*nix Documentation Project
·  Home
 +   man pages
·  Linux HOWTOs
·  FreeBSD Tips
·  *niX Forums

  man pages->Linux man pages -> netgroup (5)              



NAME    [Toc]    [Back]

       netgroup - specify network groups

DESCRIPTION    [Toc]    [Back]

       The  netgroup file  defines "netgroups", which are sets of (host, user,
       domain) tuples, used for permission checking when doing remote  mounts,
       remote logins and remote shells.

       Each  line  in  the file consists of a netgroup name followed by a by a
       list of members. Where members is either another netgroup  name,  or  a

	      (host, user, domain)

       where the host , user , and domain are character strings for the correspoinding
 components. Any of the three fields can be  empty,  in  which
       case it specify a "wildcard", or may consist of the string "-" to specify
 "no valid value". The domain field must either be the local	domain
       name  or  empty	for the netgroup entry to be used. This field does not
       limit the netgroup or provide security. The domain field refers to  the
       domain  in which the triple is valid, not the domain containing the the
       trusted host.

       A gateway machine should be listed  under  all  possible  hostnames  by
       which it may be recognized:

	      gateway (server,,) (server-sn,,) (server-bb,,)

       The  getnetgrent  functions  should normally be used to access the netgroup

FILES    [Toc]    [Back]


SEE ALSO    [Toc]    [Back]

       getnetgrent(3), exports(5), makedbm(8), ypserv(8)

WARNINGS    [Toc]    [Back]

       The triple (,,domain) allows all users and machines trusted access, and
       has the same effect as the triple (,,). Use the host and user fields of
       the triple to restrict the access correctly to a specific set  of  members.

BUGS    [Toc]    [Back]

       The Linux libc5 does not query the /etc/netgroup file directly, it only
       querys the NIS server for the groups. So the netgroup database must  be
       stared in the form of a hashed dbm database just like the passwd(5) and
       group(5) databases.

       This manpage mentions getnetgrent(3), but it seems that manpage	hasn't
       been written yet. Since getnetgrent() is part of GNU libc it might also
       be that it is documented in info format.

AUTHOR    [Toc]    [Back]

       Thorsten Kukuk <kukuk@suse.de>

NIS				   May 1999			   netgroup(5)
[ Back ]
 Similar pages
Name OS Title
netgroup HP-UX list of network groups
netgroup FreeBSD defines network groups
netgroup OpenBSD defines network groups
netgroup Tru64 List of network groups
netgroup IRIX list of network groups
lagconfig Tru64 Configures or displays link aggregation groups (or trunk groups)
vxvmconvert HP-UX convert LVM volume groups to VxVM disk groups
setprivgrp HP-UX set special privileges for groups
groups Linux print the groups a user is in
pwconv Linux convert to and from shadow passwords and groups.
Copyright © 2004-2005 DeniX Solutions SRL
newsletter delivery service