SSH into Second Server w/ Net::SSH::Perl

[awohld]

I'm logging into a Solaris machine using Net::SSH::Perl, then I need to SSH from there to a second Solaris machine.

I get in the first computer fine and then when I SSH into the second it hangs. The second computer is asking for a password.

I've tried using the handler register to SSH_SMSG_STDERR_DATA and SSH_SMSG_STDOUT_DATA constants, and various modifications on the Net::SSH::Perl exmaple to send the password when the user is prompted for it but it dosn't work, just hangs. Can someone give me a clue?

use strict;
use warnings;
use Net::SSH::Perl;
use Net::SSH::Perl::Constants qw( :msg );

my $ssh = Net::SSH::Perl->new($user);
$ssh->login($username, $password);

$ssh->register_handler(
    SSH_SMSG_STDERR_DATA, sub{
        my ( $ssh, $packet ) = @_;
        my $str = $packet->get_str;
        if ( $str =~ /Password/ ) {
            my $packet = $ssh->packet_start(SSH_CMSG_STDIN_DATA);
            $packet->put_str($password);
            $packet->send;
        }
    }
);

$ssh->cmd('ssh second_host');
$ssh->cmd('run cmd on second host');

Update: I added the SSH keys so when I do 'ssh second_host' it goes without a problem when I use a SSH client to SSH from the first remote to the second remote. But when I'm using Net::SSH::Perl, it still hangs. The password barrier should be removed.

[atancasis]

The default identity filenames used by Net::SSH::Perl for passphrase-less SSH logins does not include the default RSAv2 identity filename (ie: id_rsa). To check if you are using RSA v2, you should have a .ssh/id_rsa file sitting in your home directory, in which case the Net::SSH::Perl object should be instantiated like this:

my $ssh = Net::SSH::Perl->new($host, identity_files => [ "$ENV{HOME}/.ssh/id_rsa" ]);

Note the identity_files option. Also, just change the path in case you changed the default identity filename when you generated the SSH keys.

[Khen1950fx]

Try using

use Net::SSH::Perl::Constants qw(
              SSH_SMSG_STDERR_DATA
              SSH_CMSG_STDIN_DATA);

It seemed to work better for me. Here's what I tried:

#!/usr/bin/perl

use strict;
use warnings;
use Net::SSH::Perl;
use Net::SSH::Perl::Constants qw(
              SSH_SMSG_STDERR_DATA 
              SSH_CMSG_STDIN_DATA );

my $host     = 'localhost';
my $username = 'user';
my $password = 'password';
my $cmd1     = 'whereis perl && perl -V';

my $ssh = Net::SSH::Perl->new(
        $host,
        protocol => 2, 1, 
        debug    => 1,
);
$ssh->login( $username, $password );

$ssh->register_handler(
    SSH_SMSG_STDERR_DATA, sub{
        my ( $ssh, $packet ) = @_;
        my $str = $packet->get_str;
        if ( $str =~ /Password/ ) {
            $packet = $ssh->packet_start(SSH_CMSG_STDIN_DATA);
            $packet->put_str($password);
            $packet->send;
        }
    }
);

my ($stdout, $stderr, $exit) = $ssh->cmd($cmd1);
print $stdout, "\n";