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Full Discussion: SSH: internal working but external not working
Operating Systems Solaris SSH: internal working but external not working Post 302627185 by aixlover on Friday 20th of April 2012 09:51:40 AM
Old 04-20-2012
SSH: internal working but external not working
Hi, This is a strange issue: We have an sftp server. Users can ssh to it from internal LAN without any issue, but they can not ssh to it externally via firewall. Here is what I got:

Quote:
$ ssh -v sshuser@198.111.10.98
OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to 198.111.10.98 [198.111.10.98] port 22.
debug1: Connection established.
debug1: identity file /Users/sshuser/.ssh/identity type -1
debug1: identity file /Users/sshuser/.ssh/id_rsa type 1
debug1: identity file /Users/sshuser/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version 3.2.9.1 SSH Secure Shell (non-commercial)
debug1: no match: 3.2.9.1 SSH Secure Shell (non-commercial)
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: sending SSH2_MSG_KEXDH_INIT
debug1: expecting SSH2_MSG_KEXDH_REPLY
debug1: Host '198.111.10.98' is known and matches the DSA host key.
debug1: Found key in /Users/sshuser/.ssh/known_hosts:25
debug1: ssh_dss_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/sshuser/.ssh/identity
debug1: Offering public key: /Users/sshuser/.ssh/id_rsa
debug1: Authentications that can continue: password
debug1: Next authentication method: password
sshuser@198.111.10.98's password:
debug1: Authentications that can continue: password
Permission denied, please try again.
sshuser@198.111.10.98's password:
debug1: Authentications that can continue: password
Permission denied, please try again.
sshuser@198.111.10.98's password:
debug1: Authentications that can continue:
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/sshuser/.ssh/id_dsa
debug1: Next authentication method: keyboard-interactive
debug1: Authentications that can continue:
debug1: Next authentication method: password
debug1: No more authentication methods to try.
Permission denied ().
OS is Solaris 9. No hosts.allow and hosts.deny files.

Quote:
sshserver# uname -a
SunOS psftp 5.9 Generic_118558-13 sun4u sparc SUNW,UltraAX-i2

sshserver# ls -l /etc/host*
-rw-r--r-- 1 root root 6 Jul 16 2004 /etc/hostname.eri0
-rw-r--r-- 1 root other 7 Jul 16 2004 /etc/hostname.eri1
lrwxrwxrwx 1 root root 12 Apr 6 2004 /etc/hosts -> ./inet/hosts
Please help. Thank you in advance!
 

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LEARN ABOUT SUSE

ssh-keysign

SSH-KEYSIGN(8)						    BSD System Manager's Manual 					    SSH-KEYSIGN(8)

NAME

     ssh-keysign -- ssh helper program for host-based authentication

SYNOPSIS

     ssh-keysign

DESCRIPTION

     ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication with
     SSH protocol version 2.

     ssh-keysign is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting
     EnableSSHKeysign to ``yes''.

     ssh-keysign is not intended to be invoked by the user, but from ssh(1).  See ssh(1) and sshd(8) for more information about host-based authen-
     tication.

FILES

     /etc/ssh/ssh_config
	     Controls whether ssh-keysign is enabled.

     /etc/ssh/ssh_host_dsa_key, /etc/ssh/ssh_host_rsa_key
	     These files contain the private parts of the host keys used to generate the digital signature.  They should be owned by root, read-
	     able only by root, and not accessible to others.  Since they are readable only by root, ssh-keysign must be set-uid root if host-
	     based authentication is used.

SEE ALSO

     ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)

HISTORY

     ssh-keysign first appeared in OpenBSD 3.2.

AUTHORS

     Markus Friedl <markus@openbsd.org>

BSD
								   May 31, 2007 							       BSD
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