[NTLUG:Discuss] SSH Confusion

[MadHat]

On Mar 2, 2004, at 12:01 PM, Chris Cox wrote:
> MadHat wrote:
>> On Mar 1, 2004, at 6:40 PM, Chris Cox wrote:
>>> MadHat wrote:
>>>
>>>> The issue has something to do with the TTYs (more specifically 
>>>> PTYs) as far as I can tell.  Anyone know of a way to see what PTYs 
>>>> are available for allocation or what PTYs the OS think are in use?
>>>
>>>
>>> /proc should have the info on what are in use (can be seen with ps).
>>> Number of ptys defaults to 256 (or was it 128?) in the kernel config.
>> Well, it is 256, but it appears that they are not getting released, 
>> but they are not showing up in ps, but sshd can't allocate them.
>
> Maybe your sshd is looking for old style pty's instead??
> Does it work somewhat... or not at all??

It was working fine, then stopped.  I could not get sshd to give me a 
shell, it just closed.  I could exec bash and get a shell, but without 
the proper terminal controls.  This happened after a few weeks of 
uptime and had to have the box rebooted to fix it.  I am not 100% sure 
it is the PTY issue, but from what I have been able to find and from 
basic debugging, it looks like that is the issue.  I just now upgraded 
openssh, so maybe that will fix it.  I just could not find a lot of 
info to support my suspicions.