SysAdminGear

Your NFS server is crashing? You have no problems when is reading but it cant write?

NFS was optimized and the only thing was updated Red Hat kernel v5.2 and CentOS 5.2 64 bit edition.

To fix this problem you should updated kernel packages. It will fix various security problems and bugs.

a 50-75% drop in NFS server rewrite performance, compared to Red Hat Enterprise Linux 4.6, has been resolved.

Sometimes you just login in into a box using ssh and need to check the OS version.

If this box runs CentOS you can use this command to determine what is the CentOS version:

[root@box ~]# cat /etc/*release*
CentOS release 4.3 (Final)

How to Create a VMWare Virtual Machine for CentOS Linux

This video shows the preparation of a Virtual machine in VMWare to install CentOS Linux, this Tprocedure is similar for other Operanting Systems.

Read more abou WMWare on Wikipedia

This is very easy to use Unrar on CentOS Linux,

Download and use rm to install Unrar:
# wget http://dag.wieers.com/packages/unrar/unrar-3.6.2-1.el4.rf.i386.rpm
# rpm -Uvh unrar-3.6.2-1.el4.rf.i386.rpm

Extrating a .rar file:
"unrar e -kb rarfile.rar