NETGROUP(5)             COMMAND REFERENCE             NETGROUP(5)



NAME
     netgroup - list of network groups

DESCRIPTION
     The command netgroup defines network-wide groups, used for
     permission checking when doing remote mounts, remote logins,
     and remote shells.  For remote mounts, the information in
     netgroup 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 format

          groupname member1 member2 ....

     where member1 is either another group name, or a triple:

          (hostname, username, domainname)

     Any of three fields can be empty, in which case it signifies
     a wildcard.  Thus

          universal (,,)

     defines a group to which everyone belongs.  Field names that
     begin with something other than a letter, digit or
     underscore, such as a minus sign ( - ) work in the opposite
     fashion. For example, consider the following entries:

          justmachines      (analytica,-,sun)
          justpeople        (-,babbage,sun)

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

     Network groups are contained in the Yellow Pages and
     accessed through the files listed.  Note that in each case,
     domainname is the name of your domain (host).

     /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).

FILES
     /etc/netgroup




Printed 3/13/89                                                 1

NETGROUP(5)             COMMAND REFERENCE             NETGROUP(5)



CAVEATS
     When the netgroup is invalid getnetgrent(3n) does not change
     the argument to a null pointer; instead, getnetgrent returns
     0 indicating end-of-group; setnetgrent(3n) does not give a
     return value or reset the netgroup pointer to null (no
     message is given for failure) and will only work properly if
     domainname(1) is defined, if portmap(8c) is running, and if
     the Yellow Pages are running and have executed a ypbind(8).

SEE ALSO
     domainname(1), getnetgrent(3), exportfs(8), makedbm(8),
     ypbind(8), ypserv(8), and ypset(8).











































Printed 3/13/89                                                 2

%%index%%
na:336,85;
de:421,2601;
fi:3022,98;
ca:3528,819;
se:4347,341;
%%index%%000000000095