Sphar, Mike wrote:
Is it possible the limit is not the number of groups, but actually the literal size of the line in the groups file? I have vague memories of running into some limits of that sort in the distant past in the unix world. That each line in the groups file could not be larger than X characters.
Yes. Our group file is structure in such a way as to avoid this limit, i.e. each line is less than X characters (I can't remember the character limit right now).