Max UID's on RHEL 3
Esquivel, Vicente
Esquivelv at uhd.edu
Wed Jul 5 13:37:38 UTC 2006
Thanks for the reply, I see what you mean in saying that it might have
been like that. Which is what prompted my question because I wasn't
sure if it had changed now.
Anyone else have any input?
Vince
> -----Original Message-----
> From: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com] On Behalf Of Wayne Pinette
> Sent: Tuesday, July 04, 2006 2:23 PM
> To: redhat-list at redhat.com; Esquivel, Vicente
> Subject: RE: Max UID's on RHEL 3
>
> The following is nothing more than a guess and speculation :
>
> <speculation type="mine">
>
> It may be a throw back to the days when an int was 16 bit and
> userid's were an unsigned int in the kernel (65535 being your
> largest uid). I seem to recall an annoyance/bug in the NeXT
> OS in which the userid was defined as a signed int so the max
> uid was 32767, and nfs'ing between NeXT and Sun could be
> problematic if you had a userid of 44569, but I digress.
>
> If this is in fact nothing more than a throw back, and uid in
> the linux kernel is now a long or unsigned long, then you
> will be able to have userid's up to 2^31 -1 or 2^32 -1. Im
> too lazy to look, maybe someone else knows.
>
> </speculation>
>
> Other than that, I have no idea :-).
>
> Wayner
>
>
> >>> Esquivelv at uhd.edu 07/04/06 12:13 pm >>>
> I think I might have found the answer on my own, I tested my
> RHEL 3 server and I was able to increase the UID_MAX to
> almost any number I wanted and I was able to create accounts.
> The server kept on automatically assigning UID's to the
> accounts and I was able to login with the accounts just fine.
> I got all the way up to like 12345678901 as a uid and it
> allowed me to assign it.
>
> Anyone have any input on this at all good or bad about huge
> amounts of accounts on a server?
>
> Thanks all
>
> Vince
>
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com
> > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Esquivel,
> Vicente
> > Sent: Monday, July 03, 2006 10:57 PM
> > To: General Red Hat Linux discussion list
> > Subject: Max UID's on RHEL 3
> >
> > Hello all,
> >
> > Is it possible to have more then 60,000 UID's(user
> accounts) assigned
> > on a RHEL ES 3.0 system? The systems by default has a UID_MAX of
> > 60,000 in the login.defs file. Is it possible to have
> more, if so how
> > many is the true max? What changes would I have to make to
> the system
> > to accept more? I hope someone can help as this is
> something we have
> > run into and need to try to fix promptly. Any advice on
> this would be
> > greatly appreciated.
> >
> > Thanks all in advance
> >
> > Vince
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request at redhat.com?subject=subscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>
More information about the redhat-list
mailing list