| Subject: | zlib mismatch in Kex with SSH 2 |
| Date: | Thu, 26 Jul 2012 17:56:30 -0700 (PDT) |
| To: | bug-Net-SSH-Perl [...] rt.cpan.org |
| From: | Andrew Daviel <advax [...] triumf.ca> |
If I use Net::SSH::Perl to connect to an ssh server on CENTOS5, or on a
Juniper appliance, and use SSH 2 with compression enabled (which is the
default in Juniper's Perl API), I get a negotiation failure in kex for
zlib comprssion
example:
use Net::SSH::Perl ;
my %param ;
$param{debug} = 1 ;
$param{compression} = 1 ;
$param{protocol} = '2' ;
my $ssh = Net::SSH::Perl->new("example.com",%param);
$ssh->login("foo", "bar");
($out, $err, $exit) = $ssh->cmd("uptime");
print "$out" ;
client: Connecting to example.com, port 22.
client: Remote protocol version 1.99, remote software version OpenSSH_4.4
client: Net::SSH::Perl Version 1.34, protocol version 2.0.
client: No compat match: OpenSSH_4.4.
client: Connection established.
client: Sent key-exchange init (KEXINIT), wait response.
No matching comp found: client zlib server none,zlib@openssh.com at /usr/lib/perl5/vendor_perl/5.8.8/Net/SSH/Perl/SSH2.pm line 92
regards
--
Andrew Daviel, TRIUMF, Canada
Tel. +1 (604) 222-7376 (Pacific Time)
Network Security Manager