HowTo: Edit The /etc/resolv.conf File in CentOS Linux

You need to use the text editor such as vi / vim or joe make changes to /etc/resolv.conf file. You must be logged in as root user in order to change this file. The /etc/resolv.conf is resolver configuration file. You can set nameserver ip address and domain search query name in this file.

Edit File Using Vi

Type the following command:
vi /etc/resolv.conf

Edit as follows and set name server IP address:

nameserver 8.8.8.8
nameserver 8.8.4.4

Save and close the file. Test new settings either with dig or host command:

dig google.com
  • dns, resolv.conf
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