Lathanao Lathanao

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

Setup fail2ban (v0.8.11) with ufw and nginx on Ubuntu 14.04

Install fail2ban & ufw

If you haven't already, install fail2ban and ufw:

sudo apt-get install fail2ban ufw

Now make a copy of the fail2ban configuration, and name it jail.local:

Install and configure Sendmail on Ubuntu

This should help you get Sendmail installed with basic configuration on Ubuntu.

If sendmail isn't installed, install it: sudo apt-get install sendmail
Configure /etc/hosts file: nano /etc/hosts
Make sure the line looks like this: 127.0.0.1 localhost yourhostname
Run Sendmail's config and answer 'Y' to everything: sudo sendmailconfig
Restart apache sudo service apache2 restart

	#find . -type f -name '*.png' -exec optipng -o5 -quiet -preserve {} \;
	#find . -type f -name '.jp' -exec mogrify -compress jpeg -quality 70 {} \;

	find . -type f -iname ".jpg" \| xargs mogrify -resize '1280x1280>'
	find . -type f -iname ".jpg" \| xargs jpegoptim --strip-all --max=90


	# With parallel
	find . -type f -iname ".jpg" -print0 \| parallel --progress -0 -j +0 "mogrify -resize 1280x1280\> {}"
	find . -type f -iname ".jpg" \| parallel --progress "jpegoptim --strip-all --max=65 {}"

	#!/bin/sh

	#######################################
	# Bash script to install an AMP stack and PHPMyAdmin plus tweaks. For Debian based systems.
	# Written by @AamnahAkram from http://aamnah.com

	# In case of any errors (e.g. MySQL) just re-run the script. Nothing will be re-installed except for the packages with errors.
	#######################################

	#COLORS

	<?php
	/**
	* Clean HTML string removing all element attributes and elements which are
	* not in the provided whitelist (but keeping their allowed children).
	*
	* @see https://github.com/alixaxel/phunction/blob/master/phunction/HTML.php
	* @param string $html to clean
	* @param array $whitelist
	*/
	function clean_html($html, array $whitelist)

	<html>
	<body>
	<p>Here are Webber’s points:</p>
	<ul>
	<li>If a method can be static, declare it static. Speed improvement is by a factor of 4.</li>
	<li>echo is faster than print.(<em>* compare with list from phplens by John Lim</em>)</li>
	<li>Use echo’s multiple parameters instead of string concatenation.</li>
	<li>Set the maxvalue for your for-loops before and not in the loop.</li>
	<li>Unset your variables to free memory, especially large arrays.</li>
	<li>Avoid magic like __get, __set, __autoload</li>

	#!/bin/bash


	if [ -z "$1" ]; then
	echo
	echo usage: $0 network-interface
	echo
	echo e.g. $0 eth0
	echo
	echo shows packets-per-second

	# forked from http://forge.mysql.com/tools/tool.php?id=137

	[client]
	#password = [your_password]
	port = 3306
	socket = /tmp/mysqld.sock

	# * Application-specific options follow here *

	#

	<?php

	// Source: http://www.jonasjohn.de/snippets/php/headers.htm

	// Use this header instruction to fix 404 headers
	// produced by url rewriting...
	header('HTTP/1.1 200 OK');

	// Page was not found:
	header('HTTP/1.1 404 Not Found');