How do I use OpenDNS server for my CentOS Linux vps or dedicated server to resolve hostnames?
You need to edit the /etc/resolv.conf file which is resolver configuration file for CentOS Linux server. The syntax is as follows:
nameserver {Name server IP address}
How To Use OpenDNS For Centos Server
You need to set name server that the resolver should query and up to 3 name servers may be listed in /etc/resolv.conf file. Edit /etc/resolv.conf, run:
vi /etc/resolv.conf
Append / modify the file as follows:
nameserver 208.67.222.222 nameserver 208.67.220.220
Save and close the file.
Test It
Type the following command:
dig google.com
Sample outputs:
; <<>> DiG 9.6.1-P1 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51272
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 65 IN A 74.125.67.100
google.com. 65 IN A 74.125.53.100
google.com. 65 IN A 74.125.45.100
;; Query time: 202 msec
;; SERVER: 208.67.222.222#53(208.67.222.222)
;; WHEN: Sun Nov 22 18:27:01 2009
;; MSG SIZE rcvd: 76