netgroup man page on OSF1

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netgroup(4)							   netgroup(4)

NAME
       netgroup - List of network groups

DESCRIPTION
       The  netgroup  file  defines  network-wide  groups  used for permission
       checking when doing remote mounts, remote logins,  and  remote  shells.
       For  remote  mounts,  the  information  in the netgroup file is used to
       classify machines; for remote logins and remote shells, it is  used  to
       classify users.	Each line of the netgroup file defines a group and has
       the following format:

       groupname member_1 ... member_n

       Each member can be either another group name or a  combination  of  the
       host name, user name, and domain name in the following format:

       (hostname, username, domainname)

       Any  of	the  three  fields  can	 be empty, in which case a wildcard is
       assumed.	 For example, to define a group to which everyone belongs, the
       following entry could appear in the netgroup file: universal (,,)

       Field  names  that  begin with something other than a letter, digit, or
       underscore (such as ``-'') work in  the	opposite  way.	 For  example:
       justmachines (analytica,-,suez) justpeople (-,babbage,suez)

       The  machine  analytica belongs to the group justmachines in the domain
       suez, but no users belong to it.	 Similarly, the user  babbage  belongs
       to  the	group justpeople in the domain suez, but no machines belong to
       it.

       Network groups are part of the NIS database and by default are accessed
       through these files:

       /etc/yp/domainname/netgroup.dir
       /etc/yp/domainname/netgroup.pag
       /etc/yp/domainname/netgroup.byuser.dir
       /etc/yp/domainname/netgroup.byuser.pag
       /etc/yp/domainname/netgroup.byhost.dir
       /etc/yp/domainname/netgroup.byhost.pag

       These files can be created from /etc/netgroup using makedbm(8).

       Network groups may also be accessed through the /etc/nsswitch.conf file
       if the Name Service Switch is in use.

FILES
       /etc/netgroup
       /etc/nsswitch.conf
       /etc/yp/domainname/netgroup.dir
       /etc/yp/domainname/netgroup.pag
       /etc/yp/domainname/netgroup.byuser.dir
       /etc/yp/domainname/netgroup.byuser.pag
       /etc/yp/domainname/netgroup.byhost.dir
       /etc/yp/domainname/netgroup.byhost.pag

RELATED INFORMATION
       getnetgrent(3), nsswitch.conf(5), makedbm(8), ypserv(8) delim off

								   netgroup(4)
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