suddenly-opened-ports-checker

Python script that scans TCP ports of your servers and notifies you about unexpected changes (new opened ports, or closed ports expected to be open).

Usage

Python 3.7 or newer is required.

usage: suddenly-opened-ports-checker.py [-h] --config CONFIG [--verbose] [--concurrency CONCURRENCY] [--timeout TIMEOUT] [--threads-limit THREADS_LIMIT] [--no-telegram]

optional arguments:
  -h, --help            show this help message and exit
  --config CONFIG       path to config file in yaml format
  --verbose             set logging level to DEBUG (default is INFO)
  --concurrency CONCURRENCY
                        default number of threads per target (defaults to 200)
  --timeout TIMEOUT     default timeout (defaults to 5)
  --threads-limit THREADS_LIMIT
                        global threads limit (default is no limit)
  --no-telegram         just print results, don't send to telegram

Config example

Each server definition must have at least host and opened keys. opened is a list of ports expected to be open.

You can also set per-server concurrency and timeout.

telegram:
  chat-id: -987
  token: yourtoken

servers:
  server-1:
    host: 1.2.3.4
    opened:
      - 22
      - 80
      - 443

  server-2:
    host: 5.6.7.8
    opened: []
    concurrency: 1000
    timeout: 2

License

MIT