Max users in a group ?

UNIX AIX
1

Hi All,

Does anyone know if there is a maximum limit to the number of users that can be assigned to a group. I currently have on a production server 900+ users in 1 group. I know some of these users are no longer valid as we only have 500 employees and not all employees use this application.

We need to have these users as the application requires a valid Unix user to authenticate against.

Thanks in advance,

Andrew.

2

Got an answer from IBM, the number is 2000 and is set in /usr/include/grp.h.

3

Thanks for the answer.

Is the 2000 a default, maximum or alterable?

Is that for all levels of AIX or version specific?

4

2000 is the default, IBM did not indicate if this value can be changed. As we only have AIX 5.3 here there was no need to ask if this limit is specific to 5.3.

The /usr/include/grp.h file can be edited so you could check it on other versions of the OS.

#define MAXGRP 2000
On a 5300-05-06 machine.

5

Thank-you again anmiller, for the full story.

The times I've found a problem description without a solution, or just a partial solution, drives you mad......