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MKNETID(8) System Manager's Manual MKNETID(8)

mknetidgenerate a YP map of group and domain memberships

mknetid [-q] [-d domain] [-g groupfile] [-h hostfile] [-m netidfile] [-P master.passwdfile] [-p passwdfile]

The mknetid utility combines information from the passwd(5), group(5), hosts(5), and netid(5) files, printing it in netid(5) format to the standard output. If the passwd(5) file is not available, the master.passwd(5) file is used instead. The netid(5) file is optional and does not need to exist.

The most common application is to pass the output to makedbm(8) in order to create a netid.byname map for the yp(8) subsystem.

The options are as follows:

Use domain instead of the default domainname(1).
Use groupfile instead of /etc/group.
Use hostfile instead of /etc/hosts.
Use netidfile instead of /etc/netid.
Use master.passwdfile instead of /etc/master.passwd.
Use passwdfile instead of /etc/passwd.
Keep quiet about multiple occurrences of a user ID. Ignore all but the first.


domainname(1), group(5), hosts(5), netid(5), passwd(5), Makefile.yp(8)

Mats O Jansson <>

July 16, 2013 OpenBSD-6.4