topic Re: Telnet Hangs in Operating System - HP-UX

Telnet Hangs

Izzo_1 — Sun, 04 Dec 2005 13:39:37 GMT

Hi everyone

When I try to telnet from a different subnet the telnet session hangs after writing "please wait... checking disk quota".

On the other hand when I log from the same subnet as the server the telnet session continues with no problems.

Is there any configuration options on the telnet for accepting or processing connections from different subnets?

Re: Telnet Hangs

James R. Ferguson — Sun, 04 Dec 2005 14:25:27 GMT

Hi Izzo:

Well, how long is a long wait? You could check times of network traversal with a series of 'ping's and/or a traceroute.

Regards!

...JRF...

Re: Telnet Hangs

Steven E. Protter — Sun, 04 Dec 2005 16:05:59 GMT

Shalom Izzo,

I have a suggestion.

Go to the server console, log on as root.

tail -f /var/adm/syslog/syslog.log

Then try your telnet login from a normal network workstation.

You may see something useful or an error that tells you about a kernel parameter you need to adjust.

Bottom line is telnet is accepting the connection and creating a telnetd session on the server. What happens after that could be any number of circumstances.

Posting suggestion:
server type and model:
How much RAM:
OS version
Recent major patch set instatlled:

Makes it much easier to answer questions with that information.

I've seen this happen on the 2003 Core OS simply because it needs a major network and SD/UX patch to run properly on older systems.

SEP

Re: Telnet Hangs

Peter Nikitka — Mon, 05 Dec 2005 03:20:30 GMT

Hi,

is the HOME of the user NFS-mounted?
Then you can try to isolate the problem without logging in to that user.
Check
- NFS access options
- manual mounting
- NFS access rights
- access to the history file (if used)

Generally an update of NFS-patches is always worth to try.

mfG Peter

Re: Telnet Hangs

Muthukumar_5 — Mon, 05 Dec 2005 03:35:50 GMT

May be a problem with network only.

Check these:

with same network:

1) ping response rate to hpux server
2) traceroute / tracert(windows) to hp-ux server

different subnet:

1) ping response rate to hpux server
2) traceroute / tracert(windows) to hp-ux server

post those information.

hth.

Re: Telnet Hangs

Frank de Vries — Mon, 05 Dec 2005 04:35:08 GMT

If telnet works , but not from a different
subnet - that to me indicates something with the routing, in particular I would check
the gateway(s).

Can you do a ping from this subnet to that
host that you are trying to telnet ?

Can you maybe post your
ifconfig lan0 and netstat -nr
if allowed.

Rgds

Re: Telnet Hangs

Steve Steel — Mon, 05 Dec 2005 04:37:05 GMT

Hi

On the server what does

nsquery hosts clientname
nsquery hosts clientip

give where client is the machine on the other subnet.

To test telnet make sure inetd -l is enabled for better syslog messages

Steve Steel

Re: Telnet Hangs

Frank de Vries — Tue, 10 Jan 2006 03:47:34 GMT

Why did no point get allocated to no-one ?

Re: Telnet Hangs

Muthukumar_5 — Tue, 10 Jan 2006 04:29:58 GMT

even he did not reply back. May be a problem with disk quota allocation. It is not allocated to other subnet sessions.

--
Muthu