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Full Discussion: Telnet session disconnects abruptly
Operating Systems SCO Telnet session disconnects abruptly Post 302951673 by sean6605 on Sunday 9th of August 2015 11:18:15 AM
Old 08-09-2015
Telnet session disconnects abruptly
I have inherited and SCO OpenServer Release 6 server. The clients connect using telnet to get to a proprietary database application for Service tickets. The issue I am currently having is that the connection just stops abruptly and you can see "telnet session terminated" on the terminal emulation software. The terminal emulation software (Attachmate Relections) has a trace function and I can see an received FD_Close from the server. I have tried a wireshark trace as well and can see several TELNET retransmissions before the disconnect. This has happened with two different terminal emulation programs and on different computers on the network. I have checked /usr/adm/messages and there is nothing relating to the telnet sessions, and I have checked /usr/adm/syslog and I only get the following messages
Code:
service bootpd[2175]: IP address not found: xxx.xxx.xxx.xxx

Where xxx.xxx.xxx.xxx shows the IP address of the computer connecting.

Is there anyway to find out why SCO is disconnecting the sessions. There is no rhyme or reason I can see. It can occur after 1 minute or after 1 hour. If I have two terminal emulator session running on the computer at the same time one session is disconnected and the other keeps running fine for the rest of the day.

I've tried the switch but don't see any errors?

Would anyone have any ideas on why SCO appears to be dropping the connection and where I can look?
Thank you
Last edited by Don Cragun; 08-09-2015 at 12:23 PM.. Reason: Add CODE and ICODE tags.
 

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LEARN ABOUT FREEBSD

kf

KF(1)							    BSD General Commands Manual 						     KF(1)

NAME

     kf -- securely forward tickets

SYNOPSIS

     kf [-p port | --port=port] [-l login | --login=login] [-c ccache | --ccache=ccache] [-F | --forwardable] [-G | --no-forwardable]
	[-h | --help] [--version] host ...

DESCRIPTION

     The kf program forwards tickets to a remote host through an authenticated and encrypted stream.  Options supported are:

     -p port, --port=port
	     port to connect to

     -l login, --login=login
	     remote login name

     -c ccache, --ccache=ccache
	     remote cred cache

     -F, --forwardable
	     forward forwardable credentials

     -G, --no-forwardable
	     do not forward forwardable credentials

     -h, --help

     --version

     kf is useful when you do not want to enter your password on a remote host but want to have your tickets one for example AFS.

     In order for kf to work you will need to acquire your initial ticket with forwardable flag, i.e.  kinit --forwardable.

     telnet is able to forward tickets by itself.

SEE ALSO

     kinit(1), telnet(1), kfd(8)

Heimdal 							   July 2, 2000 							   Heimdal
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