What is an [A] Record?
An [A] Record or an Address Record, assigns an IP address to a domain or subdomain name.
The value of an A record is always an IP address.
How to check an [A] Record?
Use the dig
command, to check which IP address is assigned to the domain name.
$ dig A centos.org +short 72.232.194.162 $ dig A wiki.centos.org +short 72.232.194.162
Adding [A] Record to DNS — Examples
Use the following syntax to add an [A] Record to a Zone File.
[A] Record for Domain
The following example indicates that the IP Address for the domain example.com
is 192.168.0.100:
example.com. IN A 192.168.0.100
[A] Record for SubDomain
The following example indicates that the IP Address for the subdomain www.example.com
is 192.168.0.100:
www.example.com. IN A 192.168.0.100
Wildcard [A] Record
The following example indicates that the IP Address for any subdomain of the domain example.com
is 192.168.0.100:
*.example.com. IN A 192.168.0.100