Domain Name Check Linux. Most operating systems comes with built-in nslookup feature. It is used to query specific DNS resource records RR as well.
Or the domain name. Both commands can either set or show the current host domain or node name of the system. Get Host name By Echoing Host name File.
First of all check if your server is having domain name already set up or not using below command.
The procedure to find the computer name on Linux. Nslookup or name server lookup is a command-line tool useful in getting information from the domain name server. Cat etchostname Get Host name By Echoing Host name File. You can check the FQDN using hostname --fqdn or the domain name using dnsdomainname.