synping

Ping hosts using tcp syn packets.

Please note that full tcp handshake is used, we want the program to behave nicely and to explicit close the connection after each "ping".

Simple example:

$ synping example.org

Pinging example.org 4 times on port 80:

Reply from 93.184.215.14:80 time=126.17 ms
Reply from 93.184.215.14:80 time=126.54 ms
Reply from 93.184.215.14:80 time=129.27 ms
Reply from 93.184.215.14:80 time=133.44 ms

Statistics:
--------------------------

Host: example.org

Sent: 4 packets
Received: 4 packets
Lost: 0 packets (0.00)%

Min time: 126.17 ms
Max time: 133.44 ms
Average time: 128.85 ms

Notes

• Works on Python 3.7+, for older Python (2.7, 3.4...) use synping 0.9
• Uses only standard library for maximum compatibility

Install

Install using pip:

pip install synping

Or download and set executable permission on the script file:

chmod +x synping.py

Or download and run using the python interpreter:

python synping.py

Usage

usage: synping host [options]

ping hosts using tcp syn packets

positional arguments:
  host           host to ping

options:
  -h, --help     show this help message and exit
  -t             ping host until stopped with 'control-c'
  -n COUNT       number of requests to send (default: 4)
  -p PORT        port to ping (default: 80)
  -w TIMEOUT     timeout in seconds to wait for reply (default: 3)
  -v, --version  show program's version number and exit

e.g.: synping example.org

Examples

Ping host on port 80 (default):

synping host

Ping host on port 22:

synping host -p 22

Ping host 10 times with 1 second timeout:

synping host -n 10 -w 1