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Full Discussion: Telnet script
Top Forums Shell Programming and Scripting Telnet script Post 302448654 by felipe.vinturin on Thursday 26th of August 2010 02:28:21 PM
Old 08-26-2010
It must be telnet?

If you can use ssh, you can try:
Code:
sshOptions="-oPort=22 -oPreferredAuthentications=publickey -oPubkeyAuthentication=yes -oKeepAlive=yes -oConnectionAttempts=1 -oNumberOfPasswordPrompts=1 -oStrictHostKeyChecking=no"
echo "Test" | ssh -T -C ${sshOptions} -l ${remoteUser} ${remoteHost} 1> /dev/null 2>&1

You have several ssh option: UNIX man pages : ssh (1)

For the user/password, not to ask it while executing the script, check: OpenSSH Public Key Authentication

Regards.

---------- Post updated at 15:28 ---------- Previous update was at 15:08 ----------

One comment I forgot is to test the ssh return code after execution:

Code:
echo "Test" | ssh -T -C ${sshOptions} -l ${remoteUser} ${remoteHost} 1> /dev/null 2>&1
sshReturnCode=$?

if [ ${sshReturnCode} -ne 0 ]
then
      echo "ERROR: Failed to access host:[ ${remoteHost}]."
fi

 

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LEARN ABOUT SUSE

ssh-keysign

SSH-KEYSIGN(8)						    BSD System Manager's Manual 					    SSH-KEYSIGN(8)

NAME

     ssh-keysign -- ssh helper program for host-based authentication

SYNOPSIS

     ssh-keysign

DESCRIPTION

     ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication with
     SSH protocol version 2.

     ssh-keysign is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting
     EnableSSHKeysign to ``yes''.

     ssh-keysign is not intended to be invoked by the user, but from ssh(1).  See ssh(1) and sshd(8) for more information about host-based authen-
     tication.

FILES

     /etc/ssh/ssh_config
	     Controls whether ssh-keysign is enabled.

     /etc/ssh/ssh_host_dsa_key, /etc/ssh/ssh_host_rsa_key
	     These files contain the private parts of the host keys used to generate the digital signature.  They should be owned by root, read-
	     able only by root, and not accessible to others.  Since they are readable only by root, ssh-keysign must be set-uid root if host-
	     based authentication is used.

SEE ALSO

     ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)

HISTORY

     ssh-keysign first appeared in OpenBSD 3.2.

AUTHORS

     Markus Friedl <markus@openbsd.org>

BSD
								   May 31, 2007 							       BSD
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