Error: Cannot open/read repomd.xml file for repository: rpmforge

Installation Error

Error: Cannot open/read repomd.xml file for repository: rpmforge

Any rpm package installs the linux system. Its shows below error.
 

[Errno 4] IOError: 
http://apt.sw.be/redhat/el5/en/i386/rpmforge/repodata/repomd.xml: [Errno 4] IOError: 
Trying other mirror.
Error: Cannot open/read repomd.xml file for repository: rpmforge

Run this command 

ping apt.sw.be

This command shows some details.

PING apt.sw.be (193.1.193.67) 56(84) bytes of data.
64 bytes from ie.freshrpms.net (193.1.193.67): icmp_seq=1 ttl=54 time=207 ms

Copy the ip address. and open the file 'resolv.conf ' file

vim /etc/resolv.conf

Paste the ip and domain name 

apt.sw.be 193.1.193.67

Save and quit the 'resolv.conf' file. Now installation process is smooth.