Date: Mon, 12 Apr 1999 09:22:48 -0700 From: Cy Schubert <cschuber@uumail.gov.bc.ca> To: Jeff Aitken <jaitken@aitken.com> Cc: max@ukonline.net (Max Booth), freebsd-stable@FreeBSD.ORG Subject: Re: inetd problems Message-ID: <199904121623.JAA00672@passer.osg.gov.bc.ca> In-Reply-To: Your message of "Mon, 12 Apr 1999 12:12:36 EDT." <199904121612.MAA01726@eagle.aitken.com>
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In message <199904121612.MAA01726@eagle.aitken.com>, Jeff Aitken
writes:
> Max Booth writes:
> > Escape character is '^]'.
> > inetd in realloc(): warning: junk pointer, too low to make sense.
> > inetd in free(): warning: junk pointer, too low to make sense.
> > Connection closed by foreign host.
>
>
> I've seen this before, on a 2.2.6 system. IIRC, the answer from
> Jordan was that there was a subtle but in inetd (or triggered by
> inetd) which caused this sort of memory problem. I don't recall
> whether killing and restarting inetd was enough to "fix" it or if
> it required a reboot.
>
> I'm fairly certain that it didn't represent a security problem.
This is what I originally did to circumvent the problem. Please
don't laugh., it's low tech.
In cron:
*/10 * * * * /usr/local/sbin/checkinetd
In services:
ckinetd 4321/tcp # checkinetd
In inetd.conf:
ckinetd stream tcp nowait nobody /bin/echo echo 220
Install the netcat port.
checkinetd:
#!/bin/sh -
case `/usr/local/bin/nc localhost ckinetd` in
220)
;;
*) cd /
INETD_PID=`/bin/cat /var/run/inetd.pid`
/usr/bin/logger -p daemon.error inetd junk pointers,
killing and restarting inetd PID $INETD_PID
/bin/kill $INETD_PID
/bin/sleep 3
/usr/sbin/inetd
/bin/sleep 1
/usr/bin/logger -p daemon.notice inetd junk pointers,
restarted inetd PID `/bin/cat /var/run/inetd.pid`
;;
esac
Regards, Phone: (250)387-8437
Cy Schubert Fax: (250)387-5766
Open Systems Group Internet: Cy.Schubert@uumail.gov.bc.ca
ITSD Cy.Schubert@gems8.gov.bc.ca
Province of BC
"e**(i*pi)+1=0"
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