Reverse Tunneling to access local desktop remotely

I work from a co-working office and it has a shared internet connection. I wanted to access my office desktop from my home. Though there are multiple apps to do this, I only needed ssh access, so I did it the old way.

I spin up a tiny server. I used AWS micro instance. Lets call it server. Lets call my desktop as local-desktop and I will be using my home desktop (let’s call it remote-desktop) to connect to local-desktop through server.

Step 1:

local-desktop connects to server and forward remote port 8022 to its local port 22 using command.
ssh -R 8022:localhost:22 user@server #run it in local-desktop
Where -R is for remote port forwarding, 8022 is server’s port which will be mapped to port 22 of local-desktop

Now, if you ssh into the server server and run ssh user@localhost -p 8022 you will be able to access local-desktop

Step 2:

I don’t want to login into server server every time to access my local-desktop. That’s why I setup a forward proxy to map my remote-desktop‘s port 9922 to server‘s port 8022 which is already mapped to local-desktop‘s port 22.

Here is a command to do that:
ssh -L 9922:localhost:8022 user@server #run it in remote-desktop

Now I can login to my local-desktop from my remote-desktop using command ssh user@localhost -p 9922.