Centos Temporary failure in name resolution.

By David Yin on March 31, 2010 7:22 PM | No Comments
I installed Centos 5.4 on a PC server. I SSH to it and try to use yum to update the system. But, always give me the error as below 

[root@10 ~]# yum update
Repository base already added, not adding again
Setting up Repos
http://mirror.centos.org/centos/4/up...ta/repomd.xml: [Errno 4] IOError: 
Trying other mirror.
Cannot open/read repomd.xml file for repository: update
failure: repodata/repomd.xml from update: [Errno 256] No more mirrors to try.
The key is Temporary failure in name resolution. I think the domain resolution has problem. So Google it and find the answer. Check file /etc/resolv.conf and make sure it only has the following entries. nameserver xx.xx.xx.xx I edit this file and add Google public DNS server into it. So the file looks like following. nameserver 8.8.8.8 nameserver 8.8.4.4



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