In the following small script, I can not get $ssh->cmd executed successfully. $out and $err are all empty.

At the end of the debug log, it says: "
Authentication methods that can continue: password,publickey.
Next method to try is password.
Trying password authentication.
Login completed, opening dummy shell channel.
channel 0: new client-session
Requesting channel_open for channel 0.
channel 0: open confirm rwindow 131072 rmax 98304
channel 1: new client-session
Requesting channel_open for channel 1.
Channel open failure: 1: reason 2:"
What can possibly cause the error “Channel open failure: 1: reason 2”? Where should I look into?

==== my simple script:

use Net::SSH::Perl;
use Net::SSH::Perl::Cipher;
my $hostname = "****";
my $username = "****";
my $passwd = "****";
my $ssh = Net::SSH::Perl->new($hostname, port => 22, interactive=> 0, debug => 1, protocol => 2);
$ssh->login($username, $passwd);
my $cmd = "ls –l ";
my($out,$err) = $ssh->cmd($cmd);
print "the output is $out\n";

In reply to Net::SSH::Perl question by 2007fld

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