Re: 64K User Barrier on Linux

Tom (tomsdf.com)
Wed, 24 Nov 1999 19:06:54 -0800 (PST)

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On Wed, 24 Nov 1999, Ken Gunderson wrote:

> Greets All:
>
> I was talking with a guy today who mentioned that their server would soon
> max out at 64K users. They said it was a Linux thing and were looking at
> other Unix clones. The only reason I see this maxing out here is if they
> were authenticating via passwd, yet I assume they would be using POP before
> SMTP and an SQL database. Is there some other factor that's eluding me
> here? (They're running qmail)
>
> Ciao--Ken
> http://www.y2know.org/safari/
>
> FreeBSD- Viagra for your server ;^)

  Uids on many systems are limited to 16 bits. If each user is
given a uid, you will run out at 64K-1.

Tom

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