SSH Debugging <-- compatibility

From: Bogomips (bogomips....@nirvanet.net)
Date: 12/21/01


From: "Bogomips" <bogomips....@nirvanet.net>
Date: Fri, 21 Dec 2001 18:42:29 +0100

Well,

Just imagine a large production area with plenty of powerfull printers. The
printers use NT file servers to keep spool. We use wireless connectivity and
encryption is on the "off" mode for performance concerns. To keep info safe
from Geeks, we are re-writting application to systematically use scp for
file transferts.

Ok, well... We face this buggy situation....

[admin@host ]$ ssh -C -v -c twofish -l admin server

debug: Connecting to server, port 22...
debug: Ssh2/ssh2.c:1956/main: Entering event loop.
debug: Ssh2Client/sshclient.c:1330/ssh_client_wrap: Creating transport
protocol.
debug:
SshAuthMethodClient/sshauthmethodc.c:137/ssh_client_authentication_initializ
e: Added "publickey" to usable methods.
debug:
SshAuthMethodClient/sshauthmethodc.c:137/ssh_client_authentication_initializ
e: Added "password" to usable methods.
debug: Ssh2Client/sshclient.c:1362/ssh_client_wrap: Creating userauth
protocol.
debug: client supports 2 auth methods: 'publickey,password'
debug: Ssh2Common/sshcommon.c:496/ssh_common_wrap: local ip = 10.10.100.1,
local port = 34791
debug: Ssh2Common/sshcommon.c:498/ssh_common_wrap: remote ip = 10.10.100.10,
remote port = 22
debug: SshConnection/sshconn.c:1889/ssh_conn_wrap: Wrapping...
debug: Remote version: SSH-2.0-2.4.0 SSH Secure Shell Windows NT Server
Evaluation (Expires Sun Jan 20 2002)
debug: Major: 2 Minor: 4 Revision: 0

1. debug: Ssh2Transport/trcommon.c:1286/ssh_tr_input_version: Remote version
has kex packet guess determination bug.
2. debug: Ssh2Transport/trcommon.c:1290/ssh_tr_input_version: Remote version
has hostbased looping on failure bug.

line 1 & 2 repport a buggy situation. What does it mean?

debug: Ssh2Transport/trcommon.c:1294/ssh_tr_input_version: Remote version
can only handle one key in "hostbased" auth.
debug: Ssh2Transport/trcommon.c:1366/ssh_tr_input_version: Remote version
uses md5 instead of sha-1 as hash algorithm with RSA keys.
debug: Ssh2Transport/trcommon.c:1717/ssh_tr_negotiate: lang s to c: `', lang
c to s: `'

3. debug: Ssh2Transport/trcommon.c:1783/ssh_tr_negotiate: c_to_s: cipher
twofish-cbc, mac hmac-sha1, compression none
4. debug: Ssh2Transport/trcommon.c:1786/ssh_tr_negotiate: s_to_c: cipher
twofish-cbc, mac hmac-sha1, compression none

compression none... Thus, my -C switch was not usefull...

debug: Remote host key found from database.
debug: Ssh2Common/sshcommon.c:291/ssh_common_special: Received
SSH_CROSS_STARTUP packet from connection protocol.
debug: Ssh2Common/sshcommon.c:341/ssh_common_special: Received
SSH_CROSS_ALGORITHMS packet from connection protocol.
This is an evaluation version of the SSH Secure Shell Windows Server.
The evaluation version expires on Sun Jan 20 2002)
debug: server offers auth methods 'password'.
debug: Ssh2AuthPasswdClient/authc-passwd.c:95/ssh_client_auth_passwd:
Starting password query...
admin's password:

Compression is absolutely necessary because the wireless bandwidth is very
low.

[admin@host]$ ssh -V
ssh: SSH Secure Shell 3.0.1 (non-commercial version) on i686-pc-linux-gnu

At the NT side:
SSH Secure Shell for Windows Servers.

Any idea?

Regards,

Bogomips



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