A tool for portforwarding via piping-server inspired by following article.
It is similar to port forwarding by ssh -L but source port and target port are connected through following servers.
- portwarp client
- piping-server
- portwarp server
You can run portwarp server in a private network if it is reachable to piping-server via outbound connection.
These examples assumes a piping server available for both client and server side, given as http://piping.server/.
server side
$ docker run --net=host -ti essa/portwarp portwarp http://piping.server/
I, [2019-03-24T13:36:14.547737 #1] INFO -- : portwarp start
I, [2019-03-24T13:36:14.547936 #1] INFO -- : server mode
I, [2019-03-24T13:36:14.589788 #1] INFO -- : server start url = http://piping.server/29ef18e25dddece9
portwarp server displays a url for client.
Please give it to client side of portwarp.
client side
$ git clone https://github.com/essa/portwarp.git
$ cd portwarp
$ bundle
$ bundle exec bin/portwarp http://piping.server/29ef18e25dddece9 8080 private.server.local:80
Then localhost:8080 is connected to private.server.local:80 and you can connect to it by giving http://localhost:8080 to your local browser.
Or you can get the response directly by giving a command at the last of command line.
$ bundle exec bin/portwarp http://piping.server/29ef18e25dddece9 8080 private.server.local:80 curl http://localhost8080/
Other example for client side
$ bundle exec bin/portwarp --loglevel=DEBUG http://piping.server/29ef18e25dddece9 1022 localhost:22 ssh -p 1022 ec2-user@localhost
- notify error on server to client
- describe options on --help
- handling shell args and quotes
- automate docker push with CI
MIT