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 <[email protected]>.
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), getaddrinfo(3)
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.