Limits on number os ssh users? X users?

[John Macdonald]

On Wed, Feb 15, 2006 at 09:19:12PM -0500, James Knott wrote:
> William O'Higgins Witteman wrote:
> > Are there limits to how many users can be logged in at once to a Linux
> > box via ssh?  Are there limits for X sessions?  Or is it just hardware
> > and bandwidth?  If the limits are in hardware, how many users would be
> > likely before performance issues or memory outages stopped the increase?
> > 
> > There's no real reason for the question, just curious.
> 
> In recent versions of Linux, you're limited to only 4 billion users,
> though I doubt you'd want them all to connect at the same time.  ;-)

The number of users that can have their own account is
a separate issue from the original question.  I'm often
logged into my single account in multiple sessions at once,
so the limit is 4 billion times the number of session for each
user. :-)

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