Hi,

Wouldn't 'UseDNS no' in /etc/ssh/sshd_config do it?

Best regards,
Pieter Harder

pieter.har...@brabantwater.nl
tel  +31-73-6837133 / +31-6-47272537

-----Oorspronkelijk bericht-----
Van: Linux on 390 Port [mailto:linux-...@vm.marist.edu] Namens Agblad Tore
Verzonden: dinsdag 3 augustus 2010 16:14
Aan: LINUX-390@VM.MARIST.EDU
Onderwerp: iucvconn with invalid DNS in target server problem

Hi, we have a problem that should not be a problem.

I have installed SLES11 SP1 and have configured the Terminal Server
concept using IUCV as transport for logging in.
Works great but for one 'tiny' little thing.

When logging in the orginial login pgm is called (ssh) and
ssh uses DNS servers to do lookups of ip-addresses.
If no answer from DNS server(s) the timeout is longer than
the timeout from iucvconn, thus resulting in a timeout
from iucvconn when trying to login = No login.

For us the main purpose for IUCV Connect is then there is
some network problem, firewall or bad config or...., and
in this case it is impossible to login via IUCV.  :((

So we can only use it when we don't need it.....

Any suggestion ???
(Besides my own script solution to check DNS at network start
  and disables DNS by creating an empty /etc/resolv.conf)


___________________________________________
Tore Agblad
Volvo Information Technology
Infrastructure Mainframe Design & Development, Linux servers
Dept 4352  DA1S
SE-405 08, Gothenburg  Sweden

Telephone: +46-31-3233569
E-mail: tore.agb...@volvo.com

http://www.volvo.com/volvoit/global/en-gb/

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