I think I sent this in a few days ago, but I have seen no replies as yet.
I seem to be seeing periodic corruption of my tcp.smtp.cdb file. I would
really value some input from those more knowledgable than myself b/c I am
totally stumped...
It all started when I wanted to open up SMTP to other machines on my local
network. I added this line to tcp.smtp and rebuilt the cdb:
10.0.0.:allow,RELAYCLIENT=""
Now the smtp socket seems to die or hang or something after 12-24 hours.
netstat shows it as still listening, but a telnet to port 25 will connect
but not initiate a session or respond to any commands. Applications
attempting to send mail will of course timeout waiting for a response.
Restarting qmail with `qmail restart` does NOT solve the problem, nor does
restarting the OS. Simply rebuilding the cdb with `qmail cdb` DOES HOWEVER
fix the problem immediately. So it does seem that the tcp.smtp.cbd file is
being corrupted.
I don't see anything anywhere in the logs to indicate that something bad
is happenening. I am no qmail expert so I'm about at the end of my
troubleshooting capability. Anybody who can shed some light on the inner
workings of this cdb so I can figure out why it is being corrupted?
I mean, I could always cron a `qmail cdb` script and probably avoid the
issue, but I hate not get down to the root cause.
My qmail setup is pretty plain vanilla - configured according to the
advice in "living with qmail". It was running fine for several weeks
before I made this change, although I was not really using SMTP then.
Thanks!
- josiah
