SSh Tunnel
==========

Public domain
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### RemoteInvalidIP:RemotePort forward to LocalIP:LocalPort

    ssh username@RemoteValidIP -L LocalIP:LocalPort:RemoteInvalidIP:RemotePort -N

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### LocalInvalidIP:LocalPort forward to Remote127.0.01:RemotePort

    ssh username@RemoteValidIP -R RemotePort:LocalInvalidIP:LocalPort -N

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### Remote Desktop (rdp)

    ssh 10.11.12.1 -L 172.16.20.2:3389:10.11.12.20:3389 -N

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### PCAnyWhere

    ssh 10.11.12.1 -L 172.16.20.2:5631:10.11.12.20:5631 -D 172.16.20.2:5632 -N

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### SSH CallBack

    ssh user@10.11.12.1 -R 2222:172.16.20.2:22 -N


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### Automatic ssh tunnel (freebsd)

Server:

    # adduser
    Username: pejman
    Full name: Pejman Moghadam
    Uid (Leave empty for default):
    Login group [pejman]:
    Login group is pejman. Invite pejman into other groups? []:
    Login class [default]:
    Shell (sh csh tcsh nologin) [sh]:
    Home directory [/home/pejman]:
    Use password-based authentication? [yes]:
    Use an empty password? (yes/no) [no]:
    Use a random password? (yes/no) [no]:
    Enter password: pass123456
    Enter password again: pass123456
    Lock out the account after creation? [no]:
    Username   : pejman
    Password   : *****
    Full Name  : Pejman Moghadam
    Uid        : 1001
    Class      :
    Groups     : pejman
    Home       : /home/pejman
    Shell      : /bin/sh
    Locked     : no
    OK? (yes/no): yes
    adduser: INFO: Successfully added (pejman) to the user database.
    Add another user? (yes/no): no
    Goodbye!
    
    # su pejman
    $ cd
    $ pwd
    /home/pejman
    $ mkdir .ssh
    $ exit
    
    
Client:
    
    # vi /etc/hosts
        10.20.30.100          sshserver
    
    # ssh-keygen -t rsa
    Generating public/private rsa key pair.
    Enter file in which to save the key (/root/.ssh/id_rsa):
    Enter passphrase (empty for no passphrase):
    Enter same passphrase again:
    Your identification has been saved in /root/.ssh/id_rsa.
    Your public key has been saved in /root/.ssh/id_rsa.pub.
    The key fingerprint is:
    ef:fb:69:f3:82:e4:bc:32:f3:11:88:40:67:2c:64:f6 root@reza.12345
    
     # ssh-copy-id -i /root/.ssh/id_rsa.pub pejman@sshserver
    or :
     # scp /root/.ssh/id_rsa.pub pejman@sshserver:/home/pejman/.ssh/new-authorized_keys2
    test :
     # ssh -L 5050:localhost:5050 pejman@sshserver
    
    # cd /usr/ports/lang/php5
    # make install clean && rehash
    
    # vi /usr/local/sbin/ssh-tunnel.php
        #!/usr/local/bin/php
        < ? php
        $port   = 5000;
        $ip     = "localhost";
        $user   = "pejman";
        $server = "sshserver";
        $fp     = fsockopen($ip, $port);
        $str    = "/usr/bin/ssh -L ${port}:${ip}:${port} ${user}@${server} -N &";
        if($fp):
            fclose($fp);
        else:
            exec($str);
        endif;
        ? >
    
    # chmod +x /usr/local/sbin/ssh-tunnel.php
    # vi /etc/crontab
        *       *       *       *       *       root    /usr/local/sbin/ssh-tunnel.php > /dev/null
    
    
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_BY: Pejman Moghadam_  
_TAG: ssh, freebsd_  
_DATE: 2009-05-06 14:15:26_