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Linux Networking

N. P. O'Donnell, 2021

Network Interfaces

Bring eth0 interface down:

WARNING: If you do this remotely (like through an SSH connection), it will disconnect you...

Docker Python API Cheatsheet

N. P. O'Donnell, 2021

Installing and Importing

Installing:

pip install docker

Virtualization Notes

N. P. O'Donnell, 2021

Find out if your x86 CPU supports KVM Virtualization

egrep -c '(vmx|svm)' /proc/cpuinfo

Xen Cheatsheet

N. P. O'Donnell, 2021

Run without `sudo`

There may be other ways to do this, but I use the following alias:

alias xen="sudo xen $@"

LUKS Encryption Cheatsheet

N. P. O'Donnell, 2021

Before you do anything, ensure you have cryptsetup installed:

sudo apt-get install -y cryptsetup

Uniswap v3 Notes

N. P. O'Donnell, 2022

	#!/usr/bin/env bash
	#
	# Creates a persistent, SSHable ubuntu 21.10 in a container, including tmux.

	docker stop my-ubuntu-ctr
	docker rm my-ubuntu-ctr
	docker rmi my-ubuntu

	docker build -t my-ubuntu - << HERE
	FROM ubuntu:21.10

	#!/usr/bin/env bash

	NTOK=3

	do_cmd() {
	echo "Command start $1"
	sleep 5
	echo "Command end $1"
	return 1
	}

	#!/usr/bin/env bash
	#
	# Switch between Wireguard tunnels located in /etc/wireguard/
	# Each tunnel should be defined with a config file, eg. wg0.conf
	#
	# N. P. O'Donnell, 2022

	if [[ $# -ne 1 ]]; then
	echo "Usage: $0 [OPTIONS] [<new tunnel>]"
	echo

	<!DOCTYPE html>
	<html>
	<head>
	<style>
	:root {
	--header-height: 50px;
	--footer-height: 60px;
	--max-page-width: 700px;
	}
	* {

npodonnell npodonnell

Linux Networking

Network Interfaces

Docker Python API Cheatsheet

Installing and Importing

Virtualization Notes

Find out if your x86 CPU supports KVM Virtualization

Xen Cheatsheet

Run without `sudo`

LUKS Encryption Cheatsheet

Uniswap v3 Notes

Links

Constant Product Formula (CPF)

npodonnell npodonnell

Linux Networking

Network Interfaces

Docker Python API Cheatsheet

Installing and Importing

Virtualization Notes

Find out if your x86 CPU supports KVM Virtualization

Xen Cheatsheet

Run without sudo

LUKS Encryption Cheatsheet

Uniswap v3 Notes

Links

Constant Product Formula (CPF)

Run without `sudo`