From mboxrd@z Thu Jan  1 00:00:00 1970
From: geoff@collyer.net
To: 9fans@collyer.net
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Message-Id: <20010929100230.6FEE919A64@mail.cse.psu.edu>
Subject: [9fans] dns time-outs
Date: Sat, 29 Sep 2001 03:01:08 -0700
Topicbox-Message-UUID: f6766ff6-eac9-11e9-9e20-41e7f4b1d025

My smtpd has refused a few messages (including one from 9fans),
apparently because dns couldn't resolve the sender's domain
within 60 seconds.  Looking back through the logs, this is a
new phenomenon.  This is the quick fix I'm using (relative
to /sys/src/cmd/ndb):

: cpu; diff `{yesterday dns.c} .
399c399,403
< 		req.aborttime = now + 60;	/* don't spend more than 60 seconds */
---
> 		/*
> 		 * we used to spend at most 60 seconds; that isn't long enough
> 		 * for lookups for smtpd any more.
> 		 */
> 		req.aborttime = now + 2*60;