Daniel Escudero deescuderoo

List of Linux networking tools

netstat (ss)

Displays contents of /proc/net files. It works with the Linux Network Subsystem, it will tell you what the status of ports are ie. open, closed, waiting, masquerade connections. It will also display various other things. It has many different options. Netstat (Network Statistic) command display connection info, routing table information etc. To displays routing table information use option as -r.

Sample output:

Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)    
tcp4 0 0 127.0.0.1.62132 127.0.0.1.http ESTABLISHED

	import math
	import numpy as np
	import decimal

	import sys
	import re
	from decimal import Decimal

	decimal.getcontext().prec = 170
	log10Two = decimal.Decimal(2).log10()

	#!/usr/bin/env python3
	# Copyright 2020 Nicolas P. Rougier - BSD License
	#
	# from reading org-mode emacs files, display a formated calendar in the
	# terminal showing holidays and busy days and upcomiing events.

	import holidays # https://pypi.org/project/holidays/
	import calendar
	import datetime
	import orgparse # https://pypi.org/project/orgparse