OpenKB::Server Technical Papers » Linux Maintenance http://www.openkb.org Computer , server issues and solutions Thu, 02 Feb 2012 16:50:15 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Linux: PERL SSL verification error:14090086 http://www.openkb.org/linux-perl-ssl-verification-error14090086/ http://www.openkb.org/linux-perl-ssl-verification-error14090086/#comments Tue, 17 Jan 2012 09:09:28 +0000 admin http://www.openkb.org/?p=1097 error:
LWP::Protocol::https::Socket: SSL connect attempt failed with unknown errorerror:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed at /usr/share/perl5/LWP/Protocol/http.pm line 51.

Solution:
There are other solutions available but the one we needed was to turn off the verification

we ran
export PERL_LWP_SSL_VERIFY_HOSTNAME=0

Thanks to

https://community.sourcefire.com/questions/running-into-an-ssl-issue-with-nexpose-connector

]]> http://www.openkb.org/linux-perl-ssl-verification-error14090086/feed/ 0 Linux: GET Command http://www.openkb.org/linux-get-command/ http://www.openkb.org/linux-get-command/#comments Tue, 17 Jan 2012 07:44:35 +0000 admin http://www.openkb.org/?p=1095 If you were like me then trying the find which package has the GET command was like pulling teeth.

Hopefully this will save you some time. the GET command is part of the libwww-perl package

Ubuntu list

http://packages.ubuntu.com/hardy-updates/all/libwww-perl/filelist

Man Page

http://manpages.ubuntu.com/manpages/natty/man1/lwp-request.1p.html

]]> http://www.openkb.org/linux-get-command/feed/ 0 Vi: Found a swap file by the name http://www.openkb.org/vi-found-a-swap-file-by-the-name/ http://www.openkb.org/vi-found-a-swap-file-by-the-name/#comments Fri, 11 Nov 2011 15:34:50 +0000 admin http://www.openkb.org/?p=1067 If you encounter the message

(1) Another program may be editing the same file.
If this is the case, be careful not to end up with two
different instances of the same file when making changes.
Quit, or continue with caution.

(2) An edit session for this file crashed.
If this is the case, use “:recover” or “vim -r file name”

This means the terminal crashed while you were editing the file. This can also mean someone else is modifying the file.

You can remove the message by deleting the swap file. You will notice a file name in the same directory ending with .swp

]]> http://www.openkb.org/vi-found-a-swap-file-by-the-name/feed/ 0 LibreOffice: Open source M$ Office alternative http://www.openkb.org/open-source-m-office-alternative/ http://www.openkb.org/open-source-m-office-alternative/#comments Wed, 09 Nov 2011 08:27:21 +0000 admin http://www.openkb.org/?p=1061 While OKB fully supports the Open source community. We enjoyed our time testing out a new Office application called LibreOffoce . This project is backed by The Document Foundation . We found the application to be comparable with Microsoft Office suit 2000 up to version 2010. You can save in docx, xlsx, doc and xls. If you travel without the laptop upload the odp file to Google Docs.

This is a cost effective solution for any user that needs a office suit. Please donate what you can to support this application. They are not asking for the 300. you pay M$ .

Fully supported by OpenKB. Thank you Document Foundation cheers

Available for Mac OS, Windows and Linux

]]> http://www.openkb.org/open-source-m-office-alternative/feed/ 0 Crond: enable logging http://www.openkb.org/crond-enable-logging/ http://www.openkb.org/crond-enable-logging/#comments Sun, 06 Nov 2011 11:31:43 +0000 admin http://www.openkb.org/?p=1055 Depending on your distro , you will need to locate the syslog file. This file is normally found under /etc/syslog.conf

open this file and uncomment the line starting with cron.*

Restart syslog and cron

/etc/init.d/syslog or sysklogd restart

/etc/init.d/crond restart

The logs are normally stored under /var/log/cron

]]> http://www.openkb.org/crond-enable-logging/feed/ 0 Mysql: Can’t read dir of (errno: 13) http://www.openkb.org/mysql-can%e2%80%99t-read-dir-of-errno-13/ http://www.openkb.org/mysql-can%e2%80%99t-read-dir-of-errno-13/#comments Sun, 30 Oct 2011 08:48:33 +0000 admin http://www.openkb.org/?p=1053 Error: ERROR 1018 (HY000): Can’t read dir of ‘./dbname/’ (errno: 13)

check the folder permissions on the db folder under /var/lib/mysql/

Try running chown mysql:mysql dbname/ -R or chown -R 700 dbname

]]> http://www.openkb.org/mysql-can%e2%80%99t-read-dir-of-errno-13/feed/ 0 ImageMagick: sh: /convert: No such file or directory http://www.openkb.org/imagemagick-sh-convert-no-such-file-or-directory/ http://www.openkb.org/imagemagick-sh-convert-no-such-file-or-directory/#comments Mon, 05 Sep 2011 03:41:22 +0000 admin http://www.openkb.org/?p=1033 you should first verify imagemagick has been installed properly. Via the command line you can run “which convert” This should return the location of the binary for convert.

then run /usr/bin/convert -version . Please understand this was our return path for convert. Use the path returned from the which.

If imagemagick is installed properly , and you are attempting to run code via PHP. The no such file or directory can be a result of PHP Safe mode being on and open_basedir in effect.

Add the convert location to your open_basedir
Example :
open_basedir= /home/www:/usr/bin

]]> http://www.openkb.org/imagemagick-sh-convert-no-such-file-or-directory/feed/ 0 Perl Module: DBD::mysql installation http://www.openkb.org/perl-module-dbdmysql-installation/ http://www.openkb.org/perl-module-dbdmysql-installation/#comments Tue, 23 Aug 2011 09:02:11 +0000 admin http://www.openkb.org/?p=1023 First things to ensure is that if you installed the 64bit version of Perl. Make sure you install the 64bit version of Mysql and mysql-devel. You will also need the GCC compiler installed on the server for linux.

To check the current Perl modules installed run instmodsh
To install the module run perl -MCPAN -e shell
Then
install Bundle::DBD::mysql

under windows run

ppm install DBI
ppm install DBD::mysql

More information can be found at the cpan website

http://code.activestate.com/ppm/

]]> http://www.openkb.org/perl-module-dbdmysql-installation/feed/ 0 Linux: memory alloc (24 bytes) returned NULL http://www.openkb.org/linux-memory-alloc-24-bytes-returned-null/ http://www.openkb.org/linux-memory-alloc-24-bytes-returned-null/#comments Fri, 03 Jun 2011 14:21:56 +0000 admin http://www.openkb.org/?p=974 The error :memory alloc (24 bytes) returned NULL
System: virtual, 512ram, centos 5.5 x64

Issue: The server does not have enough memory to run the current process. This happen to use when attempting to update using YUM.

Our solution was to reload the OS with ubuntu to take advantage of apt-get since Yum required at least 512 ram and we were running 512 on a virtual unit. Your other option is to upgrade the ram on the server to at least 1gb. If you have a VPS with true burstable ram , you should not encounter this issue.
Another option that you can do is setup swap storage on the drive to be used as memory.

]]> http://www.openkb.org/linux-memory-alloc-24-bytes-returned-null/feed/ 0 YUM install/update error http://www.openkb.org/yum-installupdate-error/ http://www.openkb.org/yum-installupdate-error/#comments Wed, 05 Jan 2011 09:14:31 +0000 admin http://www.openkb.org/?p=913 “Another application is running which is accessing software information” but you are not updating your packages, the problem is yum-updatesd. yum-updatesd is supposed to check regularly if you have any updates. Unfortunately it locks all package programs like yum and pup

Stop the yum-updatesd service and then run your yum command. Dont forget to restart it

/etc/init.d/yum-updatesd stop
/etc/init.d/yum-updatesd start

]]> http://www.openkb.org/yum-installupdate-error/feed/ 0