DNS determines whether a server can reach the internet via domain names. There are two ways to configure DNS server IP addresses on Linux.

Verification method:

1

ping www.baidu.com

1. Temporary method
   a) Edit resolv.conf

   1	vi ./etc/resolv.conf

   b) Enter

   1	nameserver 8.8.8.8

   Save and you’re done.

2. Permanent method
   a) Edit ifcfg-eth0

   1	vi /etc/sysconfig/network-scripts/ifcfg-eth0

   b) Enter

   1	DNS1=8.8.8.8

   Save and you’re done.

You can use

1

ifconfig

to view the local network interfaces, where you can see the eth0 configuration information.