NAME    [Toc]    [Back]

       netgroup - List of network groups

DESCRIPTION    [Toc]    [Back]

       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    [Toc]    [Back]

       /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    [Toc]    [Back]

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



                                                      netgroup(4)