On Tue, 17 Apr 2012 05:43:41 -0400 Dave McMurtrie wrote:
> strace the server and find out what it's doing.  Look at the logs on the server.  Run netstat to confirm both sides still have an established connection and that iptables isn't silently dropping packets, etc.

No iptables active, due to private net.

On the mupdate server:

mupdate-febe.intern.tu-berlin.de.mupdate eg-mailfrontend-febe.intern.elgouna.tu-berlin.de.40536 14656      0 49248      0 ESTABLISHED
mupdate-febe.intern.tu-berlin.de.mupdate eg-mailfrontend-febe.intern.elgouna.tu-berlin.de.40537 14656      0 49248      0 ESTABLISHED
mupdate-febe.intern.tu-berlin.de.mupdate eg-mailfrontend-febe.intern.elgouna.tu-berlin.de.40538 69568      0 49248      0 ESTABLISHED
mupdate-febe.intern.tu-berlin.de.mupdate eg-mailfrontend-febe.intern.elgouna.tu-berlin.de.40539 64128      0 49248      0 ESTABLISHED

On eg-mailfrontend:

[root@eg-mailfrontend elsnccpa]# netstat | grep mupdate
tcp        0      0 eg-mailfrontend-febe.:40538 172.26.17.69:mupdate        ESTABLISHED
tcp        0      0 eg-mailfrontend-febe.:40536 172.26.17.69:mupdate        ESTABLISHED
tcp        0      0 eg-mailfrontend-febe.:40539 172.26.17.69:mupdate        ESTABLISHED
tcp        0      0 eg-mailfrontend-febe.:40537 172.26.17.69:mupdate        ESTABLISHED

Furthermore: If done "nanually" it seems to work:

[root@eg-mailfrontend elsnccpa]# mupdatetest -a murder mupdate-febe.intern.tu-berlin.de
S: * AUTH "CRAM-MD5"
S: * PARTIAL-UPDATE
S: * OK MUPDATE "mupdate" "Cyrus Murder" "v2.3.11" "(master)"
C: A01 AUTHENTICATE "CRAM-MD5"
S: PDE1MDY2MjE4NDkuOTI2MDg1OEBtdXBkYXRlPg==
Please enter your password:
C: bXVyZGVyIDA4OTNkYzVjNWU0NTI0OTAyZTYyMTM4NDI0OWJiNWVI
S: A01 OK "Authenticated"
Authenticated.
Security strength factor: 0
. update
. MAILBOX {13+}
user.a-1991-l {46+}
mailbackend-2-febe.intern.tu-berlin.de!default {23+}
a-1991-l lrswipkxtecda
. MAILBOX {12+}
user.a-ahmed {46+}
mailbackend-1-febe.intern.tu-berlin.de!default {22+}
a-ahmed lrswipkxtecda
. MAILBOX {25+}
user.a-ahmed.Entw&APw-rfe {46+}
mailbackend-1-febe.intern.tu-berlin.de!default {22+}
.. and so on ...


--Frank Elsner
----
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