Expose NAT server

Allow external connection to a server under a private network

Test the server

One of the best options is to use a SSH jump host server. For example, you can use serveo.net to test.

In your proxy server, run:

/usr/bin/ssh -R 35854:localhost:3128 serveo.net

In your client, run:

export http_proxy="http://USER:PASSWORD@serveo.net:35854"
export https_proxy="http://USER:PASSWORD@serveo.net:35854"
export ftp_proxy="http://USER:PASSWORD@serveo.net:35854"
export no_proxy="localhost,,::1"
curl http://www.google.com

Setup serveo.net as a service

Make sure systemd is installed:

apt update
apt install systemd

Create the service file:

nano /etc/systemd/system/serveo-proxy.service

With the following content:

Description=Serveo proxy tunnel

ExecStart=/usr/bin/ssh -R 35854:localhost:3128 serveo.net


Start and enable the service:

sudo systemctl daemon-reload
sudo systemctl enable serveo-proxy.service
sudo systemctl start serveo-proxy.service

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