Putty Disconnects

[rphips]

Good Day

Here is the setup -

I have a 2 T1s connected to a Nortel router for a divese connection(programmed by Verizon who swear it is provisioned correctly). The Nortel router is connected to a SonicWall TZ190 which in turns points all traffic to the SUSE Linux box thea telnets into my Cache server based upon your authentication.

The Problem -

The users log into our order entry screen via Putty and after 1 or 2 pages Putty freezes up.

This only occurs on the diversified T1s - if I have them use our other T1 (ATX) it works fine.

Any suggestion on what may be going on?

bob

 

[elgrandeperro]

First thing I would change is the ClientAliveInterval on the ssh daemon. This sends a null byte every ClientAliveInterval seconds. Helpful when going through a firewall.

 

[rphips]

elgrandeperro

Where is it? I check all over Putty 6 and cannot find ClientAliveInterval only thing I can find is KeepAlives - and I have them set to 3 seconds but that's not what is causing the problem - the user is in a Putty interface and it just freezes.

bob

 

[elgrandeperro]

Not client, daemon side.

 

[victorv]

hi,
at a customer site, when from my pc (win) make a telnet to
unix box (AIX) using wireless lan, after 1 minute it hangs.

Using the cable, this does not happen.

I cannot indagate more, at the customer,
and I use the cable!

bye
victor

 

[elgrandeperro]

You will have to consult the logs (or get some one) of all the network hardware. This type of problem cannot be debugged by the client or the server because all they know it dropped somewhere in the middle.

Note the time, the relevant IPs, ports, and give it to someone in charge of the network.

 

[stfaprc]

In the Putty Configuration,
there is a Catagory called Connection

The last option is
"Sending of NULL packets to keep session active"