topic Re: telnet in Operating System - HP-UX

telnet

fazly — Mon, 04 Jun 2007 21:16:13 GMT

hi, i try run my switch(d-link) on bash script but it fail.My username and password are correct.The error appear like this :

DES-3326SR Fast Ethernet Switch Command Line Interface

Firmware: Build 4.03-B01
Copyright(C) 2000-2005 D-Link Corporation. All rights reserved.
UserName:fazly
PassWord:*******
Fail!
UserName:Connection closed by foreign host.

what shoul i do?

Re: telnet

skt_skt — Mon, 04 Jun 2007 21:21:42 GMT

The error looks like an authentication failure.
what you mean "run my switch on bash script"?

Re: telnet

fazly — Mon, 04 Jun 2007 22:18:26 GMT

i mean i build coding in bash script (shell script) and it appear in terminal something like this:

DES-3326SR Fast Ethernet SwitCommand Line Interface
Copyright(C) 2000-2005 D-Link Corporation. All rights reserved.
UserName:fazly
PassWord:*******
DES-3326SR:4#
in my terminal it success but in shell script it fail. Why? so here this is my coding in shell script.

host=10.90.90.90
port=23
UserName=fazly
PassWord=cat

(echo open ${host} ${port}
sleep 1
echo ${UserName}
sleep 1
echo ${PassWord}
sleep 1
echo exit) | telnet

Re: telnet

Dennis Handly — Mon, 04 Jun 2007 23:07:08 GMT

I'm not sure if your sleep is long enough?

Typically you use expect to script this.
Or for ftp, you put the user and password on the same line, and use -n.

Re: telnet

Rasheed Tamton — Sun, 10 Jun 2007 05:01:28 GMT

Hi,

Try increasing your sleep time more. Especially the first sleep.
From sleep 1 to sleep 3 , etc. If it is a slow connection you will have to increase accordingly. Play with the sleep then might be ok if you do not want to use expect script.

Re: telnet

Steven Schweda — Sun, 10 Jun 2007 08:08:47 GMT

> Typically you use expect to script this.

Or Kermit, which has nice scripting features.

http://www.columbia.edu/kermit/
http://www.columbia.edu/kermit/scriptlib.html
http://www.columbia.edu/kermit/ckscripts.html