Net::SSH::Perl hangs at "Waiting for NEWKEYS message."

2007fld has asked for the wisdom of the Perl Monks concerning the following question:

I'm running sftp from a Solaris server to a Windows server. The manual session is working. But when I use Net::SSH::Perl, the session hangs at "Waiting for NEWKEYS message.";

server1.com: Reading configuration data /export/home/xxxxx/.ssh/config
server1.com: Reading configuration data /etc/ssh_config
server1.com: Connecting to sftp.docufree.com, port 22.
server1.com: Remote version string: SSH-2.0-2.0
server1.com: Remote protocol version 2.0, remote software version 2.0
server1.com: Net::SSH::Perl Version 1.30, protocol version 2.0.
' matches pattern '^2\.'. match: '2.0
server1.com: Connection established.
server1.com: Sent key-exchange init (KEXINIT), wait response.
server1.com: Algorithms, c->s: 3des-cbc hmac-sha1 none
server1.com: Algorithms, s->c: 3des-cbc hmac-sha1 none
server1.com: Entering Diffie-Hellman Group 1 key exchange.
server1.com: Sent DH public key, waiting for reply.
server1.com: Received host key, type 'ssh-dss'.
server1.com: Host 'sftp.xxxx.com' is known and matches the host key.
server1.com: Computing shared secret key.
server1.com: Verifying server signature.
server1.com: Waiting for NEWKEYS message.

I know the next line should be "Enabling incoming encryption/MAC/compression". So maybe encryption is an issue here? I know the remote Windows server only only support AES (128 | 256). What encryption Net::SSH::Perl is using? 3des?

I just can not figure out why it hangs at "Waiting for NEWKEYS message"? What is the NEWKEYS message?

Comment on Net::SSH::Perl hangs at "Waiting for NEWKEYS message."

Replies are listed 'Best First'.
Re: Net::SSH::Perl hangs at "Waiting for NEWKEYS message." by salva (Canon) on Jan 19, 2010 at 15:39 UTC
Net::SSH::Perl is mostly unmaintained. Try using Net::SFTP::Foreign or Net::SSH2 instead.	[reply]
Re: Net::SSH::Perl hangs at "Waiting for NEWKEYS message." by 2007fld (Acolyte) on Jan 19, 2010 at 15:48 UTC
I have to use Net::SSH, and it is working with all other connections/servers.	[reply]
Re^2: Net::SSH::Perl hangs at "Waiting for NEWKEYS message." by salva (Canon) on Jan 19, 2010 at 16:27 UTC
well, then, as the issue is probably related to some deficiency on the module itself and nobody is maintaining it, you have two options: solve it yourself pay somebody to do it for you Just don't expect somebody to stand up and do it for fun, the module is far too complex for that to happen.	[reply]
Re^3: Net::SSH::Perl hangs at "Waiting for NEWKEYS message." by Anonymous Monk on Jan 19, 2010 at 17:09 UTC
There is a good chance the patch for Bug #48338 for Net-SSH-Perl: Race condition in SSHv2 might fix it :)	[reply]
Re^4: Net::SSH::Perl hangs at "Waiting for NEWKEYS message." by Anonymous Monk on Dec 28, 2010 at 19:29 UTC
Re^2: Net::SSH::Perl hangs at "Waiting for NEWKEYS message." by Anonymous Monk on Jan 19, 2010 at 15:52 UTC
Try checking through the bug reports , good luck :)	[reply]