Hi monks,
I tried to execute some commands on firewall using ssh.
Following is my script

#!/usr/bin/perl -w
# $Id: cmd.pl,v 1.4 2001/02/22 00:14:48 btrott Exp $
                                                                      
+          
use strict;
                                                                      
+          
use Net::SSH::Perl;
use Net::SSH::Perl::Cipher;
                                                                      
+          
chomp(my $this_host = `hostname`);
print "Enter a host name to connect to: [$this_host] ";
chomp(my $host = <STDIN>);
print "\n";
                                                                      
+          
print "Enter the port number of the remote sshd: [ssh] ";
chomp(my $port = <STDIN>);
print "\n";
                                                                      
+          
print "Choose a cipher from the list:\n";
my $supp = Net::SSH::Perl::Cipher::supported();
for my $ciph (sort @$supp) {
    printf "    [%d] %s\n", $ciph, Net::SSH::Perl::Cipher::name($ciph)
+;
}
printf "Enter a number: [%d] ", Net::SSH::Perl::Cipher::id('IDEA');
chomp(my $c = <STDIN>);
print "\n";
my $ssh = Net::SSH::Perl->new($host || $this_host,
    port => $port || 'ssh',
    cipher => Net::SSH::Perl::Cipher::name($c),
    debug => 1);
                                                                      
+          
my $this_user = scalar getpwuid($<);
print "Enter your username on that host: [$this_user] ";
chomp(my $user = <STDIN>);
                                                                      
+          
use Term::ReadKey;
                                                                      
+          
print "And your password: ";
ReadMode('noecho');
chomp(my $pass = ReadLine(0));
ReadMode('restore');
print "\n";
                                                                      
+          
$ssh->login($user || $this_user, $pass);
                                                                      
+          
print "Enter a command to execute: [ls -l] ";
chomp(my $cmd = <STDIN>);
my($out, $err) = $ssh->cmd($cmd || "ls -l");
print $out;
[download]

the cipher selected is 'DES'. With debug=1, after line 'Linux: Received encryption confirmation.' I got an error saying 'input must be 8 bytes long at /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi/Crypt/DES.pm line 57.'

How do i correct this?

Thanks
Nalina

20040611 Edit by Corion: Added code tags, reformatted

20040611 Edit by Corion: Changed title from 'Please help me'