Can only login via ssh 1013 times.

Can only login via ssh 1013 times.

[war]

Before you read this, I just wanted to see how many times I could login.

I would never need 1000+ users support, but others may need it.

So I was just curious to see how many times I could login with ssh
version 1.
I put in 2048 for the number of ptys allowed for the kernel options,
recompiled and installed.

I made a little expect script which would log me in the next time
I login and so on and so forth.
After I logged in 1013? times or so it said "you are out of ptys..."

Once again I have no need for this amount of users, but I was curious,
how many simultaneous users can be logged on to a linux box at one time?

I'll guess @ 1024 considering I had some xterm's open.

Anyone?

Re: Can only login via ssh 1013 times.

[Marcus Meissner]

In article <3BC60B59.71F0367A@starband.net> you wrote:
> Before you read this, I just wanted to see how many times I could login.

> I would never need 1000+ users support, but others may need it.

> So I was just curious to see how many times I could login with ssh
> version 1.
> I put in 2048 for the number of ptys allowed for the kernel options,
> recompiled and installed.

> I made a little expect script which would log me in the next time
> I login and so on and so forth.
> After I logged in 1013? times or so it said "you are out of ptys..."

> Once again I have no need for this amount of users, but I was curious,
> how many simultaneous users can be logged on to a linux box at one time?

> I'll guess @ 1024 considering I had some xterm's open.

> Anyone?

You maximum of open files is too low.

Increase the value /proc/sys/fs/file-max (check current usage in file-nr).

Ciao, Marcus

Re: Can only login via ssh 1013 times.

[Dan Hollis]

On Thu, 11 Oct 2001, Marcus Meissner wrote:
> You maximum of open files is too low.
> Increase the value /proc/sys/fs/file-max (check current usage in file-nr).

Maybe kernel could printk a warning when file-max (or other) limit is
reached...?

-Dan
-- 
[-] Omae no subete no kichi wa ore no mono da. [-]

Re: Can only login via ssh 1013 times.

[Andreas Ferber]

Hi,

On Thu, Oct 11, 2001 at 02:46:51PM -0700, Dan Hollis wrote:
> 
> Maybe kernel could printk a warning when file-max (or other) limit is
> reached...?

It is already done:

,----[ fs/file_table.c ]-
| [...]
| } else if (files_stat.max_files > old_max) {
|         printk(KERN_INFO "VFS: file-max limit %d reached\n", files_stat.max_files);
|         old_max = files_stat.max_files;
| }
| [...]
`----

Andreas
-- 
       Andreas Ferber - dev/consulting GmbH - Bielefeld, FRG
     ---------------------------------------------------------
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