[2.3.1] Sieve daemon : closes connection at once on some conditions (?)

[Ken Murchison]

Vincent Deffontaines wrote:
> Greetings,
> 
> I am having a quite weird behaviour from the sieve daemon.
> 
> I have in my config (SERVICES) :
> sieve         cmd="timsieved" listen="sieve" prefork=0
> 
> The daemon listens fine on TCP port 2000.
> 
> If I telnet to localhost on port 2000, I get :
> Trying 127.0.0.1...
> Connected to sexa-mail1.ecn.loc.
> Escape character is '^]'.
> "IMPLEMENTATION" "Cyrus timsieved v2.3.1"
> "SASL" "PLAIN"
> "SIEVE" "comparator-i;ascii-numeric fileinto reject vacation imapflags
> notify envelope relational regex subaddress copy"
> "STARTTLS"
> OK
> 
> Which I am happy with.
> 
> If I telnet from another box from the same network (10.0.0.0/8), I get the
> same prompt.
> 
> If I telnet to it from a host on another network (dmz - 192.168.X) :
> Trying 10.1.122.49...
> Connected to sexa-mail.ecn.loc.
> Escape character is '^]'.
> Connection closed by foreign host.
> 
> The connection opens, and gets closed straight away.
> So this is not a firewall nor a routing problem. I get in the logs on  the
> sieve server :
> Feb 15 23:20:25 sexa-mail1 master[26216]: about to exec
> /usr/cyrus/bin/timsieved
> Feb 15 23:20:25 myhost sieve[26216]: executed
> Feb 15 23:20:25 myhost sieve[26216]: telling master 2
> Feb 15 23:20:25 myhost sieve[26216]: accepted connection
> Feb 15 23:20:25 myhost sieve[26216]: telling master 3
> Feb 15 23:20:25 myhost master[17464]: service sieve pid 26216 in READY
> state: now unavailable and in BUSY state
> Feb 15 23:20:25 myhost master[17464]: service sieve now has 0 ready workers
> Feb 15 23:20:25 myhost master[17464]: service sieve pid 26216 in BUSY
> state: now serving connection
> Feb 15 23:20:25 myhost master[17464]: service sieve now has 0 ready workers
> Feb 15 23:20:25 myhost master[17464]: process 26216 exited, status 0
> Feb 15 23:20:25 myhost master[17464]: service sieve now has 0 ready workers
> 
> So the process just closes the connection and exits with status 0.
> 
> Is there some config option that I don't know of?
> Is there something obvious I am not seeing?
> Why is there no prompt when connecting from that host?

Are you using TCP wrappers or something?  Is some other process (xinetd) 
listening on port 2000?

-- 
Kenneth Murchison
Project Cyrus Developer/Maintainer
Carnegie Mellon University