Re: rsh problem (update)

Andrew Morton (morton@nortelnetworks.com)
Sat, 28 Aug 1999 14:41:25 +0000

Kamran Karimi wrote:
>
> The problem exists in remote executions too.
>
> A simple script containing:
>
> rsh 10.0.0.1 ls
> rsh 10.0.0.1 ls
> rsh 10.0.0.1 ls
>
> ceases to work after 10 or 12 invocations. The error message is still
> "poll: protocol failure in circuit setup"
>
> This seems to be happening faster when the rshs are run concurrently by
> using & to start them.

This is caused by inetd. The service is being invoked so frequently
that it's tripping inetd's broken-server-detector. inetd drops a
message in /var/log/messages:

Aug 28 23:54:46 bix inetd[319]: shell/tcp server failing (looping),
service terminated

and shuts down the service.

You can restart the service by sending inetd a SIGHUP. You can increase
inetd's threshold for this service in /etc/inetd.conf:

shell stream tcp nowait.1000 root /usr/sbin/tcpd in.rshd

^^^^

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/