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Full Discussion: SSH forwarding based on ports
Top Forums Shell Programming and Scripting SSH forwarding based on ports Post 302811975 by DGPickett on Friday 24th of May 2013 04:30:59 PM
Old 05-24-2013
VPN does not seem to be a need. No reconfiguration of sshd is necessary, either. Of course, the sshd on the far end must allow the tunnel type.

If you set up a tunnel with SSH, listening on one end and connecting out to some target host-port on the other, anyone who can get to the listener can use the target, as long as it is not a tcp protocol that acts on hosts and ports in the message stream, like FTP, and even that can be accommodated with additional tricks in many cases. Unlike the shell command part of the ssh session, user id is not in play, it is just a tcp wormhole you created. BTW, if the session has compression, so do the tunnel connections.
 

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LEARN ABOUT CENTOS

ssh-ldap-helper

SSH-LDAP-HELPER(8)					    BSD System Manager's Manual 					SSH-LDAP-HELPER(8)

NAME

     ssh-ldap-helper -- sshd helper program for ldap support

SYNOPSIS

     ssh-ldap-helper [-devw] [-f file] [-s user]

DESCRIPTION

     ssh-ldap-helper is used by sshd(1) to access keys provided by an LDAP.  ssh-ldap-helper is disabled by default and can only be enabled in the
     sshd configuration file /etc/ssh/sshd_config by setting AuthorizedKeysCommand to ``/usr/libexec/openssh/ssh-ldap-wrapper''.

     ssh-ldap-helper is not intended to be invoked by the user, but from sshd(8) via ssh-ldap-wrapper.

     The options are as follows:

     -d      Set the debug mode; ssh-ldap-helper prints all logs to stderr instead of syslog.

     -e      Implies -w; ssh-ldap-helper halts if it encounters an unknown item in the ldap.conf file.

     -f      ssh-ldap-helper uses this file as the ldap configuration file instead of /etc/ssh/ldap.conf (default).

     -s      ssh-ldap-helper prints out the user's keys to stdout and exits.

     -v      Implies -d; increases verbosity.

     -w      ssh-ldap-helper writes warnings about unknown items in the ldap.conf configuration file.

SEE ALSO

     sshd(8), sshd_config(5), ssh-ldap.conf(5),

HISTORY

     ssh-ldap-helper first appeared in OpenSSH 5.5 + PKA-LDAP .

AUTHORS

     Jan F. Chadima <jchadima@redhat.com>

BSD
								  April 29, 2010							       BSD
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