"David McCormack" <nospam@zamang.co.uk> wrote in message
news:1080856078.14863.0@iris.uk.clara.net...
> "Frank da Cruz" <fdc@columbia.edu> wrote in message
> news:slrnc6me86.pfr.fdc@sesame.cc.columbia.edu...
>
> > On 2004-03-31, David McCormack <nospam@zamang.co.uk> wrote:
> >
> > : I'm using a downloaded binary version of ckermit version 8.0.209 on a
> > : SCO OpenServer box (v. 5.0.6). The kermit executable was downloaded
> > : from the main http://www.columbia.edu/kermit/ web site.
> > :
> > : If we have 10 or more than users logged in to our SCO OpenServer box
> > : (but only one is running kermit) then kermit will fail to run the
> external
> > : ssh client. The error that gets displayed is;
> > :
> > :: No such file or directory
> > : Can't connect to ssh -e none -l root <hostname>
> > :
> > : If you have 9 users connected then ssh gets run correctly. This is
with
> > : exactly the same configuration file. What is bizarre is that if 9
people
> > : are logged in you are running kermit, ssh will work. If 10th user logs
> > : in, whilst you're in kermit, ssh will fail. If the number of users
> > : connected goes back down to 9 or less, ssh will start working again.
> > :
> > : Does anyone have any ideas what's causing this or what areas I should
> > : check? It seems more SCO related then kermit though.
> >
> > Sounds like you're running out of PTYs (pseudoterminals). I imagine
there
> > is a way to create more, but I'm not an OSR5 sysadmin expert.
>
> Not sure if a previous attempt to send this message worked as I've been
> having problems with my news server, but just in case.
>
> Altering the number of PTYs available from 96 to 256 made no difference.
>
> I've been looking around at some possible other ideas of which limitation
in
> SCO I'm running across. It's not linked to the ttyp device as I've been on
> ttyp14 and it still only works if there are less than 10 people logged in.
> The only thing I can find that appears it could have an effect are
> somethings called 'semophores' that are used for inter-task communication
> occuring to a Google search.
>
> Kind of flying blind on this though as I can't see any messages in any of
> the log files as to any problems.
Trying bumping up the shared memory parameters. One of them SHMMAX is
only 10 by default.
Bob