Networker

[Networker] More on Client behind firewall failing: Broken pipe?

2003-01-13 11:01:58
Subject: [Networker] More on Client behind firewall failing: Broken pipe?
From: Gary Goldberg <og AT DIGIMARK DOT NET>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Mon, 13 Jan 2003 10:58:15 -0500
This is a continuation of the problems I'm having backing up clients behind
SonicWALL firewalls to an NT4 based Legato 6.11 server.

I've updated the timeouts on the firewall to 999 minutes, and adjusted the MTU
value to 1404. I've also verified my access rules through the Legato whitepaper
on firewall access.

In the clients that are failing, I'm seeing this message repeating over and 
over:

(tail /opt/networker/logs/daemon.log)

01/10/03 03:52:42 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/11/03 01:33:41 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/11/03 03:52:44 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/12/03 01:33:41 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/12/03 03:52:59 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/12/03 08:31:18 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/12/03 10:50:27 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/13/03 01:33:41 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/13/03 03:52:35 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe
01/13/03 09:21:46 nsrexecd: failed to write NUL handshake on 8: errno 32, 
Broken pipe

According to the server logs, the backup completes (done saving... in the admin 
gui)
but never receives a final dismissal of some type, so an hour and a half later 
or
so, it retries the backup again, before failing with the same problem. The 
backup
tapes are full of good savesets that never recieved a "final blessing" of some 
type
because the firewall broke the pipe between client and server.

Anyone?

Thank you. -Gary

-- "We don't see things as they are, we see them as we are." - Anais Nin
Gary Goldberg KA3ZYW <og AT digimark DOT net> V:301/249-6501 F:301/390-1955 
AIM:OgGreeb
Digital Marketing/Bowie MD/Systems & Networks Consult <http://www.digimark.net/>

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