In this CentOS 5.5 tutorial we will be showing you how to change the hostname. The assumption is that you are running as root and have a basic understanding of the software required but if you follow this tutorial you should be able to complete the task successfully.
To find the machine’s fully qualifier domain name (FQDN) see for yourself how the machine identifies itself:
# uname -n
centos01.how2centos.com
# dnsdomainname
how2centos.com
It’s a great day for CentOS and its community because, according to Web Technology Surveys, in July 2010, “For the first time, CentOS is now leading the Linux distribution statistics on web servers with almost 30% of all Linux servers.”

Read more at W3Techs
RT @CentOS: 5.4 is baked! CentOS internal network will start syncing up today. Release ~ soon!
CentOS 5.4 will be hitting our local CentOS mirrors and YUM repositories shortly, so in anticipation for the release lets take a look at the history and trends of CentOS 5 releases.
The Google Trend graph below shows a nice steady upwards trend on the generic CentOS search phrase which is a good indication of a growing and stable Linux distribution.
The below Google Trend graph compares the different versions of CentOS 5. What’s great to see is that there is a steady overall growth in the CentOS camp and with every new release, with the previous version tailing off, the newer CentOS version takes the lead and continues the steady upwards trend.


