On Thu, May 23, 2002 at 08:15:26AM -0500, Trey Nolen wrote:
> I agree, but with the -R -H and -l0 options on tcpserver, it shouldn't be
> looking up anything, right?  The problem also happens at the same time from
> all machines (ones that work normally).  This machine runs Bind 8, and has
> done so since it was put into service.  There are no special options in the
> config file for bind. Do you have any recommendations for options that might
> improve DNS performance for a mail server?

djbdns? :-)

Anyway, back to your problem. Nothing beats strace for finding out things.

Why don't you:

"strace -o /tmp/strace.log -f -p <PID of tcpserver for qmail-smtpd>"

[that's for Linux. Figure it out for other OSes]

Then "telnet localhost 25" and observe the hang. Then exit strace and edit
/tmp/strace.log and see where it was hanging.


-- 
Cheers

Jason Haar

Information Security Manager
Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417

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