---
name: "dnsdomainname"
section: "1"
platform: "linux"
package: "inetutils"
version: "2.8-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/dnsdomainname"
---

# dnsdomainname(1)

show DNS domain name

## NAME

dnsdomainname - show DNS domain name

## SYNOPSIS

**dnsdomainname** \[*OPTION*...\]

## DESCRIPTION

Show domain part of the system's fully qualified host name.

The tool uses gethostname to get the host name of the system and getaddrinfo to resolve it into a canonical name.  The part after the first period ('.') of the canonical name is shown.

- \-?, **--help**

  give this help list

- **--usage**

  give a short usage message

- **-V**, **--version**

  print program version

## AUTHOR

Written by Simon Josefsson.

## REPORTING BUGS

Report bugs to \<bug-inetutils@gnu.org\>.

## COPYRIGHT

Copyright © 2026 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later \<https://gnu.org/licenses/gpl.html\>.\
 This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

## SEE ALSO

[gethostname(2)](/gethostname/2.md), [getaddrinfo(3)](/getaddrinfo/3.md)

The full documentation for **dnsdomainname** is maintained as a Texinfo manual.  If the **info** and **dnsdomainname** programs are properly installed at your site, the command

-

  **info dnsdomainname**

should give you access to the complete manual.