NETGROUP(4-SVR4)    RISC/os Reference Manual     NETGROUP(4-SVR4)



NAME
     netgroup - list of network groups

DESCRIPTION
     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 net-
     group file defines a group and has the format

          groupname member1 member2 .... memberi

     where memberi is the name of another group member, unless
     the file is converted to NIS using the makedbm command and
     vis.conf is set up to use NIS to look up netgroups, in which
     case memberi must be a triple of

          (hostname, username, domainname)

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

          universal (,,)

     defines a group to which everyone belongs.  Field names that
     begin with something other than a letter, digit or under-
     score (such as ``-'') work in precisely 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 Network Information Ser-
     vice, and 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(1M).





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NETGROUP(4-SVR4)    RISC/os Reference Manual     NETGROUP(4-SVR4)



     When using NIS and makedbm, the line continuation character
     \ is allowed, but if files are used to resolve netgroups,
     the \ is not allowed.

FILES
     /etc/netgroup
     /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

SEE ALSO
     vis(4).
     makedbm(1M) in the System Administrator's Reference Manual.

ORIGIN
     Sun Microsystems




































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