NETID(5) Standards, Environments, and Macros NETID(5)


netid - netname database




The netid file is a local source of information on mappings between
netnames (see secure_rpc(3NSL)) and user ids or hostnames in the local
domain. The netid file can be used in conjunction with, or instead of, a
network nameservice. The publickey entry in the nsswitch.conf (see
nsswitch.conf(5)) file determines which of these sources will be queried
by the system to translate netnames to local user ids or hostnames.

Each entry in the netid file is a single line of the form:

netname uid:gid, gid, gid...


netname 0:hostname

The first entry associates a local user id with a netname. The second
entry associates a hostname with a netname.

The netid file field descriptions are as follows:

The operating system independent network name for the user or
host. netname has one of two formats. The format used to
specify a host is of the form:


where hostname is the name of the host and domain is the
network domain name.

The format used to specify a user id is of the form:


where uid is the numerical id of the user and domain is the
network domain name.

The numerical id of the user (see passwd(5)). When specifying
a host name, uid is always zero.

The numerical id of the group the user belongs to (see
group(5)). Several groups, separated by commas, may be
listed for a single uid.

The local hostname (see hosts(5)).

Blank lines are ignored. Any part of a line to the right of a `#' symbol
is treated as a comment.


Example 1: A sample netid file.

Here is a sample netid file:

unix.789@West.Example.COM 789:30,65
unix.123@Bldg_xy.Example.COM 123:20,1521
unix.candlestick@campus1.example.NET 0:candlestick


groups file

hosts database

netname database

password file

public key database


netname2user(3NSL), secure_rpc(3NSL), group(5), hosts(5),
nsswitch.conf(5), passwd(5), publickey(5)

November 22, 2021 NETID(5)