pkg://caching-nameserver-7.3-3.0.1.el4_6.noarch.rpm:22836/HEADER  downloads

Name        : caching-nameserver           Relocations: (not relocateable)
Version     : 7.3                               Vendor: CentOS
Release     : 3.0.1.el4_6                   Build Date: Tue Jun 24 19:23:22 2008
Install date: (not installed)               Build Host: builder16.centos.org
Group       : System Environment/Daemons    Source RPM: caching-nameserver-7.3-3.0.1.el4_6.src.rpm
Size        : 44752                            License: Public Domain
Summary     : The configuration files for setting up a caching name server.
Description :
The caching-nameserver package includes the configuration files which
will make BIND, the DNS name server, act as a simple caching nameserver.
Many users on dialup connections use this package along with BIND for
such a purpose.

If you would like to set up a caching name server, you'll need to install
the caching-nameserver package; you'll also need to install bind.