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  • How can I verify the integrity of a WAN connection?

    - by Nic Waller
    We have two scanners in our branch office which upload images to the head office via FTP. In the last week, both scanners have started delivering a lot of corrupted images. I suspect that the problem may be with the WAN link, and that TCP might not be detecting/correcting all errors. Is there any software for Windows that allows me to test the integrity of the connection by sending packets with an embedded CRC?

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  • Can't Mount Databases in the Recovery Storage Group in Exchange 2003

    - by Kyle Brandt
    After restoring some mail stores, mounting them in the recovery storage group errors out. So far a repair with eseutil (which the log says was successful) and a server reboot has been tried. A defrag is currently running on the mail store I need to go through this again to post the exact error codes, so I will be updating this question. But I thought someone who does this a lot might have a "More times than not..." answer in the meantime.

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  • MySQL: how to quote or escape field names?

    - by DrStalker
    Recently I was given a MySQL DB that included a field named time-taken, which caused errors when used in a select because of the minus sign. In this case I was able to rename the field, but for future reference how can field names be quoted or escaped in a MySQL query?

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  • In Linux how do I mount a OS-X partition * by name * that is on the same host?

    - by philcolbourn
    I once used gnome-mount like this gnome-mount -o ro -d /dev/sda2 or gnome-mount -o ro -p "Macintosh HD" But, alas, gnome-mount seems to be no more. RIP. I can do this gvfs-mount -d /dev/sda2 (which generates a whole lot of errors but does mount the partition in the /media directory.) This is a related question: http://superuser.com/questions/131918/gnome-mount-alternative-in-ubuntu-10-04-or-how-to-mount-partition-with-normal-use But how do you do it by name?

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  • Is segfault signal always sent to application

    - by noonex
    My application usually crashes and prints stack to log if received segfault signal. But in some environment the 'dmesg' shows segfault messages related to my application, but application uptime is much older. Can segfault be suppressed and application doesn't receive signal? Or what errors from dmesg can mean ?

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  • unable to install anything on ubuntu 9.10 with aptitude

    - by Srisa
    Hello, Earlier i could install software by using the 'sudo aptitude install ' command. Today when i tried to install rkhunter i am getting errors. It is not just rkhunter, i am not able to install anything. Here is the text output: user@server:~$ sudo aptitude install rkhunter ................ ................ 20% [3 rkhunter 947/271kB 0%] Get:4 http://archive.ubuntu.com karmic/universe unhide 20080519-4 [832kB] 40% [4 unhide 2955/832kB 0%] 100% [Working] Fetched 1394kB in 1s (825kB/s) Preconfiguring packages ... Selecting previously deselected package lsof. (Reading database ... ................ (Reading database ... 95% (Reading database ... 100% (Reading database ... 20076 files and directories currently installed.) Unpacking lsof (from .../lsof_4.81.dfsg.1-1_amd64.deb) ... dpkg: error processing /var/cache/apt/archives/lsof_4.81.dfsg.1-1_amd64.deb (--unpack): unable to create `/usr/bin/lsof.dpkg-new' (while processing `./usr/bin/lsof'): Permission denied dpkg-deb: subprocess paste killed by signal (Broken pipe) Selecting previously deselected package libmd5-perl. Unpacking libmd5-perl (from .../libmd5-perl_2.03-1_all.deb) ... Selecting previously deselected package rkhunter. Unpacking rkhunter (from .../rkhunter_1.3.4-5_all.deb) ... dpkg: error processing /var/cache/apt/archives/rkhunter_1.3.4-5_all.deb (--unpack): unable to create `/usr/bin/rkhunter.dpkg-new' (while processing `./usr/bin/rkhunter'): Permission denied dpkg-deb: subprocess paste killed by signal (Broken pipe) Selecting previously deselected package unhide. Unpacking unhide (from .../unhide_20080519-4_amd64.deb) ... dpkg: error processing /var/cache/apt/archives/unhide_20080519-4_amd64.deb (--unpack): unable to create `/usr/sbin/unhide-posix.dpkg-new' (while processing `./usr/sbin/unhide-posix'): Permission denied dpkg-deb: subprocess paste killed by signal (Broken pipe) Processing triggers for man-db ... Errors were encountered while processing: /var/cache/apt/archives/lsof_4.81.dfsg.1-1_amd64.deb /var/cache/apt/archives/rkhunter_1.3.4-5_all.deb /var/cache/apt/archives/unhide_20080519-4_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: Setting up libmd5-perl (2.03-1) ... Building dependency tree... 0% Building dependency tree... 50% Building dependency tree... 50% Building dependency tree Reading state information... 0% ........... .................... I have removed some lines to reduce the text. All the error messages are in here though. My experience with linux is limited and i am not sure what the problem is or how it is to be resolved. Thanks.

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  • Apache: Rewrite rule to remove slashes from the permalink?

    - by javipas
    I've seen this previous question on ServerFault, and I want something similar, but I'm not sure how to accomplish it. What I want is to remove all slashes from the permalink except for the one that goes after the domain name. For example: http://www.muycomputerpro.com/Actualidad/Especiales/La-Ciudad-Eficiente-Netapp would be redirected to http://www.muycomputerpro.com/ActualidadEspecialesLa-Ciudad-Eficiente-Netapp I need it to correct some 404 errors remaining on my WordPress blog under Apache web server. So, what would be the right rewrite rule?

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  • Drupal on an NFS share has terrible performance

    - by Marcus
    We have a setup where a Drupal 7 site with the following setup - a VMware ESXi 4.1 host server running a web vm and an NFS VM. The web VM is using Apache and mod_php. The site is still in development thus we have to turn off all forms of caching due to the frequently-updated files. Each page request takes around 15-20 seconds to complete. Profiling the PHP code shows that the vast majority of time (normally over 90%) is taking by all the is_dir(), is_file() function calls that load up the modules. I've increased PHP's realpath cache size to several megs and an strace shows that the lstat calls then drop from over 200 to around 6 and stat() decreases a bit (around 600 calls). However, while this has shaved off quite a bit of time, I am simply unable to break past the 10 second per request barrier. Is there a way to get better performance out of this setup that doesn't involve caching? Configs and stats: VMs: web - Centos 6 64bt, 2.5GB RAM, normal CPU/HD prioritisation nfs - Centos 6 64bt, 2GB RAM, normal CPU priority, high HD priority PHP: 32M realpath cache size (it's this high for testing purposes) NFS: ~]# egrep -v '#|^$' /etc/nfsmount.conf [ NFSMount_Global_Options ] Defaultvers=4 Ac=False Rsize=32k Wsize=32k Bsize=32k Reading speeds via NFS are not an issue a dd of a 100M test file using 32k blocks returns: 3200+0 records in 3200+0 records out 104857600 bytes (105 MB) copied, 1.84984 s, 56.7 MB/s real 0m1.857s user 0m0.007s sys 0m0.330s Strace on Apache process with empty realpath cache: % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 50.78 1.157452 337 3434 28 stat 32.58 0.742656 628 1182 425 open 9.29 0.211788 762 278 1 lstat 3.17 0.072322 0 237865 write 2.45 0.055839 490 114 13 access 0.45 0.010262 43 237 brk 0.34 0.007725 10 811 74 read 0.28 0.006340 9 679 fstat 0.22 0.005069 18 281 poll 0.20 0.004533 6 698 getdents 0.09 0.001960 10 190 mmap 0.05 0.001065 14 74 accept4 0.04 0.001000 333 3 chdir 0.03 0.000750 4 190 munmap 0.01 0.000339 0 836 close 0.01 0.000247 3 75 writev 0.00 0.000068 0 611 fcntl 0.00 0.000063 1 77 shutdown 0.00 0.000000 0 1 lseek 0.00 0.000000 0 5 rt_sigaction 0.00 0.000000 0 1 rt_sigprocmask 0.00 0.000000 0 3 setitimer 0.00 0.000000 0 5 socket 0.00 0.000000 0 5 5 connect 0.00 0.000000 0 74 getsockname 0.00 0.000000 0 15 setsockopt 0.00 0.000000 0 5 getcwd 0.00 0.000000 0 1 futex ------ ----------- ----------- --------- --------- ---------------- Strace after realpaths are cached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 60.14 1.371006 484 2831 28 stat 31.79 0.724705 627 1155 425 open 3.53 0.080354 0 237865 write 2.65 0.060433 530 114 13 access 0.43 0.009913 99 100 brk 0.38 0.008730 11 804 74 read 0.35 0.007910 12 675 fstat 0.30 0.006775 10 654 getdents 0.13 0.003065 11 281 poll 0.09 0.002000 333 6 1 lstat 0.07 0.001545 2 807 close 0.05 0.001063 14 74 accept4 0.04 0.001000 6 179 mmap 0.02 0.000404 2 179 munmap 0.01 0.000271 4 75 writev 0.01 0.000212 0 611 fcntl 0.01 0.000129 2 77 shutdown 0.00 0.000022 0 74 getsockname 0.00 0.000000 0 1 lseek 0.00 0.000000 0 5 rt_sigaction 0.00 0.000000 0 1 rt_sigprocmask 0.00 0.000000 0 3 setitimer 0.00 0.000000 0 3 socket 0.00 0.000000 0 3 3 connect 0.00 0.000000 0 15 setsockopt 0.00 0.000000 0 5 getcwd 0.00 0.000000 0 3 chdir ------ ----------- ----------- --------- --------- ---------------- Mount: nfs.xxx.xxx.xxx:/path/to/website/files on /path/to/website/files type nfs (rw,hard,intr,noac,vers=4,addr=xx.xx.xx.xx,clientaddr=xx.xx.xx.xx) Any help is, naturally, appreciated.

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  • Start menu entries suddenly missing

    - by stefan.at.wpf
    I am using Windows 7 x64 SP1 with all updates applied. During the last weeks I observed that some start menu entries / folders suddenly disappeared. Those programs then sometimes can be found using the search function of the start menu, then however they are labeled by the name of their executable (like photoshop instead of Adobe Photoshop). Does anyone know where to start looking for errors? Does the start menu has anything to do with windows search? I doubt it?

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  • Schema changes with replication

    - by Even Mien
    What are the steps to make a schema change to a SQL Server 2005 database using transactional replication? I'm trying to add a database column. I thought if I removed the article for the table, made the schema change, and then added the article for the table back that the schema change would replicate. I am now getting the following error every minute or so: SQL Server errors Replication-Replication Distribution Subsystem: agent [jobname] failed. Invalid column name 'NewColumn'.

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  • win7 64 bit. Fresh install on fresh pc fails with BSOD.

    - by 0plus1
    Hello, I've built a new machine: ASUS M4A785TD-V EVO OCZ DDR3 PC3-12800 (2x 2gb) Amd Athlon II X4 630 Box AM3 I tried memtest with hiren boot cd (tested only 3gb) and showed no error. Then I tried the built in ram test from the win7 cd (2 passes no errors). I also deleted with a 0 pass the hard drive. The error I get is this: 0x0000007e (0xFFFFFFFFFC0000005,0xFFFFF8000C1AB0F3,0xFFFFF880009A8498,0xFFFFF880009A7CF0) Any help is greatly appreciated. Thank you!

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  • Exchange 2010 Internal Auto Discover Migrate away from current .local DNS name

    - by Bryan
    We have an Exchange 2010 Server, running within our Active Directory domain, with an internal hostname of server.example.local. The server is configured for Exchange anywhere, but currently has a self signed certificate with a name of server.example.local installed. Internally, clients connect and work fine, but externally, we are having certificate errors as you would expect. I'm about to purchase a UCC SSL Certificate to install on the server with all the relevant SANs on the certificate to correct this, but due to obvious problem obtaining a trusted cert with .local as a subject alternative name, I'm looking to configure clients on the internal network so that they don't use any reference to the .local hostname. I've configured our external DNS name for the server as exchange.example.com, and have created an CNAME for autodiscover.example.com which also (correctly) points to exchange.example.com. I've also configured internal DNS records for these two hostnames which point to the internal interface of the same server. I don't anticipate any problems here. I'm now trying to reconfigure Auto Discover internally, so that Outlook attempts to connect to exchange.example.com. I've followed the steps in KB940726 to prepare for this, and this appeared to work fine. No errors were generated and I was able to verify the CAS name in AD using ADSI edit. I've just tried testing this with a newly created test user account complete with a new Exchange mailbox, and Outlook 2007 connects fine on the internal network, but looking deeper in the Exchange profile, Outlook is still resolving the server name as server.example.local. Could it be the self signed cert, that is causing Outlook to display the server name as server.example.local, or is there still something wrong with my internal autodiscover configuration? Edit I've proven it isn't the certificate that is responsible for outlook returning server.example.local, by installing another self certified certificate with a name of test.example.com. When creating a new outlook profile, I get the mismatch error I'm expceting, but after accepting the cert, and finishing the config of the Outlook profile, again it still shows server.example.local as the server name. This means that if I were to purchase the UCC cert now, that external client would work fine, but internal clients would show a certificate name mismatch. Any ideas where to start diagnosing this?

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  • TFS2010 Hangs “Waiting for Build Agent”

    - by Qpirate
    I have asked this question over on SO the link to the question is here but i am hoping this is a better place to ask it. I have 3 VM's each running the TFS Build Host Service 1 has 1 controller and 1 agent 2 have 2 Build Agents each. Most of the time (7\10 builds) it comes back with the following error message TF215097: An error occurred while initializing a build for build definition BUILD_DEFINITION: There was no endpoint listening at http://MACHINE1:9191/Build/v3.0/Services/Controller/14 that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. and there is no errors when i do get this message. the following is the config file that i have created <configuration> <appSettings> <add key="traceWriter" value="true"/> </appSettings> <system.diagnostics> <switches> <add name="BuildServiceTraceLevel" value="4"/> <add name="API" value="4"/> <add name="Authentication" value="4"/> <add name="Authorization" value="4"/> <add name="Database" value="4"/> <add name="General" value="4"/> <add name="traceLevel" value="4"/> </switches> <trace autoflush="true" indentsize="4"> <listeners> <add name="myListener" type="Microsoft.TeamFoundation.TeamFoundationTextWriterTraceListener,Microsoft.TeamFoundation.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" initializeData="c:\logs\TFSBuildServiceHost.exe.log" /> <remove name="Default" /> </listeners> </trace> </system.diagnostics> </configuration> I do have my own custom activities in my build process but this does not seem to be a problem as sometimes the build actually does go. I have tried refreshing the template as some sites suggest. Has anyone come across a solution for this problem? or can anyone tell me how to catch these errors when they happen?

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  • Facebook, Twitter, Yahoo doesn't work. CDN problem. Akamai?

    - by Toktik
    Some sites doesn't work normally, they are open, without css, images and javascript errors... Facebook stucks on static.ak.fbcdn.net Twitter stucks on a1.twimg.com Yahoo stucks on l.yimg.com On firefox I'm receiving Waiting for ...(any of those). I can access facebook only with SSL. Like https://facebook.com I ping them, only receive request timed out. Update: When I ping static.ak.fbcdn.net I refer to a749.g.akamai.net, when I ping this server I get Request timed out.

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  • Able to connect to the net, but only through FF with proxies disabled.

    - by Mr Z
    I guess I got a virus or something and it's screwing up my connections. I'm able to browse fine in Firefox with proxies disabled, but other than that I have no connection. Currently, I need to install a program, but it requires an internet connection, and it keeps running into connection errors - same problem the other day when trying to register a product I purchased. I usually can figure this stuff out, but this one has me baffled. Any help troubleshooting this would be much appreciated.

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  • Any option to change Windows XP default Copy Here naming from "Copy of {name}.{ext}" to "{name}.{ext

    - by scunliffe
    Is there an option or tool that will allow me to change the default naming convention for files copied into the same directory in Windows (XP) and above. e.g. from: Copy of {name}.{ext} to: {name}.{ext}.copy Currently: original_file.php Copy of original_file.php Desired: original_file.php original_file.php.copy This would make finding/working with duplicated files much easier (they auto-sort together) and the filetype (by extension) changes thus it can't accidentally "break" something (e.g. if it were a *.java file, upon compiling I would get errors)

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  • Does vertical position affect hard drive?

    - by yoosiba
    Hey. Recently I noticed that for many small PC cases hard drives are installed in vertical position while in midi tower and all bigger they are in horizontal position. What impact on hdd (non SSD, just plain hdd with all mechanical parts inside) has vertical position/ Does it decrease life of hdd? Is it more prone to data errors?

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  • Recognizing Dell EquilLogic with Nagios

    - by user3677595
    EDIT: All firmware and models are compatible, that is why nothing is posted about it. Okay, so there will be a lot here, so please bare with me. I've been working on this now for a few hours (reading manuals and such) so I'm not just coming here right out of the blue. I am working on a PRE-EXISTING Nagios server where there are several other existing plugins and checks running and working. Now I want to add another server there to check so I made the following modifications: First and foremost, I added a file to /usr/local/nagios/libexec named: check_equallogic.sh. The permissions are 755, the same as all others. I have chowned to nagios:nagios and in the listing it shows the Owner as Nagios. I then added a command to the commands.cfg file in \usr\local\nagios\etc\objects that shows the following: # 'check_equallogic' command definition define command{ command_name check_equallogic command_line $USER1$/check_equallogic -H $HOSTADDRESS$ -C $ARG1$ -t $ARG2$ $ARG3$ } Following this, I created a file named equallogic.cfg in the objects directory and it contains (more or less): define host{ use linux-server ; Inherit default values from a template host_name 172.16.50.11 ; The name we're giving to this device alias EqualLogic ; A longer name associated with the device address 172.16.50.11 ; IP address of the device contact_groups admins } Check Equallogic Information define service{ use generic-service host_name 172.16.50.11 service_description General Information check_command check_equallogic!public!info } After ensuring that permissions are okay for all files, I restart the nagios service, no errors. When I go into the WebGUI, I get the following errors AFTER the check runs: (Return code of 127 is out of bounds - plugin may be missing) Extra, probably unrelated problem Furthermore, when I log into the EquilLogic server, under Audit logs I get the following error: Level: AUDIT Time: 26/05/2014 3:59:13 PM Member: ps4100-1 Subsystem: agent Event ID: 22.7.1 SNMP packet validation failed, request received from 172.16.10.11 An snmpwalk receives a timeout, whereas others succeed. I will work on importing the MIBs tomorrow. The reason why I am mentioning it is because I want to make sure that it is only a MIB issue for the SNMP. If it is, then ignore this area. I am entirely unsure of what to do here.

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  • Error starting postgresql server on ubuntu

    - by xain
    Hi, I recently stopped the postgresql database (that was working perfectly), and after a couple of days, when I try to start it, I get the errors: 2011-01-03 23:56:27 CLST LOG: could not translate host name "localhost", service "5432" to address: Name or service not known 2011-01-03 23:56:27 CLST WARNING: could not create listen socket for "localhost" 2011-01-03 23:56:27 CLST FATAL: could not create any TCP/IP sockets I'm running Ubuntu 9.1, and I'm using the usuals /etc/init.d/postgresql-8.4 start and stop Any hints ?

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  • Sql server 2005 sp3 problem with Ghost Cleanup

    - by Carlos Lone
    The Ghost Cleanup process is killing my server. I have tried everything and nothing seems to work: Tried to run dbcc checkdb (didn't get any errors) Tried rebuild indexes tried to restart services and even the server Please any help to show me how can I get rid of this mess... thanks!!!

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  • How to create dynamic volume in stripe configuration, aligned to 1024?

    - by GregC
    I am trying to create a software stripe setup with two physical disks (underneath they are 128K stripe, RAID5 for each). I've read that one can use diskpart, but I am unable to come up with a command that works. This is on Server 2k3 SP2. I was trying create volume stripe disk=2,3 align=1024 Diskpart errors out: The arguments you specified for this command are not valid. P.S. Tried successfully with a basic disk and a primary partition. Please reply, -Greg

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  • File Locked on Flash Drive

    - by AtomFury
    I'm completely frustrated. I'm an owner of a OCZ 8GB Rally2 which I've used flawlessly for about 4 months now, and all of a sudden this week I begin getting errors telling me that I can't delete a file due to "make sure the disk is not write-protected, full or and the file is not in-use" dialog. Here's what I've tried: Deleting the file using FileASSASSIN (it's worked on everything else but files on this darn flash drive) Formatting the flash drive and then restoring the backed up information (I format to NTFS, FYI) Any suggestions on what to do?

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  • Excel VBA (2007) Subtotal method of Range class failed

    - by robihot
    I'm getting a Subtotal method of Range class failed Error when I try to run a macro in Excel 2007. Code works GREAT (no errors) when I run it using Excel 2003. Here's a snippet... 'SubTotal Sheet Range("A1").Select Selection.Subtotal GroupBy:=1, Function:=xlSum, TotalList:=Array(3, 4, 5, 6, 7, _ 8, 9), Replace:=True, PageBreaks:=False, SummaryBelowData:=True Any help would be appreciated.

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