Ondřej Doležal odolezal

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

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Python 2.x

$ python -m SimpleHTTPServer 8000

TCP/IP applications by example

In this tutorial we'll implement some simple TCP/IP applications with ncat, bash and some other standard UNIX tools. The principles learned here can be used to implement networking applications in other languages.

The $ or # in front of command line examples denotes the system prompt. Do not type it

CERTBOT - Install using Python PIP

Install Certbot using Python PIP (Package Installer for Python) - without using SNAP, APT or SYSTEMD. (Debian/Ubuntu)

This guide will help you install LetsEncrypt / Certbot using venv PIP under Debian/Ubuntu.

This guide has been tested up to Debian 12 / Bookworm.

Connecting Sony WH-1000XM4 to Ubuntu 22.04 (Jammy)

This guide will help you connect your Sony WH-1000XM4 headset to Ubuntu 22.04 using Bluetooth. Once connected, you'll be able to listen to music and use the microphone on apps like Microsoft Teams.

1. Connect to Bluetooth Headset

Steps:

Open a terminal and launch bluetoothctl:

	#!/bin/bash

	# generate new personal ed25519 ssh keys
	ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <[email protected]>"
	ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <[email protected]>"

	# generate new host cert authority (host_ca) ed25519 ssh key
	# used for signing host keys and creating host certs
	ssh-keygen -t ed25519 -f manta_host_ca -C manta.network

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl

	rm -f out
	mkfifo out
	trap "rm -f out" EXIT
	while true
	do
	cat out \| nc -w1 -l 1500 > >( # parse the netcat output, to build the answer redirected to the pipe "out".
	export REQUEST=
	while read line
	do
	line=$(echo "$line" \| tr -d '[\r\n]')

	# Install Ubiquiti Unifi Controller on Ubuntu 20.04.
	# As tested on a fresh install of ubuntu-20.04.1-live-server, August 22nd 2020.
	# Thanks to https://gist.github.com/tmuncks for posting the updated install steps.

	sudo apt update
	sudo apt install --yes apt-transport-https

	echo 'deb https://www.ui.com/downloads/unifi/debian stable ubiquiti' \| sudo tee /etc/apt/sources.list.d/100-ubnt-unifi.list
	sudo wget -O /etc/apt/trusted.gpg.d/unifi-repo.gpg https://dl.ui.com/unifi/unifi-repo.gpg