dovecot - Nov 2010 - Dovecot ldap connection reconnecting after inactivity

Hi people, I have a setup configured using ldap, I have noticed that after a
period of user inactivity if a client open connections to dovecot first
attemps fails with this:

Nov 16 19:34:43 cl05-02 dovecot: auth: Error:
ldap(user at xxx.xx.xx,172.29.13.26):
Connection appears to be hanging, reconnecting

After the connections to ldap has been restablished everything starts
working ok, is this a expected behavior or I'm missing something??

Best regards

On Tue, 2010-11-16 at 20:48 -0400, Aliet Santiesteban Sifontes
wrote:
> Hi people, I have a setup configured using ldap, I have noticed that after
a
> period of user inactivity if a client open connections to dovecot first
> attemps fails with this:
> 
> Nov 16 19:34:43 cl05-02 dovecot: auth: Error:
> ldap(user at xxx.xx.xx,172.29.13.26):
> Connection appears to be hanging, reconnecting
> 
> After the connections to ldap has been restablished everything starts
> working ok, is this a expected behavior or I'm missing something??
You have a firewall or something that drops the connection after it has
been idling for a while. And when Dovecot continues trying to send
another LDAP request, it simply drops the packets instead of even
bothering to reject them. Not good.