SSHTunnel

A secure shell (SSH) tunnel consists of an encrypted tunnel created through a SSH protocol connection. Users may set up SSH tunnels to transfer unencrypted traffic over a network through an encrypted channel.

Netbios SSH tunnel

Entities:

• SSH server: 10.1.1.123
• user on ssh server: root
• Netbios server (Samba): 192.168.3.4
• SSH client: 192.168.3.15
• Ports 139 and 445 on Netbios server
• Ports 139 and 445 must be free in the SSH server

The SSH server on the file /etc/ssh/ssh_config must have GatewayPorts yes.

The SSH client must be able to reach the SSH server and the netbios server.

On the ssh client, issue the following commands:

• ssh root@10.1.1.123 -R 139:192.168.3.4:139 sleep 99999

• ssh root@10.1.1.123 -R 445:192.168.3.4:445 sleep 99999

Now the Netbios server can be reached through ports 139 and 445 in the SSH server.

MS SQL Server tunnel

On the ssh client, issue the following commands:

• ssh root@10.1.1.123 -R 1433:192.168.3.113:1433 sleep 99999