Bypass a firewall Part II – Secure Tunnel through the firewall
Building a SOCKS Proxy over SSH
All you need to realize a SOCKS5 tunnel over SSH is an openSSH on your “SOCKS-Server” and the already used “Proxifier”, as well as PuTTY on Windows-based systems.
First of all, you need to build up the secure tunnel (type the command into your OS X console):
ssh -2 -N -D 8080 user@<ip of your SOCKS5-Host>
for example:
ssh -2 -N -D 8080 myuser@192.168.1.11
On Windows, the configuration of PuTTY is the following:
Add the Hostname (for example: 192.168.1.11 – you need to add your SSH/SOCKS-Server IP there) under Tab “Sessions”
Then go to Tab “Tunnels” and enter Source Port 8080
Select “Dynamic” from the Destination Port
Click Open to buildup the tunnel
Now start the Proxifier and add the following Setting:
I find it usefull (but it is not neccessary) to add a rule to the Proxification Rules:
That’s all: openSSH has an integrated SOCKS-Proxy. Proxifier sends all traffic through the SSH-Tunnel (which is encrypted) and the SOCKS-proxy in openSSH on the other side sends the traffic to the destination hosts and returns incomming traffic to you.
