GitHub - xandkar/probe-me: TCP port probing microservice for lightweight perimeter monitoring. "Is my port forwarding setup still working?"

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TCP port probing microservice for lightweight perimeter monitoring. "Is my port forwarding setup still working?"

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probe-me.rkt		probe-me.rkt

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probe-me
========

TCP port probing microservice for lightweight perimeter monitoring.
"Is my port forwarding setup still working?"

Originally [@asinovski][1]'s idea for lightweight [Helium][2] [Miner][3]
monitoring service, but generalized for miscellaneous self-probing fun.

[1]: https://github.com/asinovski
[2]: https://www.helium.com/
[3]: https://github.com/helium/miner/

build
-----

    make

usage
-----

### server

    ./probe-me

### client

* uri: `http://$server_host:$server_port/$client_target_port`
* method: `GET`
* response body: `$client_address $client_target_port (up | down) [$service_banner]`

#### example

    $ curl -i http://localhost:8080/6600
    HTTP/1.0 200 OK
    Server: probe-me.xandkar
    Content-Type: text/plain

    127.0.0.1 6600 up OK MPD 0.23.5

#### demo

http://xandkar.net:8080/22
http://xandkar.net:8080/44158