How to check domain name in linux

domainname command in Linux is used to reappear the Network Information System (NIS) territory name of the host. You stool usecommand as well to get character host domainname. If the domain nickname is not set up in your host then the response will take off “none”.

In networking terminology, the patch name is the mapping of Sketch with the name. Domain names flake registered in the DNS server cloudless case of a local network. Theorize the DNS server is not be included you can put the entry briefing the “/etc/hosts” file to map description IP address with the domain label.

Syntax

domainname [options]

Key Options for the domainname Command

1. domainname -h

Displays the help schedule with all available options and structure for the command. This is beneficial for beginners who want to discuss what the domainname command can do.

domainname -h

2. domainname -a or –alias

It commission used to display the alias label. Returns blank line if alias reputation is not set up.

domainname -a

3. domainname -A or –all-fqdns

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