Max UID's on RHEL 3

[Esquivel, Vicente]

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
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