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Full Discussion: Problems with SSH / telnet
Operating Systems AIX Problems with SSH / telnet Post 302246670 by Hille on Tuesday 14th of October 2008 05:29:39 AM
Old 10-14-2008
Problems with SSH / telnet

Hey,

I have upgraded 3 servers from SSH Tectia 4.0.3 to SSH Tectia 6.0.2. 2 of them are working fine but one server suddenly began to have troubles after about 2 hours. Now it is impossible to login to this server using SSH and even telnet. When SSH is running on this particular server, the CPU of the server is at it's maximum because of the SSH processes, which is not the case on the other 2 servers. Currently I have shut down the SSH processes on the server.

Then, when I try to make a connection using telnet it immediatly replies: 'Connection closed'. The strange fact however is that telnet refuses a connection done by the root user, but if I try it using another user, telnet works fine. (SSH doen't work in either case though) Restarting and even reinstalling SSH also didn't work. After SSH was uninstalled I tried another telnet connection but still it didn't work.

I've checked /etc/security/user, because of the telnet/root problem, but everything looks identical to the configuration of the other 2 servers. Can anyone help me with this problem?

Thank you
 

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RXTELNET(1)						    BSD General Commands Manual 					       RXTELNET(1)

NAME
rxtelnet -- start a telnet and forward X-connections. SYNOPSIS
rxtelnet [-l username] [-k] [-t telnet_args] [-x xterm_args] [-K kx_args] [-w term_emulator] [-b telnet_program] [-n] [-v] host [port] DESCRIPTION
The rxtelnet program starts an xterm window with a telnet to host host. From this window you will also be able to run X clients that will be able to connect securely to your X server. If port is given, that port will be used instead of the default. If setting up the X forwarding failes, rxtelnet will still telnet in to the remote host, but without X forwarding. The supported options are: -l Log in on the remote host as user username. -k Disables keep-alives. -t Send telnet_args as arguments to telnet. -x Send xterm_args as arguments to xterm. -X Send kx_args as arguments to kx. -w Use term_emulator instead of xterm. -b Use telnet_program instead of telnet. -n Do not start any terminal emulator. -v Be verbose. EXAMPLE
To login from host foo (where your display is) to host bar, you might do the following. 1. On foo: rxtelnet bar 2. You will get a new window with a telnet to bar. In this window you will be able to start X clients. SEE ALSO
kx(1), rxterm(1), telnet(1), tenletxr(1), kxd(8) KTH_KRB March 7, 2004 KTH_KRB
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