Perdition-users July 2011

perdition-users@vergenet.net

5 participants
4 discussions

Zombie pop3s (and imaps?) processes in connect state

by Christian Balzer

Hello, we've been using perdition as a pop3/pop3s/imap/imaps proxy for about four years now, first with Debian Sarge package and now under Etch. And throughout this time I've seen pop3s (and from the looks of it the same happens with imaps) processes stuck in connect, like this: --- 16836 ? S 5:31 0 120 32179 2204 0.0 perdition.pop3s 28070 ? S 0:00 0 120 32311 1564 0.0 \_ perdition.pop3s: connect 7782 ? S 0:00 0 120 32311 1564 0.0 \_ perdition.pop3s: connect 24468 ? S 0:00 0 120 32311 1568 0.0 \_ perdition.pop3s: connect 14180 ? S 0:00 0 120 32311 1568 0.0 \_ perdition.pop3s: connect 13503 ? S 0:00 0 120 32311 1564 0.0 \_ perdition.pop3s: connect --- They never die off, keep the connection open, there is no traffic and the other end might be long gone. Last trace in the logs is always like this: --- Feb 5 22:05:16 pp11 perdition[7782]: Connect: hi.mi.ts.u->203.216.5.113 --- It must be something related to the SSL'ness of these service, since I'm not seeing this happening ever for imap/pop3. Alas a lot of people do use TLS with those, so it's not a generic SSL issue. Maybe the master process could kick a child handling connections in the head after "timeout" seconds in connect state? If more information is needed I can try to provide it, but note that with a rate of roughly 35 pops per second I'm a bit weary to turn on debugging. ^_- This may or may not be related to another SSL related issue, which will be for the sake of making searches in the archive more likely to find good keywords in a separate mail. Regards, Christian -- Christian Balzer Network/Systems Engineer NOC chibi(a)gol.com Global OnLine Japan/Fusion Network Services http://www.gol.com/

11 years

Managesieve segfault bug. Test case and work around included

by Steven Kurylo

Hi, I've tried perdition_1.19~rc4-3 but I still get a segfault. I'm running cyrus 2.4.8, and I can avoid the segfault under two scenarios: 1) With "sasl_mech_list: LOGIN PLAIN" and "allowplaintext: no" in my cyrus config 2) With "sasl_mech_list: PLAIN" and "allowplaintext: yes" in my cyrus config In my environment, we have a client which can't do TLS, so a special sieve daemon which allows plaintext listens on local host for it. Originally #2 also offered LOGIN and I that's how I ran into the segfault. It seems to be something in the sieve banner parsing. I've made a python script to act as a sieve server (see attached): ./server.py Then I run perdition: perdition.managesieve -d --no_daemon --listen_port=2006 -C --outgoing_server=127.0.0.1:2005 -f '' --pid_file /tmp/sieve.pid Then I telnet to 2006 and paste : AUTHENTICATE "PLAIN" "<real auth string>" I either get an OK or a segfault in perdition. server.py will cycle through the specified banners, so you can continue to telnet to try each banner test case out. Let me know if you need any further information. Thanks. -- Steven Kurylo

12 years, 2 months

Managesieve segfault bug. Test case and work around included

by Steven Kurylo

12 years, 4 months

Monitoring Perdition services?

by Todd Taylor

A client is interested in using Perdition during a migration project and would like to monitor it using SNMP if possible. I've not seen any mention of support for it, but wondered if anyone else might know. Also, would you have any other recommendations on how to monitor Perdition services. Thanks, Todd

12 years, 5 months

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Perdition-users July 2011