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Full Discussion: Expect script not expecting the password prompt
Top Forums Shell Programming and Scripting Expect script not expecting the password prompt Post 302982125 by Junaid Subhani on Saturday 24th of September 2016 01:29:52 PM
Old 09-24-2016
Expect script not expecting the password prompt
I have a script that does an SSH into a remote node. It should expect the prompt and send the password.

Code:
    #!/usr/bin/expect
    
    
    set user [lindex $argv 0];
    set pass [lindex $argv 1];
    
    spawn ssh $user@E-Internal
    
    expect {
        -re "RSA key fingerprint" {send "yes\r"}
        timeout {puts "\nHost is known"}
    }
    
    expect {
        -re "(P|p)assword: " {send "$pass\r"}
         timeout {puts "Timeout error. Is device down or unreachable?? Password correct?";exit}
    }
    interact

When I run the script :

Code:
    [ruser@vm1 ~]$ /home/rsguser/scripts/git-si-repo/scripts/tunnels/itte-build-node.sh root root123
    spawn ssh root@E-Internal
    
    Host is known
    Timeout error. Is device down or unreachable?? Password correct?

Is there something I am missing ?

If I try to directly SSH, it works like :

Code:
[ruser@vm1 ~]$ ssh root@E-Internal
    root@147.128.64.212's password: 
    Last login: Sun Sep 25 00:25:31 2016 from 142.133.134.161
    [root@ecnshlx3122 ~]#

 

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LEARN ABOUT MOJAVE

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.

     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_ecdsa_key
     /etc/ssh/ssh_host_ed25519_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.

     /etc/ssh/ssh_host_dsa_key-cert.pub
     /etc/ssh/ssh_host_ecdsa_key-cert.pub
     /etc/ssh/ssh_host_ed25519_key-cert.pub
     /etc/ssh/ssh_host_rsa_key-cert.pub
	     If these files exist they are assumed to contain public certificate information corresponding with the private keys above.

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
								 February 17, 2016							       BSD
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