Linux centos : ping displays unknown host for any domain name
Question
Ping displays unknown host for any domain name.
It worked before this time true!!
Ping works for ip address but fails for domain names.
Can any one help me?
2 answers
solution1
5 2014-08-11 05:50:02
Check what's in /etc/resolv.conf . If there is no "nameserver" specified, you have to do that in order to resolve domains. Example:
nameserver dns1.domainname.com
nameserver dns2.domainname.com
or you can use Google's public DNS servers:
nameserver 8.8.8.8
nameserver 8.8.4.4
solution2
1 2015-06-23 20:59:13
(1) edit /etc/resolv.conf, add
nameserver dns1.domainname.com
nameserver dns2.domainname.com
(2) another reason may due to /etc/nsswitch.conf
add dns in the hosts: xxx
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