portchecker - a simple portchecking webapp

portchecker enables you to simply check your server's vitals based on simple PHP backend and a HTML/JS frontend

a (hopefully) live example is available at http://www.sitaru.eu/heartbeat

installation

should be straightforward:

• clone the repo/download

• move to your webroot/status or similar

• in the root folder of portchecker:

    touch .lastrequest
  

• then edit js/main.js to point to your check.php relative to your webroot (the '/heartbeat/check.php' part)

• adjust the services at the top of js/main.js (syntax is JSON)

frontend

the frontend is a simple HTML page, some css and some jQuery JS code which sends out AJAX requests to the backend.

backend

check.php is the main backend. it does the following:

• check if .lastrequest timestamp is minimum 1s back in time (to prevent spamming)
• do a fsockopen() on the requested port
• reply in JSON like this: {'result': true/false, 'port':'open/closed'} and an optional error message