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Date:      Tue, 25 Apr 2000 06:28:13 -0400 (EDT)
From:      "Daniel Mahoney, Systems Admin" <danm@firestorm2000.com>
To:        questions@freebsd.org
Subject:   Sendmail Processes
Message-ID:  <Pine.BSF.4.10.10004250557090.63676-100000@freebsd1.firestorm2000.com>

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Hi, I'm having a problem with sendmail, and I've seen this discussed on
the list before...

Sendmail likes to start a whole bunch of processes with the same IP (I
assume this might be because of a spammer of some sort), as it mostly
comes from dialup IPs, and users who have no real reason to be relaying
mail through our system.  However, the processes stack up (and today, ate
200 megs of swap on me).

The only solution I can find to this is a killall sendmail, and then
restart it manually.

I've read the solutions proposed by setting maxdaemonchild, and also in
setting a connection throttle rate...Except that these sendmail processes
are far too many, and have been going on for the better part of all night,
so setting those variables would only shut my system down for mail anyway.

For the record, I cannot even ping the IPs in question.

What WOULD help is if sendmail had an option that could limit the number
of connections from a specific host to some reasonable number.

If anyone could tell me (A) What happens in the "startup phase" (a search
of sendmail.org proved fruitless), or (B) how to limit and/or control
these processes it would be appreciated, as right now it's requiring a
constant eye.

Here's those processes:

61961  ??  S      0:00.14 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
61986  ??  S      0:00.14 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62370  ??  S      0:00.11 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62618  ??  S      0:00.12 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62644  ??  S      0:00.08 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62691  ??  S      0:00.08 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62771  ??  S      0:00.07 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62899  ??  S      0:00.06 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
62951  ??  S      0:00.05 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
63369  ??  S      0:00.02 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma
63439  ??  S      0:00.01 sendmail: startup with h24-66-7-213.mt.wave.shaw.ca (sendma

Please send an email reply, as I'm not on the list.

Thanks,

Dan Mahoney



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