tcp forwarder

its a simple tcp forwarding tool to forward incoming tcp connections to a remote service at a remote host

Download and usage :

wget https://github.com/benyamin218118/tcpforwarder/raw/main/tcpforwarder
chmod +x ./tcpforwarder

./tcpforwarder -lPort LISTEN_PORT -rHost REMOTE_SERVER_HOST -rPort REMOTE_SERVER_PORT

examples :

we want to forward incoming tcp connections from our ir vps to a service running on port 9090 on a usa vps

• first we need to choose a listen port for the ir vps like 8080 ( we will accept the incoming tcp connections on it )
• our usa vps ip address is 44.55.66.77 and that service port is 9090 as mentioned before ( you can use domain address instead of the ip too )
• so we need to replace the variables in ./tcpforwarder -lPort LISTEN_PORT -rHost REMOTE_SERVER_HOST -rPort REMOTE_SERVER_PORT and run it on the ir vps:

./tcpforwarder -lPort 8080 -rHost 44.55.66.77 -rPort 9090

now we can use the ir vps ip address and 8080 port instead of 44.55.66.77 and 9090 for connecting to that service running on the usa vps.

client > x.x.x.x:8080 -> 44.55.66.77:9090

you can use screen for keeping the process alive or write a systemd unit file ( you can install screen tool using apt install screen -y on ubuntu)