port monitor监控端口的开放性

端口监视器 usage: portmon.py [-h] [--timeout TIMEOUT] [--sleep SLEEP] host port

Monitor a port for open/closedness

positional arguments:

host Host to monitor

port Port to monitor

optional arguments:

-h, --help show this help message and exit

--timeout TIMEOUT Timeout (seconds)

--sleep SLEEP Time to sleep between checks (seconds)

例子：监视 example.com 上的端口