Re: Telnet Problem

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These tools all seem to show the active ports / sockets. The more
interesting question would be how many more sockets the system would be
able to open in a certain situation, eg. when an application connects
to the status port. But I wouldn't know a Windows tool that shows that.


Andreas Füchsel wrote:
> Another freeware utility is Cport http://www.nirsoft.net/utils/cports.html
> Im using it manytimes especial against maleware (has the ability to kill bad 
> tasks not shown in taskmanager!)
> 
> greetings, andy
> 
> -----Ursprüngliche Nachricht----- 
> Von: "Edson" <4lists@xxxxxxxxx>
> An: "'GNU Gatekeeper Users'" <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx>
> Gesendet: Mittwoch, 12. Dezember 2007 19:17
> Betreff: Re:  Telnet Problem
> 
> 
> > You could try Aports (http://www.download.com/3000-2085-10062969.html).
> >
> > In Your case it seems to worth a try, but be aware that this is indicated
> > only for checks, not for constant run, since Symantec advise the 
> > possibility
> > of use by some malwares... :(
> > (http://www.symantec.com/security_response/writeup.jsp?docid=2003-092411-292
> > 1-99)
> >
> > Edson
> >
> >>-----Original Message-----
> >>From: openh323gk-users-bounces@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-
> >>users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Nyamul Hassan
> >>Sent: quarta-feira, 12 de dezembro de 2007 15:50
> >>To: GNU Gatekeeper Users
> >>Subject: Re:  Telnet Problem
> >>
> >>Hi Jan,
> >>
> >>Thank you for your suggestions, and I would definitely try them out.  I'm
> >>using Windows Server 2003.  Do you recommend any software to monitor the
> >>number of sockets open at a particular time?  I've got a Nagios unit on my
> >>network.  Is it possible to monitor the number of sockets open through
> >>Nagios?
> >>
> >>Regards
> >>HASSAN
> >>
> >>
> >>----- Original Message -----
> >>From: "Jan Willamowius" <jan@xxxxxxxxxxxxxx>
> >>To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx>
> >>Sent: Wednesday, December 12, 2007 14:31
> >>Subject: Re:  Telnet Problem
> >>
> >>
> >>> Hi Hassan,
> >>>
> >>> please let us know what you find.
> >>>
> >>> I've seen a similar case where a GnuGk 2.2.7 on Linux would stop
> >>> statusport output under high load (~500 calls) while another machine
> >>> (same hardware, same GnuGk version) would still send all output under
> >>> the same load.
> >>>
> >>> In this case it would stop after a few hunderd KB and so far I didn't
> >>> find why. If you run tests, it would be good if you could monitor
> >>> system resources such as sockets etc. Maybe we can find a pattern when
> >>> this is happening.
> >>>
> >>> Regards,
> >>> Jan
> >>>
> >>>
> >>> Nyamul Hassan wrote:
> >>> > Hi,
> >>> >
> >>> > Aroung a year ago, I had reported a problem with the new 2.2.5 branch
> >>(running on Windows Server 2003) that there was a problem with the telnet
> >>not working if the output 10kb (output of the cv command).  This problem
> >>was
> >>subsequently looked into my Michal, and improved in the 2.2.6 version 
> >>where
> >>a telnet from the localhost (Windows Server 2003) was running ok. 
> >>However,
> >>from remote windows sytems, running both PuTTY and Microsoft clients, I
> >>still get logged off after 10kb of content.
> >>> >
> >>> > I then went on writing a PHP scrit that does a socket connection on 
> >>> > the
> >>GkStatus port and gets the output of "cv" command every 30 seconds.
> >>> >
> >>> > Today, the PHP script failed when the load was around 280+ calls
> >>(connected + trying).  Running the regular Microsoft telnet client, I
> >>couldn't get more than exactly 36kb of data, although my PHP clients 280+
> >>calls indicated at least 2.5 times that size was received nicely.
> >>> >
> >>> > The load has reduced now, so can't run tests now.  When the load comes
> >>later today, I plan to do the following:
> >>> > 1.  Try a local PuTTY client
> >>> > 2.  Try a level 6 trace when the "cv" command is run from both remote
> >>and local clients.
> >>> >
> >>> > In the meantime, if any of you guys out there have any more
> >>suggestions,
> >>please let me know.
> >>> >
> >>> > BTW, this used to work fine in 2.2.4, and we've seen call loads higher
> >>than 350.  The only problem in that version was the EXE file used to grow
> >>in
> >>size gradually.  So, had to restart the GK every 2 - 3 days, depending on
> >>call load.  Since 2.2.5, the memory problem has been solved beautifully.
> >>My
> >>GK is running for 34 days 04:26:44 at this time of writing.
> >>> >
> >>> > Thank you all, for your help.
> >>> >
> >>> > Regards
> >>> > HASSAN
> >>>
> >>>
> >>> --
> >>> Jan Willamowius, jan@xxxxxxxxxxxxxx, http://www.gnugk.org/
> >>>
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> >>
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-- 
Jan Willamowius, jan@xxxxxxxxxxxxxx, http://www.gnugk.org/

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