX 2.0?????????????????????????????????JavaFX Script??????????????????Java?????????????·???????????????????????Java????????????????????????????? ??????????????PC????????????·??????????????????????????????????????API???????????????????·?????????????????????????????????????????????900????????????Java???????????JavaFX??????????????????????????????·???????(UI)????????????????????(Ramani?) Ramani??????JavaFX 2.0??????/???????????100% Java API?Swing????FXML???UI????????WebKit???Web???????????????????????????? ??????FXML(FX Markup Language)???JavaFX?UI????????XML????????????????Ramani????????????????????????????????·?????????????UI????????????????????????JavaScript?Groovy?Scala???JVM???????????????????????? ???JavaFX 2.0????????(JavaFX Runtime)???????????????????????AWT????????????????OS???????????????Glass Windowing Toolkit??2D/3D????????·???????GPU???????????Prism???????????????? ?????Prism????????????????·??????????3D?????????????????????????????????????????????·????????60fps??HD??????????VP6?MP3?????????????????????????????????????·?????????????? ?????????????????????????JavaFX 2.0???????Ramani???????????????????·????????????·???????????????????????????????JavaFX 2.0?????????????·?????????????????????????????????????Prism???????????????????????????????????????????????????????????????????????JavaFX??????????·??????????????????????????????????????????????/???????????(?????????)???????????????????? ??????????????????NetBeans IDE 7.0?????Eclipse?JDeveloper???????IDE?????????????????????????????&??????????????UI???????JavaFX Scene Builder???????? ?????JavaFX 2.0???????????·???????????????3D????????????·????????????????????????????????????Ramani????JavaFX Labs????????????JavaFX 2.0????????????????????????????3D???????????????????????????????UI?????????????????????????????????????3D???·????????????????? ???JavaFX 2.0?????????????3D?????????·??????·??????????????????????·?????·?????Kinect?????????????????????·?????????????????????·?????·????Kinect????3D?????????????????????????????? ????JavaFX????????????????????????JavaFX????????·?????????Linux?????????PC?iPad???????????????????? ?????????2???????????JavaFX??Java??????????????????GUI?????????????????????????????JavaFX??????????????????????Ramani??????????? ?JavaFX???????????????????????????????·??????????????????Swing?AWT???????????????·????????????????????????????????????? ???JavaFX???????????·???????OpenJFX?????OpenJDK????????????????????????????UI??????????????????Ramani??????????????????????????????????????????????Java???????????????????JavaFX???????????????????????????????????????????:?Java Developer Workshop #2?????Nandini Ramani?????????????????????

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  • Kworker consuming %100 CPU

    - by yusuf
    I have a process, named kworker which is continuously consuming 100% of the CPU's computing capacity. I have tried several possible solutions over a period of 3 months, but to no avail. I even got to upgrade to u + 1 (Ubuntu 12.10 Quantal Quetzal), but my effort was, again, fruitless. I desperately need some help, because, as is, this process is draining my computer's battery so fast, that makes linux usage a disappointing experience. It is noteworthy, that I do not have any such issues when I use windows, which results in twice as much battery life.

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  • ????——???????????

    - by hamsun
    user12619775,2014?8?7? - ??:??????????? ??????????????????????????,???????????????????????????????????????? ???????? Managing Oracle Database on Oracle Solaris 11 Oracle Solaris 11 System Administration for Experienced UNIX/Linux Administrators Oracle Database 12c: RAC Administration Oracle Database 12c: Implement Partitioning Oracle WebCenter Portal 11g for Developers Oracle Hyperion PSPB 11.1.2: Create & Manage Applications (11.1.2.3) R12.x Oracle Financials Accounting Hub Fundamentals Oracle Demantra 7.3.1 Demand Management Fundamentals RPAS Administration and Configuration Fundamentals 14.0 PeopleSoft PeopleTools I Rel 8.53 (Training On Demand) ????education.oracle.com? ???Oracle??????

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  • MPM Prefork Apache Uses Absurd Amount of Memory

    - by Charlie JM
    Help! My apache processes are all using 115MB of memory on startup. Relevant information: Linux version (uname -a) Linux 2.6.31-14-generic-pae #48-Ubuntu SMP Fri Oct 16 15:22:42 UTC 2009 i686 GNU/Linux Apache version (/usr/sbin/apache2 -v) Server version: Apache/2.2.8 (Ubuntu) Server built: Mar 9 2010 20:45:36 Top display (top -u www-data) PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23377 www-data 20 0 115m 94m 3908 S 28 1.6 0:04.59 apache2 23375 www-data 20 0 119m 99m 5892 S 9 1.6 0:05.04 apache2 23324 www-data 20 0 116m 96m 5144 S 2 1.6 0:04.73 apache2 23283 www-data 20 0 115m 95m 4480 S 1 1.6 0:04.89 apache2 23259 www-data 20 0 116m 96m 5380 S 0 1.6 0:05.55 apache2 23370 www-data 20 0 115m 94m 4396 S 0 1.6 0:04.75 apache2 23229 www-data 20 0 116m 96m 6096 S 0 1.6 0:05.43 apache2 ... and so on ... Memory map (pmap $(pidof apache2)) (actually, just one apache2 process) Most of the memory is [anon], see line 5 23324: /usr/sbin/apache2 -k start 08048000 332K r-x-- /usr/sbin/apache2 0809b000 8K rw--- /usr/sbin/apache2 0809d000 12K rw--- [ anon ] 093a0000 92812K rw--- [ anon ] b5b6c000 4K rw--- [ anon ] b5b6d000 512K rw-s- [ shmid=0x13528003 ] b5fa8000 16K r-x-- /lib/tls/i686/cmov/libnss_dns-2.7.so b5fac000 8K rw--- /lib/tls/i686/cmov/libnss_dns-2.7.so b5fae000 120K r-x-- /usr/lib/php5/20060613+lfs/suhosin.so b5fcc000 16K rw--- /usr/lib/php5/20060613+lfs/suhosin.so b5fd0000 4K rw--- [ anon ] b5fd1000 76K r-x-- /usr/lib/php5/20060613+lfs/pdo.so b5fe4000 8K rw--- /usr/lib/php5/20060613+lfs/pdo.so b5fe6000 92K r-x-- /usr/lib/php5/20060613+lfs/mysqli.so b5ffd000 8K rw--- /usr/lib/php5/20060613+lfs/mysqli.so b5fff000 1648K r-x-- /usr/lib/libmysqlclient.so.15.0.0 b619b000 268K rw--- /usr/lib/libmysqlclient.so.15.0.0 b61de000 4K rw--- [ anon ] b61f0000 92K r-x-- /usr/lib/libxcb.so.1.0.0 b6207000 4K rw--- /usr/lib/libxcb.so.1.0.0 b6208000 164K r-x-- /usr/lib/libfontconfig.so.1.3.0 b6231000 4K rw--- /usr/lib/libfontconfig.so.1.3.0 b6232000 124K r-x-- /usr/lib/libjpeg.so.62.0.0 b6251000 4K rw--- /usr/lib/libjpeg.so.62.0.0 b6252000 136K r-x-- /usr/lib/libpng12.so.0.15.0 b6274000 4K rw--- /usr/lib/libpng12.so.0.15.0 b6275000 60K r-x-- /usr/lib/libXpm.so.4.11.0 b6284000 4K rw--- /usr/lib/libXpm.so.4.11.0 b6285000 912K r-x-- /usr/lib/libX11.so.6.2.0 b6369000 12K rw--- /usr/lib/libX11.so.6.2.0 b636c000 424K r-x-- /usr/lib/libfreetype.so.6.3.16 b63d6000 12K rw--- /usr/lib/libfreetype.so.6.3.16 b63d9000 236K r-x-- /usr/lib/libt1.so.5.1.1 b6414000 12K rw--- /usr/lib/libt1.so.5.1.1 b6417000 84K rw--- [ anon ] b642c000 116K r-x-- /usr/lib/libgd.so.2.0.0 b6449000 128K rw--- /usr/lib/libgd.so.2.0.0 b6469000 16K rw--- [ anon ] b646d000 88K r-x-- /usr/lib/php5/20060613+lfs/gd.so b6483000 16K rw--- /usr/lib/php5/20060613+lfs/gd.so b6487000 192K r-x-- /usr/lib/libidn.so.11.5.30 b64b7000 4K rw--- /usr/lib/libidn.so.11.5.30 b64b8000 232K r-x-- /usr/lib/libcurl.so.4.0.1 b64f2000 4K rw--- /usr/lib/libcurl.so.4.0.1 b64f8000 44K r-x-- /usr/lib/php5/20060613+lfs/mysql.so b6503000 4K rw--- /usr/lib/php5/20060613+lfs/mysql.so b6504000 268K r-x-- /usr/lib/libgmp.so.3.4.2 b6547000 4K rw--- /usr/lib/libgmp.so.3.4.2 b6548000 648K r-x-- /usr/lib/libclamav.so.5.0.4 b65ea000 44K rw--- /usr/lib/libclamav.so.5.0.4 b65f8000 52K r-x-- /usr/lib/php5/20060613+lfs/curl.so b6605000 4K rw--- /usr/lib/php5/20060613+lfs/curl.so b6606000 148K r-x-- /usr/lib/libmcrypt.so.4.4.7 b662b000 8K rw--- /usr/lib/libmcrypt.so.4.4.7 b662d000 28K rw--- [ anon ] b6634000 24K r-x-- /usr/lib/php5/20060613+lfs/pdo_mysql.so b663a000 4K rw--- /usr/lib/php5/20060613+lfs/pdo_mysql.so b663b000 16K r-x-- /usr/lib/libXdmcp.so.6.0.0 b663f000 4K rw--- /usr/lib/libXdmcp.so.6.0.0 b6640000 12K r-x-- /usr/lib/php5/20060613+lfs/clamav.so b6643000 4K rw--- /usr/lib/php5/20060613+lfs/clamav.so b6644000 1036K r-x-- /usr/lib/libc-client.so.2007.0 b6747000 28K rw--- /usr/lib/libc-client.so.2007.0 b674e000 4K rw--- [ anon ] b6750000 24K r-x-- /usr/lib/libltdl.so.3.1.6 b6756000 4K rw--- /usr/lib/libltdl.so.3.1.6 b6757000 32K r-x-- /usr/lib/php5/20060613+lfs/mcrypt.so b675f000 4K rw--- /usr/lib/php5/20060613+lfs/mcrypt.so b6760000 88K r-x-- /usr/lib/php5/20060613+lfs/imap.so b6776000 4K rw--- /usr/lib/php5/20060613+lfs/imap.so b6777000 104K r-x-- /usr/local/lib/libssh2.so b6791000 4K rw--- /usr/local/lib/libssh2.so b6792000 1324K r-x-- /usr/lib/ZendOptimizer.so b68dd000 68K rw--- /usr/lib/ZendOptimizer.so b68ee000 20K rw--- [ anon ] b68f3000 8K r-x-- /usr/lib/libXau.so.6.0.0 b68f5000 4K rw--- /usr/lib/libXau.so.6.0.0 b68f6000 52K r-x-- /usr/lib/php5/20060613+lfs/ssh2.so b6903000 4K rw--- /usr/lib/php5/20060613+lfs/ssh2.so b6904000 252K r---- /usr/lib/locale/en_US.utf8/LC_CTYPE b6974000 64K rw-s- /dev/zero (deleted) b6984000 36K r-x-- /lib/tls/i686/cmov/libnss_files-2.7.so b698d000 8K rw--- /lib/tls/i686/cmov/libnss_files-2.7.so b698f000 32K r-x-- /lib/tls/i686/cmov/libnss_nis-2.7.so b6997000 8K rw--- /lib/tls/i686/cmov/libnss_nis-2.7.so b6999000 28K r-x-- /lib/tls/i686/cmov/libnss_compat-2.7.so b69a0000 8K rw--- /lib/tls/i686/cmov/libnss_compat-2.7.so b69a2000 36K r-x-- /lib/libpam.so.0.81.6 b69ab000 4K rw--- /lib/libpam.so.0.81.6 b69ac000 28K r--s- /usr/lib/gconv/gconv-modules.cache b69b3000 8K r-x-- /usr/lib/apache2/modules/mod_userdir.so b69b5000 4K rw--- /usr/lib/apache2/modules/mod_userdir.so b69b6000 148K r-x-- /usr/lib/apache2/modules/mod_ssl.so b69db000 8K rw--- /usr/lib/apache2/modules/mod_ssl.so b69dd000 8K rw--- [ anon ] b69df000 8K r-x-- /usr/lib/apache2/modules/mod_setenvif.so b69e1000 4K rw--- /usr/lib/apache2/modules/mod_setenvif.so b69e2000 1128K r-x-- /usr/lib/libxml2.so.2.6.31 b6afc000 20K rw--- /usr/lib/libxml2.so.2.6.31 b6b01000 4K rw--- [ anon ] b6b02000 80K r-x-- /lib/tls/i686/cmov/libnsl-2.7.so b6b16000 8K rw--- /lib/tls/i686/cmov/libnsl-2.7.so b6b18000 8K rw--- [ anon ] b6b1a000 140K r-x-- /lib/tls/i686/cmov/libm-2.7.so b6b3d000 8K rw--- /lib/tls/i686/cmov/libm-2.7.so b6b3f000 60K r-x-- /lib/libbz2.so.1.0.4 b6b4e000 4K rw--- /lib/libbz2.so.1.0.4 b6b4f000 4K r-x-- /usr/lib/libxcb-xlib.so.0.0.0 b6b50000 4K rw--- /usr/lib/libxcb-xlib.so.0.0.0 b6b51000 56K r-x-- /usr/lib/apache2/modules/mod_rewrite.so b6b5f000 4K rw--- /usr/lib/apache2/modules/mod_rewrite.so b6b60000 5060K r-x-- /usr/lib/apache2/modules/libphp5.so b7051000 208K rw--- /usr/lib/apache2/modules/libphp5.so b7085000 20K rw--- [ anon ] b708a000 28K r-x-- /usr/lib/apache2/modules/mod_negotiation.so b7091000 4K rw--- /usr/lib/apache2/modules/mod_negotiation.so b7092000 12K r-x-- /usr/lib/apache2/modules/mod_mime.so b7095000 4K rw--- /usr/lib/apache2/modules/mod_mime.so b7096000 36K r-x-- /usr/lib/apache2/modules/mod_include.so b709f000 4K rw--- /usr/lib/apache2/modules/mod_include.so b70a0000 4K r-x-- /usr/lib/apache2/modules/mod_env.so b70a1000 4K rw--- /usr/lib/apache2/modules/mod_env.so b70a2000 4K r-x-- /usr/lib/apache2/modules/mod_dir.so b70a3000 4K rw--- /usr/lib/apache2/modules/mod_dir.so b70a4000 20K r-x-- /usr/lib/apache2/modules/mod_cgi.so b70a9000 4K rw--- /usr/lib/apache2/modules/mod_cgi.so b70aa000 28K r-x-- /usr/lib/apache2/modules/mod_autoindex.so b70b1000 4K rw--- /usr/lib/apache2/modules/mod_autoindex.so b70b2000 4K r-x-- /usr/lib/apache2/modules/mod_authz_user.so b70b3000 4K rw--- /usr/lib/apache2/modules/mod_authz_user.so b70b4000 8K r-x-- /usr/lib/apache2/modules/mod_authz_host.so b70b6000 4K rw--- /usr/lib/apache2/modules/mod_authz_host.so b70b7000 8K r-x-- /usr/lib/apache2/modules/mod_authz_groupfile.so b70b9000 4K rw--- /usr/lib/apache2/modules/mod_authz_groupfile.so b70ba000 8K rw--- [ anon ] b70bc000 12K r-x-- /lib/libgpg-error.so.0.3.0 b70bf000 4K rw--- /lib/libgpg-error.so.0.3.0 b70c0000 4K rw--- [ anon ] b70c1000 8K r-x-- /lib/libkeyutils-1.2.so b70c3000 4K rw--- /lib/libkeyutils-1.2.so b70c4000 28K r-x-- /usr/lib/libkrb5support.so.0.1 b70cb000 4K rw--- /usr/lib/libkrb5support.so.0.1 b70cc000 136K r-x-- /usr/lib/libk5crypto.so.3.1 b70ee000 4K rw--- /usr/lib/libk5crypto.so.3.1 b70ef000 300K r-x-- /lib/libgcrypt.so.11.2.3 b713a000 8K rw--- /lib/libgcrypt.so.11.2.3 b713c000 80K r-x-- /usr/lib/libz.so.1.2.3.3 b7150000 4K rw--- /usr/lib/libz.so.1.2.3.3 b7151000 4K rw--- [ anon ] b7152000 60K r-x-- /usr/lib/libtasn1.so.3.0.12 b7161000 4K rw--- /usr/lib/libtasn1.so.3.0.12 b7162000 160K r-x-- /usr/lib/libgssapi_krb5.so.2.2 b718a000 4K rw--- /usr/lib/libgssapi_krb5.so.2.2 b718b000 8K r-x-- /lib/libcom_err.so.2.1 b718d000 4K rw--- /lib/libcom_err.so.2.1 b718e000 556K r-x-- /usr/lib/libkrb5.so.3.3 b7219000 8K rw--- /usr/lib/libkrb5.so.3.3 b721b000 1192K r-x-- /usr/lib/i686/cmov/libcrypto.so.0.9.8 b7345000 84K rw--- /usr/lib/i686/cmov/libcrypto.so.0.9.8 b735a000 16K rw--- [ anon ] b735e000 248K r-x-- /usr/lib/i686/cmov/libssl.so.0.9.8 b739c000 16K rw--- /usr/lib/i686/cmov/libssl.so.0.9.8 b73a0000 452K r-x-- /usr/lib/libgnutls.so.13.9.1 b7411000 20K rw--- /usr/lib/libgnutls.so.13.9.1 b7416000 88K r-x-- /usr/lib/libsasl2.so.2.0.22 b742c000 4K rw--- /usr/lib/libsasl2.so.2.0.22 b742d000 60K r-x-- /lib/tls/i686/cmov/libresolv-2.7.so b743c000 8K rw--- /lib/tls/i686/cmov/libresolv-2.7.so b743e000 8K rw--- [ anon ] b7440000 8K r-x-- /lib/tls/i686/cmov/libdl-2.7.so b7442000 8K rw--- /lib/tls/i686/cmov/libdl-2.7.so b7444000 36K r-x-- /lib/tls/i686/cmov/libcrypt-2.7.so b744d000 8K rw--- /lib/tls/i686/cmov/libcrypt-2.7.so b744f000 160K rw--- [ anon ] b7477000 28K r-x-- /lib/tls/i686/cmov/librt-2.7.so b747e000 8K rw--- /lib/tls/i686/cmov/librt-2.7.so b7480000 12K r-x-- /lib/libuuid.so.1.2 b7483000 4K rw--- /lib/libuuid.so.1.2 b7484000 124K r-x-- /usr/lib/libexpat.so.1.5.2 b74a3000 8K rw--- /usr/lib/libexpat.so.1.5.2 b74a5000 396K r-x-- /usr/lib/libsqlite3.so.0.8.6 b7508000 8K rw--- /usr/lib/libsqlite3.so.0.8.6 b750a000 120K r-x-- /usr/lib/libpq.so.5.1 b7528000 4K rw--- /usr/lib/libpq.so.5.1 b7529000 1172K r-x-- /usr/lib/libdb-4.6.so b764e000 8K rw--- /usr/lib/libdb-4.6.so b7650000 4K rw--- [ anon ] b7651000 48K r-x-- /usr/lib/liblber-2.4.so.2.0.5 b765d000 4K rw--- /usr/lib/liblber-2.4.so.2.0.5 b765e000 244K r-x-- /usr/lib/libldap_r-2.4.so.2.0.5 b769b000 4K rw--- /usr/lib/libldap_r-2.4.so.2.0.5 b769c000 8K rw--- [ anon ] b769e000 1316K r-x-- /lib/tls/i686/cmov/libc-2.7.so b77e7000 4K r---- /lib/tls/i686/cmov/libc-2.7.so b77e8000 8K rw--- /lib/tls/i686/cmov/libc-2.7.so b77ea000 12K rw--- [ anon ] b77ed000 80K r-x-- /lib/tls/i686/cmov/libpthread-2.7.so b7801000 8K rw--- /lib/tls/i686/cmov/libpthread-2.7.so b7803000 8K rw--- [ anon ] b7805000 136K r-x-- /usr/lib/libapr-1.so.0.2.11 b7827000 4K rw--- /usr/lib/libapr-1.so.0.2.11 b7828000 4K rw--- [ anon ] b7829000 100K r-x-- /usr/lib/libaprutil-1.so.0.2.11 b7842000 4K rw--- /usr/lib/libaprutil-1.so.0.2.11 b7843000 152K r-x-- /usr/lib/libpcre.so.3.12.1 b7869000 4K rw--- /usr/lib/libpcre.so.3.12.1 b786a000 4K r-x-- /usr/lib/apache2/modules/mod_authz_default.so b786b000 4K rw--- /usr/lib/apache2/modules/mod_authz_default.so b786c000 4K r-x-- /usr/lib/apache2/modules/mod_authn_file.so b786d000 4K rw--- /usr/lib/apache2/modules/mod_authn_file.so b786e000 24K r-x-- /usr/lib/apache2/modules/mod_auth_digest.so b7874000 4K rw--- /usr/lib/apache2/modules/mod_auth_digest.so b7875000 8K r-x-- /usr/lib/apache2/modules/mod_auth_basic.so b7877000 4K rw--- /usr/lib/apache2/modules/mod_auth_basic.so b7878000 8K r-x-- /usr/lib/apache2/modules/mod_alias.so b787a000 4K rw--- /usr/lib/apache2/modules/mod_alias.so b787b000 8K rw--- [ anon ] b787d000 4K r-x-- [ anon ] b787e000 104K r-x-- /lib/ld-2.7.so b7898000 8K rw--- /lib/ld-2.7.so bfd68000 76K rwx-- [ stack ] bfd7b000 8K rw--- [ anon ] total 119008K I have no idea what's going on. I've tried adjusting the usual parameters (MaxClients, MaxRequestsPerClient, etc, but those don't do anything.) Note, also, that this is memory usage on startup - it doesn't grow, it just starts like this and then stays more or less constant. Ideas?

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  • How to remove the hint in the terminal?

    - by jiangchengwu
    As a normal user , when I run some command like ps\netstat, the terminal hint me: (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) I know could redirect STDERR to /dev/null can remove this hint. But I want to know is there any way to remove it , such as edit some configuration files ? [deploy@storage2 ~]$ ps -V (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) procps version 3.2.7 [deploy@storage2 ~]$ ps -V 2>/dev/null procps version 3.2.7 My OS info: [deploy@storage2 ~]$ uname -a Linux storage2 2.6.18-243.el5 #1 SMP Mon Feb 7 18:47:27 EST 2011 x86_64 x86_64 x86_64 GNU/Linux [deploy@storage2 ~]$ lsb_release LSB Version: :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch [deploy@storage2 ~]$ netstat -V (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) net-tools 1.60 netstat 1.42 (2001-04-15) Fred Baumgarten, Alan Cox, Bernd Eckenfels, Phil Blundell, Tuan Hoang and others +NEW_ADDRT +RTF_IRTT +RTF_REJECT +FW_MASQUERADE +I18N AF: (inet) +UNIX +INET +INET6 +IPX +AX25 +NETROM +X25 +ATALK +ECONET +ROSE HW: +ETHER +ARC +SLIP +PPP +TUNNEL +TR +AX25 +NETROM +X25 +FR +ROSE +ASH +SIT +FDDI +HIPPI +HDLC/LAPB There are more info from strace: [deploy@storage2 ~]$ strace ps -V execve("/bin/ps", ["ps", "-V"], [/* 27 vars */]) = 0 brk(0) = 0x929a000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=99752, ...}) = 0 mmap2(NULL, 99752, PROT_READ, MAP_PRIVATE, 3, 0) = 0xfffffffff7fde000 close(3) = 0 open("/lib/libnsl.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \241\210\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=101404, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7fdd000 mmap2(0x887000, 92104, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x887000 mmap2(0x89a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12) = 0x89a000 mmap2(0x89c000, 6088, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x89c000 close(3) = 0 open("/lib/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0Pzt\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=16428, ...}) = 0 mmap2(0x747000, 12408, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x747000 mmap2(0x749000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0x749000 close(3) = 0 open("/lib/libm.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\20\204p\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=208352, ...}) = 0 mmap2(0x705000, 155760, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x705000 mmap2(0x72a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24) = 0x72a000 close(3) = 0 open("/lib/libcrypt.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\246q\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=45288, ...}) = 0 mmap2(0x71a000, 201020, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xfffffffff7fab000 mmap2(0xf7fb4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0xfffffffff7fb4000 mmap2(0xf7fb6000, 155964, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7fb6000 close(3) = 0 open("/lib/libutil.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \n\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=13420, ...}) = 0 mmap2(NULL, 12428, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xfffffffff7fa7000 mmap2(0xf7fa9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xfffffffff7fa9000 close(3) = 0 open("/lib/libpthread.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@(s\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=129716, ...}) = 0 mmap2(0x72e000, 90596, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x72e000 mmap2(0x741000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13) = 0x741000 mmap2(0x743000, 4580, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x743000 close(3) = 0 open("/lib/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340?]\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1611564, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7fa6000 mmap2(0x5be000, 1328580, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x5be000 mmap2(0x6fd000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13f) = 0x6fd000 mmap2(0x700000, 9668, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x700000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7fa5000 set_thread_area(0xffd61bb4) = 0 mprotect(0x6fd000, 8192, PROT_READ) = 0 mprotect(0x741000, 4096, PROT_READ) = 0 mprotect(0xf7fa9000, 4096, PROT_READ) = 0 mprotect(0xf7fb4000, 4096, PROT_READ) = 0 mprotect(0x72a000, 4096, PROT_READ) = 0 mprotect(0x749000, 4096, PROT_READ) = 0 mprotect(0x89a000, 4096, PROT_READ) = 0 mprotect(0x5ba000, 4096, PROT_READ) = 0 munmap(0xf7fde000, 99752) = 0 set_tid_address(0xf7fa5708) = 20214 set_robust_list(0xf7fa5710, 0xc) = 0 futex(0xffd61f74, FUTEX_WAKE_PRIVATE, 1) = 0 rt_sigaction(SIGRTMIN, {0x4007323d0, [], 0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x10000004007322e0, [], 0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=-4284481536, rlim_max=67108864*1024}) = 0 uname({sys="Linux", node="storage2", ...}) = 0 readlink("/proc/self/exe", "/bin/ps"..., 260) = 7 brk(0) = 0x929a000 brk(0x92bb000) = 0x92bb000 open("/bin/ps", O_RDONLY|O_LARGEFILE) = 3 _llseek(3, -12, [711660], SEEK_END) = 0 read(3, "\274U!\253\2\0\0\0\224\237\t\0", 12) = 12 mmap2(NULL, 634880, PROT_READ, MAP_SHARED, 3, 0x13) = 0xfffffffff7f0a000 mmap2(NULL, 630784, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7e70000 close(3) = 0 futex(0x74a06c, FUTEX_WAKE_PRIVATE, 2147483647) = 0 geteuid32() = 501 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/nsswitch.conf", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=1696, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7ff6000 read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1696 read(3, "", 4096) = 0 close(3) = 0 munmap(0xf7ff6000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=99752, ...}) = 0 mmap2(NULL, 99752, PROT_READ, MAP_PRIVATE, 3, 0) = 0xfffffffff7fde000 close(3) = 0 open("/lib/libnss_files.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300\30\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=46680, ...}) = 0 mmap2(NULL, 41616, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xfffffffff7e65000 mmap2(0xf7e6e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0xfffffffff7e6e000 close(3) = 0 mprotect(0xf7e6e000, 4096, PROT_READ) = 0 munmap(0xf7fde000, 99752) = 0 open("/etc/passwd", O_RDONLY) = 3 fcntl64(3, F_GETFD) = 0 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 fstat64(3, {st_mode=S_IFREG|0644, st_size=2166, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7ff6000 read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2166 close(3) = 0 munmap(0xf7ff6000, 4096) = 0 mkdir("/tmp/pdk-deploy/", 0755) = -1 EEXIST (File exists) mkdir("/tmp/pdk-deploy/fcb734befe617ec3ae1edc38da810a5a", 0755) = -1 EEXIST (File exists) open("/tmp/pdk-deploy/fcb734befe617ec3ae1edc38da810a5a/libperl.so", O_RDONLY|O_LARGEFILE) = 3 close(3) = 0 open("/tmp/pdk-deploy/fcb734befe617ec3ae1edc38da810a5a/libperl.so", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\300!\2\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0664, st_size=1264090, ...}) = 0 mmap2(NULL, 1140104, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xfffffffff7d4e000 mmap2(0xf7e5a000, 45056, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x10b) = 0xfffffffff7e5a000 close(3) = 0 rt_sigaction(SIGFPE, {0x1000000000000001, [], SA_RESTORER|SA_STACK|SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_RESETHAND|SA_SIGINFO|0x3d61cb8, (nil)}, {SIG_DFL, ~[HUP INT ILL ABRT BUS SEGV USR2 PIPE ALRM TERM STOP TSTP TTIN TTOU XCPU WINCH IO PWR SYS RTMIN RT_1 RT_2 RT_4 RT_5 RT_8 RT_9 RT_11 RT_12 RT_13 RT_16 RT_17 RT_18 RT_22 RT_24 RT_25 RT_26 RT_27 RT_28 RT_29 RT_30 RT_31], SA_RESTART|SA_RESETHAND|0x22302d0}, 8) = 0 getuid32() = 501 geteuid32() = 501 getgid32() = 502 getegid32() = 502 open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=56454896, ...}) = 0 mmap2(NULL, 2097152, PROT_READ, MAP_PRIVATE, 3, 0) = 0xfffffffff7b4e000 mmap2(NULL, 241664, PROT_READ, MAP_PRIVATE, 3, 0x13ec) = 0xfffffffff7b13000 mmap2(NULL, 4096, PROT_READ, MAP_PRIVATE, 3, 0x1466) = 0xfffffffff7b12000 close(3) = 0 mmap2(NULL, 135168, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xfffffffff7af1000 time(NULL) = 1348210009 readlink("/proc/self/exe", "/bin/ps"..., 4095) = 7 ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 _llseek(0, 0, 0xffd618d0, SEEK_CUR) = -1 ESPIPE (Illegal seek) ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd618a8) = -1 EINVAL (Invalid argument) _llseek(1, 0, 0xffd618d0, SEEK_CUR) = -1 ESPIPE (Illegal seek) ioctl(2, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd618a8) = -1 EINVAL (Invalid argument) _llseek(2, 0, 0xffd618d0, SEEK_CUR) = -1 ESPIPE (Illegal seek) open("/dev/null", O_RDONLY|O_LARGEFILE) = 3 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd61978) = -1 ENOTTY (Inappropriate ioctl for device) _llseek(3, 0, [0], SEEK_CUR) = 0 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 rt_sigaction(SIGCHLD, NULL, {SIG_DFL, [], SA_RESTART|SA_RESETHAND|0x22302d0}, 8) = 0 brk(0x92dc000) = 0x92dc000 getppid() = 20212 stat64("/opt/ActivePerl-5.8/site/lib/sitecustomize.pl", 0xffd61560) = -1 ENOENT (No such file or directory) close(3) = 0 open("/usr/lib/.khostd/.hostconf", O_RDONLY|O_LARGEFILE) = 3 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd61828) = -1 ENOTTY (Inappropriate ioctl for device) _llseek(3, 0, [0], SEEK_CUR) = 0 fstat64(3, {st_mode=S_IFREG|0644, st_size=334, ...}) = 0 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 read(3, "bindport=9001\ntrustip=221.122.57"..., 4096) = 334 read(3, "", 4096) = 0 close(3) = 0 pipe([3, 4]) = 0 pipe([5, 6]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0) = 20215 close(6) = 0 close(4) = 0 read(5, "", 4) = 0 close(5) = 0 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd61868) = -1 EINVAL (Invalid argument) _llseek(3, 0, 0xffd61890, SEEK_CUR) = -1 ESPIPE (Illegal seek) fstat64(3, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 read(3, (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) "tcp 0 0 0.0.0.0:9001"..., 4096) = 109 read(3, "", 4096) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- fstat64(3, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 close(3) = 0 rt_sigaction(SIGHUP, {0x1, [], SA_STACK|0x129b3d8}, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_RESTART|SA_RESETHAND|0x22302d0}, 8) = 0 rt_sigaction(SIGINT, {0x1, [], SA_STACK|0x129b3d8}, {SIG_DFL, [TRAP BUS FPE USR1 CHLD CONT TTOU VTALRM IO RTMIN], SA_RESTART|SA_RESETHAND|0x22302d0}, 8) = 0 rt_sigaction(SIGQUIT, {0x1, [], 0}, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_RESTART|SA_RESETHAND|0x22302d0}, 8) = 0 waitpid(20215, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 20215 rt_sigaction(SIGHUP, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [TRAP BUS FPE USR1 CHLD CONT TTOU VTALRM IO RTMIN], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 chdir("/usr/lib/.khostd") = 0 pipe([3, 4]) = 0 pipe([5, 6]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0) = 20218 close(6) = 0 close(4) = 0 read(5, "", 4) = 0 close(5) = 0 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd61868) = -1 EINVAL (Invalid argument) _llseek(3, 0, 0xffd61890, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(3, "", 4096) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- close(3) = 0 rt_sigaction(SIGHUP, {0x1, [], SA_RESTORER|SA_STACK|SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_RESETHAND|0x3d61850, (nil)}, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, 8) = 0 rt_sigaction(SIGINT, {0x1, [], SA_STACK|0x129b3d8}, {SIG_DFL, [HUP INT], SA_NOCLDSTOP|SA_NOCLDWAIT}, 8) = 0 rt_sigaction(SIGQUIT, {0x1, [], 0}, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, 8) = 0 waitpid(20218, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 20218 rt_sigaction(SIGHUP, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [HUP INT], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 chdir("/home/deploy") = 0 stat64("/etc/cron.hourly/hichina", {st_mode=S_IFREG|0755, st_size=711660, ...}) = 0 pipe([3, 4]) = 0 pipe([5, 6]) = 0 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0) = 20230 close(6) = 0 close(4) = 0 read(5, "", 4) = 0 close(5) = 0 ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xffd61868) = -1 EINVAL (Invalid argument) _llseek(3, 0, 0xffd61890, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(3, "procps version 3.2.7\n", 4096) = 21 read(3, "", 4096) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- close(3) = 0 rt_sigaction(SIGHUP, {0x1, [], SA_RESTORER|SA_STACK|SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_RESETHAND|0x3d61850, (nil)}, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, 8) = 0 rt_sigaction(SIGINT, {0x1, [], SA_STACK|0x129b3d8}, {SIG_DFL, [HUP INT], SA_NOCLDSTOP|SA_NOCLDWAIT}, 8) = 0 rt_sigaction(SIGQUIT, {0x1, [], 0}, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, 8) = 0 waitpid(20230, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0) = 20230 rt_sigaction(SIGHUP, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [HUP INT], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 rt_sigaction(SIGQUIT, {SIG_DFL, ~[HUP INT ILL TRAP KILL SEGV ALRM TERM STKFLT CHLD TSTP TTOU RT_1 RT_2 RT_3 RT_6 RT_9 RT_11 RT_14 RT_15 RT_16 RT_17 RT_20 RT_22], SA_NOCLDSTOP|SA_NOCLDWAIT}, NULL, 8) = 0 write(1, "procps version 3.2.7\n", 21procps version 3.2.7 ) = 21 munmap(0xf7af1000, 135168) = 0 munmap(0xf7e70000, 630784) = 0 munmap(0xf7f0a000, 634880) = 0 munmap(0xf7d4e000, 1140104) = 0 exit_group(0) = ? [ Process PID=20214 runs in 32 bit mode. ] Thank you very much.

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  • How to install ia32-libs on Wheezy?

    - by javano
    I have seen a couple of questions on ServerFault relating to installing ia32-libs on a 64bit machine but the solutions aren't working for me (I don't think any of these questions where for Wheezy specifically I'm not sure how to proceed); root@server:/home/# apt-get install -f ia32-libs Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-i386 php5 : Depends: libapache2-mod-php5 (>= 5.4.4-14+deb7u2) but it is not going to be installed or libapache2-mod-php5filter (>= 5.4.4-14+deb7u2) but it is not going to be installed or php5-cgi (>= 5.4.4-14+deb7u2) but it is not going to be installed or php5-fpm (>= 5.4.4-14+deb7u2) but it is not going to be installed php5-mysql : Depends: phpapi-20100525 E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. root@server:/home/# sudo apt-get install ia32-libs-i386 Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: ia32-libs-i386:i386 : Depends: freeglut3:i386 (>= 2.6.0-1) but it is not going to be installed Depends: lesstif2:i386 (>= 1:0.95.2-1) but it is not going to be installed Depends: libacl1:i386 (>= 2.2.49-4) but it is not going to be installed Depends: libasyncns0:i386 (>= 0.3-1.1) but it is not going to be installed Depends: libattr1:i386 (>= 1:2.4.44-2) but it is not going to be installed Depends: libaudio2:i386 (>= 1.9.2-4) but it is not going to be installed Depends: libaudiofile1:i386 (>= 0.2.6-8) but it is not going to be installed Depends: libavahi-client3:i386 (>= 0.6.27-2+squeeze1) but it is not going to be installed Depends: libavahi-common3:i386 (>= 0.6.27-2+squeeze1) but it is not going to be installed Depends: libbsd0:i386 (>= 0.2.0-1) but it is not going to be installed Depends: libcap2:i386 (>= 1:2.19-3) but it is not going to be installed Depends: libcomerr2:i386 (>= 1.41.12-4stable1) but it is not going to be installed Depends: libcups2:i386 (>= 1.4.4-7+squeeze1) but it is not going to be installed Depends: libcurl3:i386 (>= 7.21.0-2) but it is not going to be installed Depends: libdbus-1-3:i386 (>= 1.2.24-4+squeeze1) but it is not going to be installed Depends: libdirectfb-1.2-9:i386 (>= 1.2.10.0-4) but it is not going to be installed Depends: libdrm-intel1:i386 (>= 2.4.21-1~squeeze3) but it is not going to be installed Depends: libdrm-radeon1:i386 (>= 2.4.21-1~squeeze3) but it is not going to be installed Depends: libdrm2:i386 (>= 2.4.21-1~squeeze3) but it is not going to be installed Depends: libedit2:i386 (>= 2.11-20080614-2) but it is not going to be installed Depends: libesd0:i386 (>= 0.2.41-8) but it is not going to be installed Depends: libexif12:i386 (>= 0.6.19-1) but it is not going to be installed Depends: libexpat1:i386 (>= 2.0.1-7) but it is not going to be installed Depends: libflac8:i386 (>= 1.2.1-2+b1) but it is not going to be installed Depends: libfltk1.1:i386 (>= 1.1.10-2+b1) but it is not going to be installed Depends: libfontconfig1:i386 (>= 2.8.0-2.1) but it is not going to be installed Depends: libfreetype6:i386 (>= 2.4.2-2.1+squeeze3) but it is not going to be installed Depends: libgcrypt11:i386 (>= 1.4.5-2) but it is not going to be installed Depends: libgdbm3:i386 (>= 1.8.3-9) but it is not going to be installed Depends: libgl1-mesa-dri:i386 (>= 7.7.1-5) but it is not going to be installed Depends: libgl1-mesa-glx:i386 (>= 7.7.1-5) but it is not going to be installed Depends: libglu1-mesa:i386 (>= 7.7.1-5) but it is not going to be installed Depends: libgnutls26:i386 (>= 2.8.6-1) but it is not going to be installed Depends: libgpg-error0:i386 (>= 1.6-1) but it is not going to be installed Depends: libgphoto2-2:i386 (>= 2.4.6-3) but it is not going to be installed Depends: libgphoto2-port0:i386 (>= 2.4.6-3) but it is not going to be installed Depends: libgssapi-krb5-2:i386 (>= 1.8.3+dfsg-4squeeze2) but it is not going to be installed Depends: libice6:i386 (>= 2:1.0.6-2) but it is not going to be installed Depends: libidn11:i386 (>= 1.15-2) but it is not going to be installed Depends: libieee1284-3:i386 (>= 0.2.11-6) but it is not going to be installed Depends: libjack-jackd2-0:i386 (>= 1.9.5~dfsg-14) but it is not going to be installed or libjack0:i386 (>= 1:0.118+svn3796-7) but it is not going to be installed Depends: libjpeg62:i386 (>= 6b1-1) but it is not going to be installed Depends: libjpeg8:i386 (>= 8b-1) but it is not going to be installed Depends: libk5crypto3:i386 (>= 1.8.3+dfsg-4squeeze2) but it is not going to be installed Depends: libkeyutils1:i386 (>= 1.4-1) but it is not going to be installed Depends: libkrb5-3:i386 (>= 1.8.3+dfsg-4squeeze2) but it is not going to be installed Depends: libkrb5support0:i386 (>= 1.8.3+dfsg-4squeeze2) but it is not going to be installed Depends: liblcms1:i386 (>= 1.18.dfsg-1.2+b3) but it is not going to be installed Depends: libltdl7:i386 (>= 2.2.6b-2) but it is not going to be installed Depends: liblzo2-2:i386 (>= 2.03-2) but it is not going to be installed Depends: libmpg123-0:i386 (>= 1.12.1-3) but it is not going to be installed Depends: libnspr4-0d:i386 (>= 4.8.6-1) but it is not going to be installed Depends: libnss3-1d:i386 (>= 3.12.8-1+squeeze4) but it is not going to be installed Depends: libogg0:i386 (>= 1.2.0~dfsg-1) but it is not going to be installed Depends: libopenal1:i386 (>= 1:1.12.854-2) but it is not going to be installed Depends: libpam0g:i386 (>= 1.1.1-6.1+squeeze1) but it is not going to be installed Depends: libpng12-0:i386 (>= 1.2.44-1+squeeze1) but it is not going to be installed Depends: libpopt0:i386 (>= 1.16-1) but it is not going to be installed Depends: libpulse0:i386 (>= 0.9.21-3+squeeze1) but it is not going to be installed Depends: libsamplerate0:i386 (>= 0.1.7-3) but it is not going to be installed Depends: libsane:i386 (>= 1.0.21-9) but it is not going to be installed Depends: libsasl2-2:i386 (>= 2.1.23.dfsg1-7) but it is not going to be installed Depends: libsdl1.2debian:i386 (>= 1.2.15) but it is not going to be installed Depends: libselinux1:i386 (>= 2.0.96-1) but it is not going to be installed Depends: libsigc++-2.0-0c2a:i386 (>= 2.2.4.2-1) but it is not going to be installed Depends: libsm6:i386 (>= 2:1.1.1-1) but it is not going to be installed Depends: libsndfile1:i386 (>= 1.0.21-3+squeeze1) but it is not going to be installed Depends: libsqlite3-0:i386 (>= 3.7.3-1) but it is not going to be installed Depends: libssh2-1:i386 (>= 1.2.6-1) but it is not going to be installed Depends: libssl1.0.0:i386 (>= 1) but it is not going to be installed Depends: libstdc++5:i386 (>= 1:3.3.6-20) but it is not going to be installed Depends: libsvga1:i386 (>= 1:1.4.3-29) but it is not going to be installed Depends: libsysfs2:i386 (>= 2.1.0+repack-1) but it is not going to be installed Depends: libtasn1-3:i386 (>= 2.7-1) but it is not going to be installed Depends: libtdb1:i386 (>= 1.2.1-2+b1) but it is not going to be installed Depends: libtiff4:i386 (>= 3.9.4-5+squeeze3) but it is not going to be installed Depends: libts-0.0-0:i386 (>= 1.0-7) but it is not going to be installed Depends: libusb-0.1-4:i386 (>= 2:0.1.12-16) but it is not going to be installed Depends: libuuid1:i386 (>= 2.17.2-9) but it is not going to be installed Depends: libvorbis0a:i386 (>= 1.3.1-1) but it is not going to be installed Depends: libvorbisenc2:i386 (>= 1.3.1-1) but it is not going to be installed Depends: libvorbisfile3:i386 (>= 1.3.1-1) but it is not going to be installed Depends: libwrap0:i386 (>= 7.6.q-19) but it is not going to be installed Depends: libx11-6:i386 (>= 2:1.3.3-4) but it is not going to be installed Depends: libx86-1:i386 (>= 1.1+ds1-6) but it is not going to be installed Depends: libxau6:i386 (>= 1:1.0.6-1) but it is not going to be installed Depends: libxaw7:i386 (>= 2:1.0.7-1) but it is not going to be installed Depends: libxcb-render-util0:i386 (>= 0.3.6-1) but it is not going to be installed Depends: libxcb-render0:i386 (>= 1.6-1) but it is not going to be installed Depends: libxcb1:i386 (>= 1.6-1) but it is not going to be installed Depends: libxcomposite1:i386 (>= 1:0.4.2-1) but it is not going to be installed Depends: libxcursor1:i386 (>= 1:1.1.10-2) but it is not going to be installed Depends: libxdamage1:i386 (>= 1:1.1.3-1) but it is not going to be installed Depends: libxdmcp6:i386 (>= 1:1.0.3-2) but it is not going to be installed Depends: libxext6:i386 (>= 2:1.1.2-1) but it is not going to be installed Depends: libxfixes3:i386 (>= 1:4.0.5-1) but it is not going to be installed Depends: libxft2:i386 (>= 2.1.14-2) but it is not going to be installed Depends: libxi6:i386 (>= 2:1.3-6) but it is not going to be installed Depends: libxinerama1:i386 (>= 2:1.1-3) but it is not going to be installed Depends: libxml2:i386 (>= 2.7.8.dfsg-2+squeeze1) but it is not going to be installed Depends: libxmu6:i386 (>= 2:1.0.5-2) but it is not going to be installed Depends: libxmuu1:i386 (>= 2:1.0.5-2) but it is not going to be installed Depends: libxp6:i386 (>= 1:1.0.0.xsf1-2) but it is not going to be installed Depends: libxpm4:i386 (>= 1:3.5.8-1) but it is not going to be installed Depends: libxrandr2:i386 (>= 2:1.3.0-3) but it is not going to be installed Depends: libxrender1:i386 (>= 1:0.9.6-1) but it is not going to be installed Depends: libxslt1.1:i386 (>= 1.1.26-6) but it is not going to be installed Depends: libxss1:i386 (>= 1:1.2.0-2) but it is not going to be installed Depends: libxt6:i386 (>= 1:1.0.7-1) but it is not going to be installed Depends: libxtst6:i386 (>= 2:1.1.0-3) but it is not going to be installed Depends: libxv1:i386 (>= 2:1.0.5-1) but it is not going to be installed Depends: libxxf86vm1:i386 (>= 1:1.1.0-2) but it is not going to be installed Depends: odbcinst1debian2:i386 (>= 2.2.14p2-1) but it is not going to be installed Depends: libodbc1:i386 but it is not going to be installed Depends: xaw3dg:i386 (>= 1.5+E-18) but it is not going to be installed php5 : Depends: libapache2-mod-php5 (>= 5.4.4-14+deb7u2) but it is not going to be installed or libapache2-mod-php5filter (>= 5.4.4-14+deb7u2) but it is not going to be installed or php5-cgi (>= 5.4.4-14+deb7u2) but it is not going to be installed or php5-fpm (>= 5.4.4-14+deb7u2) but it is not going to be installed php5-mysql : Depends: phpapi-20100525 E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. root@server:/home/# dpkg --print-architecture amd64 root@server:/home/# dpkg --print-foreign-architectures i386 root@server:/home/# lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 7.1 (wheezy) Release: 7.1 Codename: wheezy root@server:/home/# uname -a Linux servername 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux root@server:/home/# cat /etc/apt/sources.list deb http://ftp.us.debian.org/debian stable main contrib non-free

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  • Using HTML 5 SessionState to save rendered Page Content

    - by Rick Strahl
    HTML 5 SessionState and LocalStorage are very useful and super easy to use to manage client side state. For building rich client side or SPA style applications it's a vital feature to be able to cache user data as well as HTML content in order to swap pages in and out of the browser's DOM. What might not be so obvious is that you can also use the sessionState and localStorage objects even in classic server rendered HTML applications to provide caching features between pages. These APIs have been around for a long time and are supported by most relatively modern browsers and even all the way back to IE8, so you can use them safely in your Web applications. SessionState and LocalStorage are easy The APIs that make up sessionState and localStorage are very simple. Both object feature the same API interface which  is a simple, string based key value store that has getItem, setItem, removeitem, clear and  key methods. The objects are also pseudo array objects and so can be iterated like an array with  a length property and you have array indexers to set and get values with. Basic usage  for storing and retrieval looks like this (using sessionStorage, but the syntax is the same for localStorage - just switch the objects):// set var lastAccess = new Date().getTime(); if (sessionStorage) sessionStorage.setItem("myapp_time", lastAccess.toString()); // retrieve in another page or on a refresh var time = null; if (sessionStorage) time = sessionStorage.getItem("myapp_time"); if (time) time = new Date(time * 1); else time = new Date(); sessionState stores data that is browser session specific and that has a liftetime of the active browser session or window. Shut down the browser or tab and the storage goes away. localStorage uses the same API interface, but the lifetime of the data is permanently stored in the browsers storage area until deleted via code or by clearing out browser cookies (not the cache). Both sessionStorage and localStorage space is limited. The spec is ambiguous about this - supposedly sessionStorage should allow for unlimited size, but it appears that most WebKit browsers support only 2.5mb for either object. This means you have to be careful what you store especially since other applications might be running on the same domain and also use the storage mechanisms. That said 2.5mb worth of character data is quite a bit and would go a long way. The easiest way to get a feel for how sessionState and localStorage work is to look at a simple example. You can go check out the following example online in Plunker: http://plnkr.co/edit/0ICotzkoPjHaWa70GlRZ?p=preview which looks like this: Plunker is an online HTML/JavaScript editor that lets you write and run Javascript code and similar to JsFiddle, but a bit cleaner to work in IMHO (thanks to John Papa for turning me on to it). The sample has two text boxes with counts that update session/local storage every time you click the related button. The counts are 'cached' in Session and Local storage. The point of these examples is that both counters survive full page reloads, and the LocalStorage counter survives a complete browser shutdown and restart. Go ahead and try it out by clicking the Reload button after updating both counters and then shutting down the browser completely and going back to the same URL (with the same browser). What you should see is that reloads leave both counters intact at the counted values, while a browser restart will leave only the local storage counter intact. The code to deal with the SessionStorage (and LocalStorage not shown here) in the example is isolated into a couple of wrapper methods to simplify the code: function getSessionCount() { var count = 0; if (sessionStorage) { var count = sessionStorage.getItem("ss_count"); count = !count ? 0 : count * 1; } $("#txtSession").val(count); return count; } function setSessionCount(count) { if (sessionStorage) sessionStorage.setItem("ss_count", count.toString()); } These two functions essentially load and store a session counter value. The two key methods used here are: sessionStorage.getItem(key); sessionStorage.setItem(key,stringVal); Note that the value given to setItem and return by getItem has to be a string. If you pass another type you get an error. Don't let that limit you though - you can easily enough store JSON data in a variable so it's quite possible to pass complex objects and store them into a single sessionStorage value:var user = { name: "Rick", id="ricks", level=8 } sessionStorage.setItem("app_user",JSON.stringify(user)); to retrieve it:var user = sessionStorage.getItem("app_user"); if (user) user = JSON.parse(user); Simple! If you're using the Chrome Developer Tools (F12) you can also check out the session and local storage state on the Resource tab:   You can also use this tool to refresh or remove entries from storage. What we just looked at is a purely client side implementation where a couple of counters are stored. For rich client centric AJAX applications sessionStorage and localStorage provide a very nice and simple API to store application state while the application is running. But you can also use these storage mechanisms to manage server centric HTML applications when you combine server rendering with some JavaScript to perform client side data caching. You can both store some state information and data on the client (ie. store a JSON object and carry it forth between server rendered HTML requests) or you can use it for good old HTTP based caching where some rendered HTML is saved and then restored later. Let's look at the latter with a real life example. Why do I need Client-side Page Caching for Server Rendered HTML? I don't know about you, but in a lot of my existing server driven applications I have lists that display a fair amount of data. Typically these lists contain links to then drill down into more specific data either for viewing or editing. You can then click on a link and go off to a detail page that provides more concise content. So far so good. But now you're done with the detail page and need to get back to the list, so you click on a 'bread crumbs trail' or an application level 'back to list' button and… …you end up back at the top of the list - the scroll position, the current selection in some cases even filters conditions - all gone with the wind. You've left behind the state of the list and are starting from scratch in your browsing of the list from the top. Not cool! Sound familiar? This a pretty common scenario with server rendered HTML content where it's so common to display lists to drill into, only to lose state in the process of returning back to the original list. Look at just about any traditional forums application, or even StackOverFlow to see what I mean here. Scroll down a bit to look at a post or entry, drill in then use the bread crumbs or tab to go back… In some cases returning to the top of a list is not a big deal. On StackOverFlow that sort of works because content is turning around so quickly you probably want to actually look at the top posts. Not always though - if you're browsing through a list of search topics you're interested in and drill in there's no way back to that position. Essentially anytime you're actively browsing the items in the list, that's when state becomes important and if it's not handled the user experience can be really disrupting. Content Caching If you're building client centric SPA style applications this is a fairly easy to solve problem - you tend to render the list once and then update the page content to overlay the detail content, only hiding the list temporarily until it's used again later. It's relatively easy to accomplish this simply by hiding content on the page and later making it visible again. But if you use server rendered content, hanging on to all the detail like filters, selections and scroll position is not quite as easy. Or is it??? This is where sessionStorage comes in handy. What if we just save the rendered content of a previous page, and then restore it when we return to this page based on a special flag that tells us to use the cached version? Let's see how we can do this. A real World Use Case Recently my local ISP asked me to help out with updating an ancient classifieds application. They had a very busy, local classifieds app that was originally an ASP classic application. The old app was - wait for it: frames based - and even though I lobbied against it, the decision was made to keep the frames based layout to allow rapid browsing of the hundreds of posts that are made on a daily basis. The primary reason they wanted this was precisely for the ability to quickly browse content item by item. While I personally hate working with Frames, I have to admit that the UI actually works well with the frames layout as long as you're running on a large desktop screen. You can check out the frames based desktop site here: http://classifieds.gorge.net/ However when I rebuilt the app I also added a secondary view that doesn't use frames. The main reason for this of course was for mobile displays which work horribly with frames. So there's a somewhat mobile friendly interface to the interface, which ditches the frames and uses some responsive design tweaking for mobile capable operation: http://classifeds.gorge.net/mobile  (or browse the base url with your browser width under 800px)   Here's what the mobile, non-frames view looks like:   As you can see this means that the list of classifieds posts now is a list and there's a separate page for drilling down into the item. And of course… originally we ran into that usability issue I mentioned earlier where the browse, view detail, go back to the list cycle resulted in lost list state. Originally in mobile mode you scrolled through the list, found an item to look at and drilled in to display the item detail. Then you clicked back to the list and BAM - you've lost your place. Because there are so many items added on a daily basis the full list is never fully loaded, but rather there's a "Load Additional Listings"  entry at the button. Not only did we originally lose our place when coming back to the list, but any 'additionally loaded' items are no longer there because the list was now rendering  as if it was the first page hit. The additional listings, and any filters, the selection of an item all were lost. Major Suckage! Using Client SessionStorage to cache Server Rendered Content To work around this problem I decided to cache the rendered page content from the list in SessionStorage. Anytime the list renders or is updated with Load Additional Listings, the page HTML is cached and stored in Session Storage. Any back links from the detail page or the login or write entry forms then point back to the list page with a back=true query string parameter. If the server side sees this parameter it doesn't render the part of the page that is cached. Instead the client side code retrieves the data from the sessionState cache and simply inserts it into the page. It sounds pretty simple, and the overall the process is really easy, but there are a few gotchas that I'll discuss in a minute. But first let's look at the implementation. Let's start with the server side here because that'll give a quick idea of the doc structure. As I mentioned the server renders data from an ASP.NET MVC view. On the list page when returning to the list page from the display page (or a host of other pages) looks like this: https://classifieds.gorge.net/list?back=True The query string value is a flag, that indicates whether the server should render the HTML. Here's what the top level MVC Razor view for the list page looks like:@model MessageListViewModel @{ ViewBag.Title = "Classified Listing"; bool isBack = !string.IsNullOrEmpty(Request.QueryString["back"]); } <form method="post" action="@Url.Action("list")"> <div id="SizingContainer"> @if (!isBack) { @Html.Partial("List_CommandBar_Partial", Model) <div id="PostItemContainer" class="scrollbox" xstyle="-webkit-overflow-scrolling: touch;"> @Html.Partial("List_Items_Partial", Model) @if (Model.RequireLoadEntry) { <div class="postitem loadpostitems" style="padding: 15px;"> <div id="LoadProgress" class="smallprogressright"></div> <div class="control-progress"> Load additional listings... </div> </div> } </div> } </div> </form> As you can see the query string triggers a conditional block that if set is simply not rendered. The content inside of #SizingContainer basically holds  the entire page's HTML sans the headers and scripts, but including the filter options and menu at the top. In this case this makes good sense - in other situations the fact that the menu or filter options might be dynamically updated might make you only cache the list rather than essentially the entire page. In this particular instance all of the content works and produces the proper result as both the list along with any filter conditions in the form inputs are restored. Ok, let's move on to the client. On the client there are two page level functions that deal with saving and restoring state. Like the counter example I showed earlier, I like to wrap the logic to save and restore values from sessionState into a separate function because they are almost always used in several places.page.saveData = function(id) { if (!sessionStorage) return; var data = { id: id, scroll: $("#PostItemContainer").scrollTop(), html: $("#SizingContainer").html() }; sessionStorage.setItem("list_html",JSON.stringify(data)); }; page.restoreData = function() { if (!sessionStorage) return; var data = sessionStorage.getItem("list_html"); if (!data) return null; return JSON.parse(data); }; The data that is saved is an object which contains an ID which is the selected element when the user clicks and a scroll position. These two values are used to reset the scroll position when the data is used from the cache. Finally the html from the #SizingContainer element is stored, which makes for the bulk of the document's HTML. In this application the HTML captured could be a substantial bit of data. If you recall, I mentioned that the server side code renders a small chunk of data initially and then gets more data if the user reads through the first 50 or so items. The rest of the items retrieved can be rather sizable. Other than the JSON deserialization that's Ok. Since I'm using SessionStorage the storage space has no immediate limits. Next is the core logic to handle saving and restoring the page state. At first though this would seem pretty simple, and in some cases it might be, but as the following code demonstrates there are a few gotchas to watch out for. Here's the relevant code I use to save and restore:$( function() { … var isBack = getUrlEncodedKey("back", location.href); if (isBack) { // remove the back key from URL setUrlEncodedKey("back", "", location.href); var data = page.restoreData(); // restore from sessionState if (!data) { // no data - force redisplay of the server side default list window.location = "list"; return; } $("#SizingContainer").html(data.html); var el = $(".postitem[data-id=" + data.id + "]"); $(".postitem").removeClass("highlight"); el.addClass("highlight"); $("#PostItemContainer").scrollTop(data.scroll); setTimeout(function() { el.removeClass("highlight"); }, 2500); } else if (window.noFrames) page.saveData(null); // save when page loads $("#SizingContainer").on("click", ".postitem", function() { var id = $(this).attr("data-id"); if (!id) return true; if (window.noFrames) page.saveData(id); var contentFrame = window.parent.frames["Content"]; if (contentFrame) contentFrame.location.href = "show/" + id; else window.location.href = "show/" + id; return false; }); … The code starts out by checking for the back query string flag which triggers restoring from the client cache. If cached the cached data structure is read from sessionStorage. It's important here to check if data was returned. If the user had back=true on the querystring but there is no cached data, he likely bookmarked this page or otherwise shut down the browser and came back to this URL. In that case the server didn't render any detail and we have no cached data, so all we can do is redirect to the original default list view using window.location. If we continued the page would render no data - so make sure to always check the cache retrieval result. Always! If there is data the it's loaded and the data.html data is restored back into the document by simply injecting the HTML back into the document's #SizingContainer element:$("#SizingContainer").html(data.html); It's that simple and it's quite quick even with a fully loaded list of additional items and on a phone. The actual HTML data is stored to the cache on every page load initially and then again when the user clicks on an element to navigate to a particular listing. The former ensures that the client cache always has something in it, and the latter updates with additional information for the selected element. For the click handling I use a data-id attribute on the list item (.postitem) in the list and retrieve the id from that. That id is then used to navigate to the actual entry as well as storing that Id value in the saved cached data. The id is used to reset the selection by searching for the data-id value in the restored elements. The overall process of this save/restore process is pretty straight forward and it doesn't require a bunch of code, yet it yields a huge improvement in the usability of the site on mobile devices (or anybody who uses the non-frames view). Some things to watch out for As easy as it conceptually seems to simply store and retrieve cached content, you have to be quite aware what type of content you are caching. The code above is all that's specific to cache/restore cycle and it works, but it took a few tweaks to the rest of the script code and server code to make it all work. There were a few gotchas that weren't immediately obvious. Here are a few things to pay attention to: Event Handling Logic Timing of manipulating DOM events Inline Script Code Bookmarking to the Cache Url when no cache exists Do you have inline script code in your HTML? That script code isn't going to run if you restore from cache and simply assign or it may not run at the time you think it would normally in the DOM rendering cycle. JavaScript Event Hookups The biggest issue I ran into with this approach almost immediately is that originally I had various static event handlers hooked up to various UI elements that are now cached. If you have an event handler like:$("#btnSearch").click( function() {…}); that works fine when the page loads with server rendered HTML, but that code breaks when you now load the HTML from cache. Why? Because the elements you're trying to hook those events to may not actually be there - yet. Luckily there's an easy workaround for this by using deferred events. With jQuery you can use the .on() event handler instead:$("#SelectionContainer").on("click","#btnSearch", function() {…}); which monitors a parent element for the events and checks for the inner selector elements to handle events on. This effectively defers to runtime event binding, so as more items are added to the document bindings still work. For any cached content use deferred events. Timing of manipulating DOM Elements Along the same lines make sure that your DOM manipulation code follows the code that loads the cached content into the page so that you don't manipulate DOM elements that don't exist just yet. Ideally you'll want to check for the condition to restore cached content towards the top of your script code, but that can be tricky if you have components or other logic that might not all run in a straight line. Inline Script Code Here's another small problem I ran into: I use a DateTime Picker widget I built a while back that relies on the jQuery date time picker. I also created a helper function that allows keyboard date navigation into it that uses JavaScript logic. Because MVC's limited 'object model' the only way to embed widget content into the page is through inline script. This code broken when I inserted the cached HTML into the page because the script code was not available when the component actually got injected into the page. As the last bullet - it's a matter of timing. There's no good work around for this - in my case I pulled out the jQuery date picker and relied on native <input type="date" /> logic instead - a better choice these days anyway, especially since this view is meant to be primarily to serve mobile devices which actually support date input through the browser (unlike desktop browsers of which only WebKit seems to support it). Bookmarking Cached Urls When you cache HTML content you have to make a decision whether you cache on the client and also not render that same content on the server. In the Classifieds app I didn't render server side content so if the user comes to the page with back=True and there is no cached content I have to a have a Plan B. Typically this happens when somebody ends up bookmarking the back URL. The easiest and safest solution for this scenario is to ALWAYS check the cache result to make sure it exists and if not have a safe URL to go back to - in this case to the plain uncached list URL which amounts to effectively redirecting. This seems really obvious in hindsight, but it's easy to overlook and not see a problem until much later, when it's not obvious at all why the page is not rendering anything. Don't use <body> to replace Content Since we're practically replacing all the HTML in the page it may seem tempting to simply replace the HTML content of the <body> tag. Don't. The body tag usually contains key things that should stay in the page and be there when it loads. Specifically script tags and elements and possibly other embedded content. It's best to create a top level DOM element specifically as a placeholder container for your cached content and wrap just around the actual content you want to replace. In the app above the #SizingContainer is that container. Other Approaches The approach I've used for this application is kind of specific to the existing server rendered application we're running and so it's just one approach you can take with caching. However for server rendered content caching this is a pattern I've used in a few apps to retrofit some client caching into list displays. In this application I took the path of least resistance to the existing server rendering logic. Here are a few other ways that come to mind: Using Partial HTML Rendering via AJAXInstead of rendering the page initially on the server, the page would load empty and the client would render the UI by retrieving the respective HTML and embedding it into the page from a Partial View. This effectively makes the initial rendering and the cached rendering logic identical and removes the server having to decide whether this request needs to be rendered or not (ie. not checking for a back=true switch). All the logic related to caching is made on the client in this case. Using JSON Data and Client RenderingThe hardcore client option is to do the whole UI SPA style and pull data from the server and then use client rendering or databinding to pull the data down and render using templates or client side databinding with knockout/angular et al. As with the Partial Rendering approach the advantage is that there's no difference in the logic between pulling the data from cache or rendering from scratch other than the initial check for the cache request. Of course if the app is a  full on SPA app, then caching may not be required even - the list could just stay in memory and be hidden and reactivated. I'm sure there are a number of other ways this can be handled as well especially using  AJAX. AJAX rendering might simplify the logic, but it also complicates search engine optimization since there's no content loaded initially. So there are always tradeoffs and it's important to look at all angles before deciding on any sort of caching solution in general. State of the Session SessionState and LocalStorage are easy to use in client code and can be integrated even with server centric applications to provide nice caching features of content and data. In this post I've shown a very specific scenario of storing HTML content for the purpose of remembering list view data and state and making the browsing experience for lists a bit more friendly, especially if there's dynamically loaded content involved. If you haven't played with sessionStorage or localStorage I encourage you to give it a try. There's a lot of cool stuff that you can do with this beyond the specific scenario I've covered here… Resources Overview of localStorage (also applies to sessionStorage) Web Storage Compatibility Modernizr Test Suite© Rick Strahl, West Wind Technologies, 2005-2013Posted in JavaScript  HTML5  ASP.NET  MVC   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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