resolv.conf is used by Linux servers for specifying DNS servers used to domain name resolution. Location of the file is Example In above example, google public name servers 8.8.8.8 will be used for DNS resolution. If you edit this file,
Google started Public DNS service like OpenDNS. Google Public DNS server IP address are 8.8.8.8 8.8.4.4 You can use google dns for resolving name servers by editing resolv.conf vi /etc/resolv.conf add nameserver 8.8.8.8 nameserver 8.8.4.4 For more information on Google