chloe K wrote: > can i know how to set up dns cache server? > > do you have any useful website? > > for your use, dnsmasq would do nicely. with the rpmforge repo configured... # yum install dnsmasq # chkconfig dnsmasq on # service dnsmasq start *done* dnsmasq has some configuration options in /etc/dnsmasq.conf as well as man pages explaining more. there's some notes on it here, http://www.thekelleys.org.uk/dnsmasq/doc.html