Poor man's reverse proxy with SSH

README.md

Usage

Install the service by adding the ssh-reverse-proxy@.service to /lib/systemd/system/.

Create a config for a service:

Example:

# /etc/default/ssh-reverse-proxy@your-service

LOCAL_ADDR=localhost
LOCAL_PORT=3535
REMOTE_ADDR=10.10.20.1 # The remote addr to proxy
REMOTE_PORT=3535 # The remote port to proxy

ssh-reverse-proxy@.service

[Unit]
Description=SSH proxy daemon %I
Requires=network.target

[Service]
; User=your-user
; Group=your-group
Environment="LOCAL_ADDR=localhost"
Environment="LOCAL_PORT=3535"
Environment="REMOTE_ADDR=localhost"
Environment="REMOTE_PORT=3535"
EnvironmentFile=/etc/default/ssh-reverse-proxy@%i
ExecStart=ssh -NT -o StrictHostKeyChecking=no -o ServerAliveInterval=60 -o ExitOnForwardFailure=yes -R ${LOCAL_ADDR}:${LOCAL_PORT}:${REMOTE_ADDR}:${REMOTE_PORT} ${REMOTE}

# Restart every >2 seconds to avoid StartLimitInterval failure
RestartSec=5
Restart=always

[Install]
WantedBy=multi-user.target