How To Set Caching DNS Server

Posted on in Categories , , , , , , , , , , , , , last updated June 16, 2008

How do I set caching dns server to speed up dns lookup for my LAN (500 PC)? The DNS lookups creating a lot of network activity. There are a few times when this causes performance issues. How do I configure caching dns under Debian Linux?

Red hat / Fedora / CentOS Yum Repo is Listed More Than Once

Posted on in Categories , , , , , last updated January 16, 2009

Q. Why does my yum command fail with an error that a repo is listed more than once under Fedora / RHEL / CentOS Linux? This error occurs when I type yum clean command

Loading “rhnplugin” plugin
Loading “security” plugin

Repository xen-repo is listed more than once in the configuration

How do I fix this problem?

Continue reading “Red hat / Fedora / CentOS Yum Repo is Listed More Than Once”