Ernst Persson added the comment:
Here's another description of the issue:
http://www.tldp.org/HOWTO/NIS-HOWTO/maps.html#AEN548
There's a suggestion to have different group-names but same gids, but
automatic splitters of nis-groups doesn't allways do this.
Right, grp.getgrall()
New submission from Ernst Persson:
Nis (applications?) has a line limit in the "group" entry, so you can't
have very long lines (=many users)
The way to solve this is to put aliases in the group map, like this:
MY_GROUP::123:user1,user2
MY_GROUP::123:user3,user4
This is supp