Category Archives: General Command Line

How do I find out if I am running 64bit or 32bit Centos?

Posted on July 20, 2010 by admin

Sometimes you can’t remember if you installed 64bit or 32bit centos, to find out which version you are using; uname -a And you will get a response like [root@monitor zenoss]# uname -a xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx i686 i686 i386 GNU/Linux

Posted in Centos 5.2, Command Line, General Command Line | Tagged , , | 2 Comments

How Do I Find Which Version of Centos I Am Running?

Posted on July 20, 2010 by admin

Sometimes you install a centos machines ages ago and can’t remember what you installed. If you want to find out which version it is, easy tail /etc/redhat-release This will return something like; [root@]# tail /etc/redhat-release CentOS release 5.2 (Final)

Posted in Centos 5.2, Command Line, General Command Line | Tagged , , | Leave a comment

Upgrade from zenoss 2.5.2 stack installer to zenoss 3.0 on Centos

Posted on July 19, 2010 by admin

Instructions from http://nchc.dl.sourceforge.net/project/zenoss/Documentation/zenoss-3.0.x-docs/zendocs-3.0.0/Zenoss_Core_Installation_04-072010-3.0-v01.pdf Get the ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg wget http://downloads.sourceforge.net/project/zenoss/zenpacks-3.0%20%28Latest%20Stable%29/zenpacks-3.0.0/ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg?use_mirror=nchc&ts=1279596576 Change the permissions chown zenoss.zenoss ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg chmod 777 ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg Become the zenoss user su zenoss Run the install zenpack –install ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg Restart zopectl zopectl stop zopectl start Start the zencatalog zencatalog start … Continue reading →

Posted in Centos 5.2, Command Line, General Command Line, Open Source, Zenoss | Tagged , , , , | Leave a comment

A Good Centos System Administration Book

Posted on February 3, 2009 by admin

I have been a big fan of the unleashed guides every since I purchased Mac OS X Tiger Unleashed. I loved this book as it was both great for beginners but had some reallly good advanced sections that allowed me … Continue reading →

Posted in Apache, Centos 5.2, Command Line, General, General Command Line, Mysql, Networking, Open Source, RHEL5, Security, Snort, Zenoss | Tagged | 1 Comment

How To Create a Tar Archive of a Directory

Posted on December 3, 2008 by admin

  Tar stands for Tape Archive and is used to compress files or whole directories. Examples; tar -cvf mytarfile.tar mydir/ tar cf archive.tar * tar -cvzf name.tgz subdir where subdir is the name of the subdirectory you want to save. … Continue reading →

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