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• Apache Won't Restart After Compiling PHP with Postgres

  - by gonzofish

  I've compiled PHP (v5.3.1) with Postgres using the following configure: ./configure \ --build=x86_64-redhat-linux-gnu \ --host=x86_64-redhat-linux-gnu \ --target=x86_64-redhat-linux-gnu \ --program-prefix= \ --prefix=/usr/ \ --exec-prefix=/usr/ \ --bindir=/usr/bin/ \ --sbindir=/usr/sbin/ \ --sysconfdir=/etc \ --datadir=/usr/share \ --includedir=/usr/include/ \ --libdir=/usr/lib64 \ --libexecdir=/usr/libexec \ --localstatedir=/var \ --sharedstatedir=/usr/com \ --mandir=/usr/share/man \ --infodir=/usr/share/info \ --cache-file=../config.cache \ --with-libdir=lib64 \ --with-config-file-path=/etc \ --with-config-file-scan-dir=/etc/php.d \ --with-pic \ --disable-rpath \ --with-pear \ --with-pic \ --with-bz2 \ --with-exec-dir=/usr/bin \ --with-freetype-dir=/usr \ --with-png-dir=/usr \ --with-xpm-dir=/usr \ --enable-gd-native-ttf \ --with-t1lib=/usr \ --without-gdbm \ --with-gettext \ --without-gmp \ --with-iconv \ --with-jpeg-dir=/usr \ --with-openssl \ --with-zlib \ --with-layout=GNU \ --enable-exif \ --enable-ftp \ --enable-magic-quotes \ --enable-sockets \ --enable-sysvsem \ --enable-sysvshm \ --enable-sysvmsg \ --with-kerberos \ --enable-ucd-snmp-hack \ --enable-shmop \ --enable-calendar \ --with-libxml-dir=/usr \ --enable-xml \ --with-system-tzdata \ --with-mime-magic=/usr/share/file/magic \ --with-apxs2=/usr/sbin/apxs \ --with-mysql=/usr/include/mysql \ --without-gd \ --with-dom=/usr/include/libxml2/libxml \ --disable-dba \ --without-unixODBC \ --disable-pdo \ --enable-xmlreader \ --enable-xmlwriter \ --without-sqlite \ --without-sqlite3 \ --disable-phar \ --enable-fileinfo \ --enable-json \ --without-pspell \ --disable-wddx \ --with-curl=/usr/include/curl \ --enable-posix \ --with-mcrypt \ --enable-mbstring \ --with-pgsql=/mnt/mv/pgsql I'm using Postgres 8.4.0 and Apache 2.2.8; I have the following line in my Apache conf file: LoadModule php5_module /usr/lib64/httpd/modules/libphp5.so And when I attempt to restart Apache, I get the following error message: Starting httpd: httpd: Syntax error on line 205 of /etc/httpd/conf/httpd.conf: Cannot load /usr/lib64/httpd/modules/libphp5.so into server: /usr/lib64/httpd/modules/libphp5.so: undefined symbol: lo_import_with_oid Now, I know that this is a problem with Postgres with PHP because lo_import_with_oid is a function in the Postgres source which allows the importing of large objects; also, if I remove the --with-pgsql option, PHP and Apache get along great. I've scoured the Internet looking for answers all day, but to no avail. Does anyone have ANY insight into what is causing my problems.

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• snort with barnyard2 not working on Fedora 12

  - by aHunter

  Has anyone come across this error with barnyard2 and snort? --== Initializing Barnyard2 ==-- Initializing Input Plugins! Initializing Output Plugins! Parsing config file "/etc/snort/barnyard2.conf" Log directory = /var/log/barnyard2 database: compiled support for (mysql) database: configured to use mysql database: schema version = 107 database: host = localhost database: user = test database: database name = snort database: sensor name = localhost:eth0 database: sensor id = 1 database: data encoding = hex database: detail level = full database: ignore_bpf = no database: using the "log" facility --== Initialization Complete ==-- ______ -*> Barnyard2 <*- / ,,_ \ Version 2.1.8 (Build 251) |o" )~| By the SecurixLive.com Team: http://www.securixlive.com/about.php + '''' + (C) Copyright 2008-2010 SecurixLive. Snort by Martin Roesch & The Snort Team: http://www.snort.org/team.html (C) Copyright 1998-2007 Sourcefire Inc., et al. WARNING: Ignoring corrupt/truncated waldofile '/var/log/snort/barnyard.waldo' Opened spool file '/var/log/snort/snort.log.1282004944' ERROR: Unknown record type read: 104 Fatal Error, Quitting.. Snort seems to be working correctly as I have managed to get logs via syslog but when I try to use the barnyard config via Unified2 it is not working. Presumably because of the above error. Thanks in advance.

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• Apache HTTPD - Segmentation fault when loading mod_jk module

  - by hansengel

  I just set up mod_jk with my Apache httpd 2.0.52 installation, but now when I try to start Apache, it has a segmentation fault. I've checked that I am using the mod_jk compiled for 2.0.x.. built against the same version I have, in fact. I've also verified that the path I'm giving to LoadModule is correct, and the permissions and the ownership of the file are the same as the rest of the modules'. When I remove the "LoadModule" command for mod_jk from my httpd.conf, there is no segmentation fault. Nothing shows in Apache's error logs. I have tried restarting the server with this module using both service httpd restart and httpd. These are the last few lines returned of strace httpd -X: gettimeofday({1292100295, 434487}, NULL) = 0 socket(PF_INET6, SOCK_STREAM, IPPROTO_IP) = -1 EAFNOSUPPORT (Address family not supported by protocol) socket(PF_NETLINK, SOCK_RAW, 0) = 3 bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0 getsockname(3, {sa_family=AF_NETLINK, pid=22378, groups=00000000}, [12]) = 0 time(NULL) = 1292100295 sendto(3, "\24\0\0\0\26\0\1\3\307\342\3M\0\0\0\0\0\305\333\267", 20, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20 recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"<\0\0\0\24\0\2\0\307\342\3MjW\0\0\2\10\200\376\1\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 664 recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3\0\2\0\307\342\3MjW\0\0\0\0\0\0\1\0\0\0\10\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20 close(3) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3 --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ Process 22378 detached Has anyone had a similar problem using Apache 2.0.52 with mod_jk? I might try downloading and building the source for the Apache server and mod_jk myself if there isn't a discovered fix for this.

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• Occasional "Could not load file or assembly" in asmx WebService on IIS and DFS

  - by jesse-mcdowell

  We have a handfull of ASMX web service hosted on two identical Windows Server 2003 boxes. The virtual directory for the web services is loaded in a DFS share, both servers point to the same share. We have a load balancer between the internet and the two web servers. At a seemingly random interval (right now about twice per week) when a user tries to access a method on the web service, IIS returns the error: "Could not load file or assembly" for one of the assemblies used in the method call, and will continue reporting it each time the method is called until the app pool is recycled. We haven't found any distinguishable pattern to the problem. This is what I know: the missing assembly varies (but it's always a home-brew assembly) the Web Service method that fails varies there is no noticeable pattern to the times or intervals where the problem appears there are no admin users accessing the servers when the problem appears the failing method will work correctly on one server and fail on the other, even though both point to the same bin folder the problem can always be corrected by recycling the app pool and making no other changes I have enabled the Assembly Binder Log, and know that the binder is looking in the correct location for the file. Our assemblies are compiled for .Net 3.5.

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• apache pointing to the wrong version of python on ubuntu how do I change?

  - by one

  I am setting up a flask application on and Ubuntu 12.04.3 LTS EC2 instance and everything seemed to be working well (i.e. I could get to the webpage via the publicly available url) until I tried to import a module (e.g. numpy) and realised the apache python differs from the one I used to compile the mod_wsgi and also the one I am using I am running apache2. The apache2 logs show the warnings (specifically the last line shows the path hasnt changed): [warn] mod_wsgi: Compiled for Python/2.7.5. [warn] mod_wsgi: Runtime using Python/2.7.3. [warn] mod_wsgi: Python module path '/usr/lib/python2.7/:/usr/lib/python2.7/plat-linux2:/usr/lib/python2.7/lib-tk:/usr/lib$ I have tried to set the path in my virtual host conf (my python is located in /home/ubuntu/anaconda/bin along with all of the other libraries): WSGIPythonHome /home/ubuntu/anaconda WSGIPythonPath /home/ubuntu/anaconda <VirtualHost *:80> ServerName xx-xx-xxx-xxx-xxx.compute-1.amazonaws.com ServerAdmin [email protected] WSGIScriptAlias / /var/www/microblog/microblog.wsgi <Directory /var/www/microblog/app/> Order allow,deny Allow from all </Directory> Alias /static /var/www/microblog/app/static <Directory /var/www/FlaskApp/FlaskApp/static/> Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> But I still get the warnings and the apache python path hasnt changed - where do I need to put the relevant directives to point apache at my python version and modules (e.g. scipy, numpy etc)? Separately, could I have avoided this using virtual environments? Thanks in advance.

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• Stream video file in debian?

  - by Rob

  I've tried ffserver with ffmpeg, I've tried VLC, and I'm not sure what else to try or what I've done wrong. I've gone through, with VLC +-[ robert@s10 ]--[ ~ ] +[#!]¬ vlc --version VLC media player 2.0.0 Twoflower (revision 2.0.0-0-g421a4fc) VLC version 2.0.0 Twoflower (2.0.0-0-g421a4fc) Compiled by buildd on biber.debian.org (Mar 1 2012 22:21:37) Compiler: gcc version 4.6.2 (Debian 4.6.2-14) This program comes with NO WARRANTY, to the extent permitted by law. You may redistribute it under the terms of the GNU General Public License; see the file named COPYING for details. Written by the VideoLAN team; see the AUTHORS file. and tried everything I could in the streaming section, but I can't get the stream to actually work. Looking around, apparently debian strips the encoders from the package? I want to do share some videos I've made with friends on IRC, and it would be easiest if I could just stream it so we can all watch at the same time and critique parts of it in real time. Has anyone done something similar? Linux s10 3.2.0-2-686-pae #1 SMP Tue Mar 20 19:48:26 UTC 2012 i686 GNU/Linux Basic home network, I am behind a NAT (192.168.1.*) and have dynamic DNS set up. That doesn't really matter too much, I can figure that out, but it's not even working locally. I have a file server set up and could just share the files that way, but I'd rather have everyone watching at the same time (or just about). Not worried about installing new packages or building something from source, that's not a big issue, just want to get it working. Big plus if I can do it from command line.

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• Problem with wireless networking

  - by Rodnower

  Hello, I have atheros wifi hardware, intell chipset, gigabyte laptop and CentOS 5 installed. Now I try to use wireless network and get problems. First of all I want to say that I have 2 OS on my laptop, and when I load Windows XP I still may to access to the wireless network. First I try to get it on Linux was to make active wlan0 interface in: system - administration - network but I get: Determining IP information for wlan0... failed. Second I try also was unsuccessfully: [root 1 network-scripts]# ifup-wireless Error : unrecognised wireless request "off" This relevant output of iwconfig is: Warning: Driver for device wlan0 recommend version 21 of Wireless Extension, but has been compiled with version 20, therefore some driver features may not be available... wlan0 IEEE 802.11 ESSID:"" Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated Tx-Power=27 dBm Retry min limit:7 RTS thr:off Fragment thr=2352 B Encryption key:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 {output not in the original format} The same things are happen even if I do: modprobe wlan0 (this not get error) Important to say that modprobe not succeed to find ath_pci, tharefor I decide to download latest version of the madwifi driver from http://madwifi-project.org. I extracted this, but when I make this, this is what I get: [root 1 madwifi-0.9.4]# make /bin/sh: line 0: cd: /lib/modules/2.6.18-164.el5/build: No such file or directory Makefile.inc:66: * /lib/modules/2.6.18-164.el5/build is missing, please set KERNELPATH. Stop. I tried to set KERNELPATH, but I think that it was incorrect: [root 1 madwifi-0.9.4]# make KERNELPATH=/lib/modules/2.6.18-164.el5/kernel/ /bin/sh: cc: command not found Makefile.inc:81: * Cannot detect kernel version - please check compiler and KERNELPATH. Stop. Some one have any ideas? Thank you very much for ahead.

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• Apache2 MPM-prefork MPM-worker multiple instances on same Ubuntu host machine possible?

  - by user60985

  I have a live Apache2/MPM-Worker instance running Django. I want to also run an Apache2/MPM-prefork instance to run some Drupal6 applications on the same host machine and utilize a vast selection of PHP modules that run on the prefork model. I plan to use my MPM-worker instance to reverse proxy to the Apache2-prefork instance for URLS starting with myhost.com/drupal6/. It seems theoretically doable/configurable by having the second Apache2-prefork instance configured to listen on an internal port, say 127.0.0.1:8080 and having my current Apache2-worker configured to proxy pass and reverse pass to it for the 'drupal6' URLs. However, how do I compile or install the apache2-prefork version so it has a different executable name than /usr/sbin/apache2, for example /usr/sbin/apache2p, and so apache2ctl has a different name, say apache2pctl, and that apache2pctl invokes the /usr/sbin/apache2p instead of /usr/sbin/apache2... and so on down the line (eg /etc/apache2p) so I can start and restart my two instances independently? As I understand it, no one executable of 'apache2' can be compiled with both the MPM-prefork and MPM-worker modules, so it seems I need two separate versions of the apache2 MPM flavors. But then I need to invoke and control them by separate names, I assume. I looked at the configuration options for apache2 and I am a bit queasy about compiling a second apache2 version with prefork because I am not sure I can set all the options so that none of my current apache2 files is overwritten. Is there a way? Is there a standard solution to separately installing and controlling prefork and worker apache2 executables on the same machine without them stepping on each other during installation or operation?

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• Generic RPM package for Python 2.x

  - by RaphDG

  I have a python application, it can run on Python = 2.6 and it's architecture independant. I need the rpm package of this application to be installed on Fedora 14 (python 2.7) and Centos 6.2 (python 2.6). I currently use mock to build one rpm package for each "flavour" and it works well. I apparently can't install the Centos compiled rpm on Fedora. It gives me this error message : error: Failed dependencies: python(abi) = 2.6 is needed by myapp-0.9.el6.noarch Here is the relevant part of my .spec file : %{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())")} %{!?python_sitearch: %global python_sitearch %(%{__python} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib(1))")} Name: myapp Version: #VERSION# Release: #RELEASE#%{dist} Summary: myapp Group: Development/Languages License: Apache v2 Source0: %{name}-%{version}-#RELEASE#.tar.gz BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n) BuildArch: noarch BuildRequires: python-devel BuildRequires: python-setuptools %description myapp %prep %setup -c %build %{__python} setup.py build %install %{__rm} -rf %{buildroot} %{__python} setup.py install -O1 --skip-build --root %{buildroot} Do I really have to use mock and build 2 rpms or is there another way to create a single generic 2.x rpm package ?

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• chrooting php-fpm with nginx

  - by dragonmantank

  I'm setting up a new server with PHP 5.3.9 and nginx, so I compiled PHP with the php-fpm SAPI options. By itself it works great using the following server entry in nginx: server { listen 80; server_name domain.com www.domain.com; root /var/www/clients/domain.com/www/public; index index.php; log_format gzip '$remote_addr - $remote_user [$time_local] "$request" $status $bytes_sent "$http_referer" "$http_user_agent" "$gzip_ratio"'; access_log /var/www/clients/domain.com/logs/www-access.log; error_log /var/www/clients/domain.com/logs/www-error.log error; location ~\.php$ { fastcgi_pass 127.0.0.1:9001; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/clients/domain.com/www/public$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_script_name; include /etc/nginx/fastcgi_params; } } It servers my PHP files just fine. For added security I wanted to chroot my FPM instance, so I added the following lines to my conf file for this FPM instance: # FPM config chroot = /var/www/clients/domain.com and changed the nginx config: #nginx config for chroot location ~\.php$ { fastcgi_pass 127.0.0.1:9001; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME www/public$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_script_name; include /etc/nginx/fastcgi_params; } With those changes, nginx gives me a File not found message for any PHP scripts. Looking in the error log I can see that it's prepending the root path to my DOCUMENT_ROOT variable that's passed to fastcgi, so I tried to override it in the location block like this: fastcgi_param DOCUMENT_ROOT /www/public/; fastcgi_param SCRIPT_FILENAME $fastcgi_script_name; but I still get the same error, and the debug log shows the full, unchrooted path being sent to PHP-FPM. What am I missing to get this to work?

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• Getting a TTY in a Connectback Shell

  - by Asad R.

  I'm often asked by friends to help with small Linux problems, and more often than not I'm required to login to the remote system. Usually there are a lot of issues with making an account and logging in (sometimes the box is behind a NAT device, sometimes SSHD isn't installed, etc.) so I usually just ask them to make a connect-back shell using netcat (nc -e /bin/bash ). If they don't have netcat I can just ask them to grab a copy of a statically compiled binary which isn't that hard or time consuming to download and run. Though this works well enough for me to enter simple commands, I can't run any apps that require a tty (vi, for example) and can't use any job control functions. I managed to bypass this issue by running in.telnetd with a few arguments within the connect-back shell that would assign me a terminal and drop me to a shell. Unfortunately in.telnetd isn't usually installed by default on most systems. What's the easiest way to get a fully functional connect-back terminal shell without requiring any non-standard packages? (A small C program that does the job would be fine as well, I just can't seem to find much documentation on how a TTY is assigned/allocated. A solution that doesn't require me to plough through the source code for SSHD and TELNETD would be nice :))

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• Apache HTTPD - Segmentation fault when loading mod_jk module

  - by Hans Engel

  I just set up mod_jk with my Apache httpd 2.0.52 installation, but now when I try to start Apache, it has a segmentation fault. I've checked that I am using the mod_jk compiled for 2.0.x.. built against the same version I have, in fact. I've also verified that the path I'm giving to LoadModule is correct, and the permissions and the ownership of the file are the same as the rest of the modules'. When I remove the "LoadModule" command for mod_jk from my httpd.conf, there is no segmentation fault. Nothing shows in Apache's error logs. I have tried restarting the server with this module using both service httpd restart and httpd. These are the last few lines returned of strace httpd -X: gettimeofday({1292100295, 434487}, NULL) = 0 socket(PF_INET6, SOCK_STREAM, IPPROTO_IP) = -1 EAFNOSUPPORT (Address family not supported by protocol) socket(PF_NETLINK, SOCK_RAW, 0) = 3 bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0 getsockname(3, {sa_family=AF_NETLINK, pid=22378, groups=00000000}, [12]) = 0 time(NULL) = 1292100295 sendto(3, "\24\0\0\0\26\0\1\3\307\342\3M\0\0\0\0\0\305\333\267", 20, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20 recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"<\0\0\0\24\0\2\0\307\342\3MjW\0\0\2\10\200\376\1\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 664 recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3\0\2\0\307\342\3MjW\0\0\0\0\0\0\1\0\0\0\10\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20 close(3) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3 --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ Process 22378 detached Has anyone had a similar problem using Apache 2.0.52 with mod_jk? I might try downloading and building the source for the Apache server and mod_jk myself if there isn't a discovered fix for this.

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• Postfix SASL Authentication using PAM_Python

  - by Christian Joudrey

  Cross-post from: http://stackoverflow.com/questions/4337995/postfix-sasl-authentication-using-pam-python Hey guys, I just set up a Postfix server in Ubuntu and I want to add SASL authentication using PAM_Python. I've compiled pam_python.so and made sure that it is in /lib/security. I've also added created the /etc/pam.d/smtp file and added: auth required pam_python.so test.py The test.py file has been placed in /lib/security and contains: # # Duplicates pam_permit.c # DEFAULT_USER = "nobody" def pam_sm_authenticate(pamh, flags, argv): try: user = pamh.get_user(None) except pamh.exception, e: return e.pam_result if user == None: pam.user = DEFAULT_USER return pamh.PAM_SUCCESS def pam_sm_setcred(pamh, flags, argv): return pamh.PAM_SUCCESS def pam_sm_acct_mgmt(pamh, flags, argv): return pamh.PAM_SUCCESS def pam_sm_open_session(pamh, flags, argv): return pamh.PAM_SUCCESS def pam_sm_close_session(pamh, flags, argv): return pamh.PAM_SUCCESS def pam_sm_chauthtok(pamh, flags, argv): return pamh.PAM_SUCCESS When I test the authentication using auth plain amltbXkAamltbXkAcmVhbC1zZWNyZXQ= I get the following response: 535 5.7.8 Error: authentication failed: no mechanism available In the postfix logs I have this: Dec 2 00:37:19 duo postfix/smtpd[16487]: warning: SASL authentication problem: unknown password verifier Dec 2 00:37:19 duo postfix/smtpd[16487]: warning: SASL authentication failure: Password verification failed Dec 2 00:37:19 duo postfix/smtpd[16487]: warning: localhost.localdomain[127.0.0.1]: SASL plain authentication failed: no mechanism available Any ideas? tl;dr Anyone have step by step instructions on how to set up PAM_Python with Postfix? Christian

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• Idle state detection for server

  - by odinmillion

  Windows OS has a service that detects idle state. Details: Task Idle Conditions The computer is considered idle if all the processors and all the disks were idle for more than 90% of the past 15 minutes and if there is no keyboard or mouse input during this period of time. When the Task Scheduler service detects that the computer is idle, the service only waits for user input to mark the end of the idle state. It is very useful for usual PCs that have keyboard amd mouse. We can use standard task scheduler to start some process like defrag when PC in idle state and stop when PC isn't in idle state. But what should we use when we using a standalone server without keyboard and mouse? Server sometimes receives commands by TCP/IP and starts CPU and HDD activity. But sometimes CPU and HDD activity at zero level. I would like to use this periods of time to start defrag or another process. But this started at "idle" state processes should be terminated when another commands will appear. So, standard idle state conditions cant help me because we have not got user input to stop idle state. I need more customizable idle state detector. Automatically started processes shouldn't influence to idle state, but PC should go away from idle state when another process will apperar. What should I use? Maybe exists some advansed task scheduler? Or I should write some useful utility on C#? I hope that it is a standard task and all useful utilities already compiled :)

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• How to install QEMU on Damn Small Linux?

  - by user2934303

  i'm trying to install QEMU on a Damn Small Linux installation in order to emulate pentium features in a 486 computer. Though DSL was descontinued, it's the only linux that runs reasonably on the 486 processor, most recent kernels doesn't even boot on 486 architecture. I tried Tiny Core Linux, but it doesn't work in 486, so i seem to have no escape here. The most recent image of DSL is from 2008, it uses kernel 2.4.x, and i couldn't find a way to compile QEMU on it. Firstly, it lacks several compile tools needed for compiling it, and, it have several dependency problems. I tried some pre-compiled packages, but the only one that worked was a QEMU 5.2 RPM package (it didn't had dependency problems), and it was way too old, it wasn't capable of running windows yet, it just gave me the option of emulating a code, not a full OS as windows, and it also didn't give me the option to choose which architecture i wanted it to emulate (-cpu option). Can anyone help me with this? Also, if someone can think of some alternative to it, i'd be grateful. Thanks.

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• Compile php 5.3 ldap extension

  - by toups

  So trying to follow the very un-descriptive guide at my webhost for compiling a new php extension: **Compiling PHP 5.3 extensions You can also compile and load your own extensions. Here's how:** 1. Download and unpack the extension (from PECL, for instance). 2. If the extension is already compiled (most binary PHP loaders will be, for instance), skip to step 6. 3. /usr/local/php53/bin/phpize 4. ./configure --with-php-config=/usr/local/php53/bin/php-config 5. make 6. Copy the module to your .php/5.3/ directory. 7. Assuming your user is called "username" and your module is named "mymodule.so", add the following to your .php/5.3/phprc: extension = /home/username/.php/5.3/mymodule.so Downloaded Openldap stable release online, uploaded the unpacked gzip via ftp to my server, did step 3, 4, 5. Now on step 6 is says "copy the module...". My question is where is the module for me to copy? Sorry if it's obvious and I'm not seeing it; first time compiling a php extension :O

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• cisco 2900xl - SNMP - Get mac address of device connected to an interface

  - by ankit

  Hello all, Basically what i want to do is to find out what is the mac address of a device plugged in to an interface on the switch (FastEthernet0/1 for example) reading through the switch documentaion i found out that i can configure snmp trap on it to make it notify of any new mac address the switch detects by using the command snmp-server enable traps mac-notifiction but for some reason my switch does not support this feature. the only options i see are CORE_SWITCH(config)#snmp-server enable traps ? c2900 Enable SNMP c2900 traps cluster Enable Cluster traps config Enable SNMP config traps entity Enable SNMP entity traps hsrp Enable SNMP HSRP traps snmp Enable SNMP traps vlan-membership Enable VLAN Membership traps vtp Enable SNMP VTP traps <cr> so the other way would be for me to run a cronjon on my gateway to poll the switch periodically using snmp to get new mac addresses i have looked everywhere but cant seem to find the OID that would provide me this information. any help i can get would me very much appreciated ! here's the output from "show version" on my switch Cisco Internetwork Operating System Software IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5.4)WC(1), MAINTENANCE INTERIM SOFTWARE Copyright (c) 1986-2001 by cisco Systems, Inc. Compiled Tue 10-Jul-01 11:52 by devgoyal Image text-base: 0x00003000, data-base: 0x00333CD8 ROM: Bootstrap program is C2900XL boot loader CORE_SWITCH uptime is 1 hour, 24 minutes System returned to ROM by power-on System image file is "flash:c2900XL-c3h2s-mz.120-5.4.WC.1.bin" cisco WS-C2912-XL (PowerPC403GA) processor (revision 0x11) with 8192K/1024K bytes of memory. Processor board ID FAB0409X1WS, with hardware revision 0x01 Last reset from power-on Processor is running Enterprise Edition Software Cluster command switch capable Cluster member switch capable 12 FastEthernet/IEEE 802.3 interface(s) 32K bytes of flash-simulated non-volatile configuration memory. Base ethernet MAC Address: 00:01:42:D0:67:00 Motherboard assembly number: 73-3397-08 Power supply part number: 34-0834-01 Motherboard serial number: FAB040843G4 Power supply serial number: DAB05030HR8 Model revision number: A0 Motherboard revision number: C0 Model number: WS-C2912-XL-EN System serial number: FAB0409X1WS Configuration register is 0xF thanks, -ankit

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• needing storage integrity (write/read) test - for BASH

  - by Mr. Bash

  In need of shell scripts / bash commands to verify data integrity of local harddrives, usb-drives, etc, ... Like the famous www.heise.de/download/h2testw; or something that is at least common within repositories. (h2testw writes a specific datastring over and over onto the medium, then reads it again to verify if it was written correctly and displays write/read time/speed.) please no dd if=/dev/random of=/dev/sdx bs=1k && dd if=/dev/sdx of=/dev/null bs=1k since it won't verify if everything was written correctly. It is only a test if read/write is successful to the device. So far, I'm not too happy with badblocks -w -v /dev/sdx1 either, since it seems rather slow and I don't know what it exactly writes, and if it considers wear-leveling on flash media. There is also a program named F3 http://oss.digirati.com.br/f3/ that needs to be compiled. Designed after h2testw, the concept sounds interesting, i'd just rather have it as a ready to go bash script.

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• bind9 dlz/mysql at ubuntu segfault libmysqlclient.so

  - by Theos

  I have a big problem. I installed the bind9 nameserver to three different computer. two Ubuntu 10.04.4 LTS, and one Ubuntu 11.10 I compiled it 9.7.0, 9.7.3, 9.9.0 with this method: ./configure --prefix=/usr --sysconfdir=/etc/bind --localstatedir=/var \ --mandir=/usr/share/man --infodir=/usr/share/info \ --enable-threads --enable-largefile --with-libtool --enable-shared --enable-static \ --with-openssl=/usr --with-gssapi=/usr --with-gnu-ld \ --with-dlz-mysql=yes --with-dlz-bdb=no \ --with-dlz-filesystem=yes --with-geoip=/usr make make install After the set up for dlz/mysql, the BIND server is working perfetctly until 5-30 minute long. Ahter i got segfault. I resolve temporaly the problem with a simple process watchdog, and if the named is stopped, the watchdog is restart it, but this is not a good idea in long therm. My log output is: messages: Apr 13 19:33:51 dnsvm kernel: [ 8.088696] eth0: link up Apr 13 19:33:58 WATCHDOG: named not running. Restarting Apr 13 19:35:08 dnsvm kernel: [ 87.082572] named[1027]: segfault at 88 ip b71c4291 sp b5adfe30 error 4 in libmysqlclient.so.16.0.0[b714e000+1aa000] Apr 13 19:35:08 WATCHDOG: named not running. Restarting Apr 13 19:35:08 dnsvm kernel: [ 87.457510] named[1423]: segfault at 68 ip b71d6122 sp b52f0a40 error 4 in libmysqlclient.so.16.0.0[b7160000+1aa000] Apr 13 19:35:09 WATCHDOG: named not running. Restarting Apr 13 19:41:56 dnsvm kernel: [ 494.838206] named[1448]: segfault at 88 ip b731c291 sp b5436e30 error 4 in libmysqlclient.so.16.0.0[b72a6000+1aa000] Apr 13 19:41:57 WATCHDOG: named not running. Restarting Apr 13 19:57:26 dnsvm kernel: [ 1424.023409] named[2976]: segfault at 88 ip b72d1291 sp b6beee30 error 4 in libmysqlclient.so.16.0.0[b725b000+1aa000] Apr 13 19:57:26 WATCHDOG: named not running. Restarting Apr 13 20:11:56 dnsvm kernel: [ 2294.324663] named[6441]: segfault at 88 ip b7357291 sp b6473e30 error 4 in libmysqlclient.so.16.0.0[b72e1000+1aa000] Apr 13 20:11:57 WATCHDOG: named not running. Restarting syslog: http://pastebin.com/hjUyt8gN the first server is a native, normal x64 server (u1004lts), the second is virtualised server (u11.10) the third is also virtualised (10.04lts) This servers is only for dns providing with mysql server db. But the problem is be with all server, and all bind version. named.conf: http://pastebin.com/zwm1yP7V Can anybody help me, or any good idea?

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• How to get an ARM CPU clock speed in Linux?

  - by MiKy

  I have an ARM-based embedded machine based on S3C2416 board. According to the specifications I have available there should be a 533 MHz ARM9 (ARM926EJ-S according to /proc/cpuinfo), however the software running on it "feels" slow, compared to the same software on my Android phone with a 528MHz ARM CPU. /proc/cpuinfo tells me that BogoMIPS is 266.24. I know that I should not trust BogoMIPS regarding performance ("Bogo" = bogus), however I would like to get a measurement on the actual CPU speed. On x86, I could use the rdtsc instruction to get the time stamp counter, wait a second (sleep(1)), read the counter again to get an approximation on the CPU speed, and according to my experience, this value was close enough to the real CPU speed. How can I find the actual CPU speed of given ARM processor? Update I found this simple Pi calculator, which I compiled both for my Android phone and the ARM board. The results are as follows: S3C2416 # cat /proc/cpuinfo Processor : ARM926EJ-S rev 5 (v5l) BogoMIPS : 266.24 Features : swp half fastmult edsp java ... #./pi_arm 10000 Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2a.memsave ... 8.50 sec. (real time) Android # cat /proc/cpuinfo Processor : ARMv6-compatible processor rev 2 (v6l) BogoMIPS : 527.56 Features : swp half thumb fastmult edsp java # ./pi_android 10000 Calculation of PI using FFT and AGM, ver. LG1.1.2-MP1.5.2a.memsave ... 5.95 sec. (real time) So it seems that the ARM926EJ-S is slower than my Android phone, but not twice slower as I would expect by the BogoMIPS figures. I am still unsure about the clock speed of the ARM9 CPU.

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• Best CPUs for speeding up compiling times of C++ w/ DistGCC

  - by Jay

  I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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• Best CPUs for speeding up compiling times of C++ w/ DistGCC

  - by Jay

  I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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• Best CPUs for speeding up compiling times of C++ w/ DistGCC

  - by Jay

  I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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• Different versions of iperf for windows give totally different results

  - by Albert Mata

  Measuring TCP output from a Windows client to Solaris server: WXP SP3 with iperf 1.7.0 -- returns an average around 90Mbit Same client, same server but iperf 2.0.5 for windows -- returns an average of 8.5 Mbit Similar discrepancies have been observed connecting to other servers (W2008, W2003) It's difficult to get to some conclusions when different versions of the same tool provide vastly different results. Example below: C:\tempiperf -v (from iperf.fr) iperf version 2.0.5 (08 Jul 2010) pthreads C:\tempiperf -c solaris10 Client connecting to solaris10, TCP port 5001 TCP window size: 64.0 KByte (default) [ 3] local 10.172.181.159 port 2124 connected with 10.172.180.209 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.2 sec 10.6 MBytes 8.74 Mbits/sec Abysmal perfomance, but now I test from the same host (Windows XP SP3 32bit and 100Mbit) to the same server (Solaris 10/sparc 64bit and 1Gbit running iperf 2.0.5 with default window of 48k) with the old iperf C:\temp1iperf -v iperf version 1.7.0 (13 Mar 2003) win32 threads C:\temp1iperf.exe -c solaris10 -w64k Client connecting to solaris10, TCP port 5001 TCP window size: 64.0 KByte [1208] local 10.172.181.159 port 2128 connected with 10.172.180.209 port 5001 [ ID] Interval Transfer Bandwidth [1208] 0.0-10.0 sec 112 MBytes 94.0 Mbits/sec So one iperf with a 64k window says 8.75Mbit and the old iperf with the same window size says 94.0Mbit. These results are constant through repeated tests. From my testing launching iperf(old) with window size "x" and iperf(new) with window size "x" instead of producing the same or very close results produce totally different results. The only difference I see is the old compiled as win32 threads vs. pthreads but parallelism (-P 10) appears to work in both. Anyone has a clue or can recommend a tool that gives results I can trust?? EDIT: Looking at traces from (old) iperf it sets the TCP Window Scale flag to 3 in the SYN packet, when I run the (new) iperf this is set to 0 in the initial packet. A quick analysis of the window size through the exchange shows the (old) iperf moving back and forth but mostly at 32k while the (new) iperf mostly keeps at 64k. Maybe it will help somebody to connect the dots.

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• Running Jackd on Ubuntu for my External Firewire Sound card

  - by Asaf

  Hello, I'm running Ubuntu 10.04 and I have an external Sound card: Phonic Firefly 302. I've connected the device, installed Jackd, added the lines: @audio - rtprio 99 @audio - memlock 500000 @audio - nice -10 to /etc/security/limits.conf logged out, logged back in, ran qjackctl (sudo qjackctl to be exact), ran the settings and chose "firewire" on the driver option, pressed "Start" and that was the output: 20:10:19.450 Patchbay deactivated. 20:10:19.578 Statistics reset. 20:10:19.601 ALSA connection graph change. 20:10:19.828 ALSA connection change. 20:10:21.293 Startup script... 20:10:21.293 artsshell -q terminate sh: artsshell: not found 20:10:21.695 Startup script terminated with exit status=32512. 20:10:21.695 JACK is starting... 20:10:21.695 /usr/bin/jackd -dfirewire -r44100 -p1024 -n3 jackd 0.118.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details 20:10:21.704 JACK was started with PID=22176. no message buffer overruns JACK compiled with System V SHM support. loading driver .. libffado 2.0.0 built Mar 31 2010 14:47:42 firewire ERR: Error creating FFADO streaming device cannot load driver module firewire no message buffer overruns 20:10:21.819 JACK was stopped successfully. 20:10:21.819 Post-shutdown script... 20:10:21.822 killall jackd jackd: no process found 20:10:22.230 Post-shutdown script terminated with exit status=256. 20:10:23.865 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info. Error: "/tmp/kde-asaf" is owned by uid 1000 instead of uid 0.

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