CentOS

How To Create a SSH tunnel from your laptop (SRC) through multiple hosts to a target (TGT) host

Use Virtual Box for virtualisation from your windows laptop.

Step #1 Create the tunnel from your vbox VM to the TGT server On the vbox vm or cygwin host create a tunnel to the IP and port number of the TGT server that you wish to access.

• $ ssh -L *:7777:<TGT IP>:8181 < TGT IP>

- The < - L * > allows connections from any interface.

- 7777 is the port on your localhost/VM that is configured to connect to port 8181 of the TGT host.

- Leave the connection open in it's own terminal window for your connection to work.

Step #2

1. - Create the tunnel from your laptop to your VM
2. - On your laptop use PuTTy to create a tunnel to your vbox/cygwin VM instance.
3. - Load/create a connection to your VM with the following configuration

- IP: 127.0.0.1 Port: 22

1. - Under <Connection> - < SSH > - < Tunnels > add the port on your laptop that you want to use to forward to the port you setup in the previous step on your VM

- Laptop Port: 5555 (as an example)

- VM Port: 7777 (created in step #1)

1. -Enter the above info in the cfg box as per below.

- Source port: 5555

- Destination: IP of your VM instance e.g. 10.0.3.15:7777

1. - Click on < Apply >

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Step #3 Test your connection by opening a BUI on your laptop and entering the following in the URL http://127.0.0.1:5555

You should see the web page presented by your TGT server on a browser direct from your laptop.