Netgroup definitions

Since z/OS does not support the NIS environment, z/OS NFS can only support netgroups defined in the local /etc/netgroup file. z/OS NFS assumes the same file record length restriction as for the NIS environment (that is, a maximum size of 1024 bytes). A netgroup cannot have a client id list longer than 1024 characters. z/OS NFS assumes the same wildcard character ('*' and '?') restrictions as the NIS environment (that is, no wildcard character specification as part of a netgroup name, nor as part of client host names specified in a netgroup file).

z/OS NFS also assumes that the local netgroup file contains netgroup information without the NIS "+" token. In other words, the local netgroup file does not contain any LOCAL netgroup information and all network netgroup information put into the file from the NIS data base without the NIS "+" token. Any "+" tokens encountered are ignored.

Here is an example of some sample local netgroup files:

# /etc/netgroup local file.
#
LocalAdmins (,root,)
NetAdmins (sonne,user1,) (sonne,user2,) LocalAdmins
Gateways (rechner1,,) (rechner7,,)

Here is another example:

# /etc/netgroup local file.
# shown one netgroup, it must contain no more than 1024 chars.

cnet2331 (bart.foobar.net,,cnet2331.foobar.net) \
         (lisa.foobar.net,,cnet2331.foobar.net) \
         (dead.foobar.net,,cnet2331.foobar.net)