How Do I Change My Fully Qualified Domain Name in Linux?
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How do I change my domain name in Linux?

Setting your domain:

  1. Then, in /etc/resolvconf/resolv. conf. d/head , you’ll add then line domain your.domain.name (not your FQDN, just the domainname).
  2. Then, run sudo resolvconf -u to update your /etc/resolv. conf (alternatively, just reproduce the previous change into your /etc/resolv. conf ).

How do I find the FQDN in Linux?

To view the name of the DNS domain and FQDN (Fully Qualified Domain Name) of your machine, use the -f and -d switches respectively. And the -A enables you to see all the FQDNs of the machine. To display the alias name (i.e., substitute names), if used for the host name, use the -a flag.

Maya Lin-Takahashi

Maya Lin-Takahashi

Consumer Tech & Gadget Reviewer

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.

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