DominicBreuker

iptables cheat sheet

Concepts

iptables defines tables, which group features:

• filter: use it to filter traffic
• nat: use it to implement NAT
• raw: use it to define which connections iptables should track (stateful firewall)
• mangle: use it to change some fields in packets (e.g., TTL)
• security: use it to define access control

hoandang

RUN apt update
RUN apt upgrade -y
RUN apt install -y apt-utils
RUN a2enmod rewrite
RUN apt install -y libmcrypt-dev
RUN docker-php-ext-install mcrypt
RUN apt install -y libicu-dev
RUN docker-php-ext-install -j$(nproc) intl
RUN apt-get install -y libfreetype6-dev libjpeg62-turbo-dev libpng12-dev
RUN docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ 

hassansin

XDebug

A PHP extension that allows you to:

1. walk through your code by Remote Debugging
2. find bottlenecks in your application by Profiling
3. find Code Coverage in a single request
4. trace your application by logging all function calls

sergeyklay

Multiple PHP versions using phpenv and php-build

Install dependecies

Debian/Ubuntu users

sudo apt install \
  autoconf \
  bison \

bladeSk

Deploying Laravel on a shared hosting using only .htaccess

Making Laravel work on a shared hosting can be troublesome, because Laravel needs to have its document root set to the public directory. This may not be configurable by a user or even desirable, when the server is hosting multiple websites.

Here's a simple method using only a .htaccess file placed in Laravel's root directory - e.g. alongside app, bootstrap, config, ... No changes whatsoever are necessary to your code.

The file rewrites all the requests so that requesting /file.png would in fact return /public/file.png and anything else is routed to /public/index.php. This also ensures that nothing outside the public folder can be accessed, thereby protecting any sensitive files like .env or database/*.

The simple method

davydany

IP Tables (iptables) Cheat Sheet

IPTables is the Firewall service that is available in a lot of different Linux Distributions. While modifiying it might seem daunting at first, this Cheat Sheet should be able to show you just how easy it is to use and how quickly you can be on your way mucking around with your firewall.

Resources

The following list is a great set of documentation for iptables. I used them to compile this documentation.

• How-To Geek: The Beginner’s Guide to iptables, the Linux Firewall: https://www.howtogeek.com/177621/the-beginners-guide-to-iptables-the-linux-firewall/
• IPTables Essentials: Common Firewall Rules and COmmands https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands

binarymax

;(function(global){
	global.module = {};
	global.require = function(){};
	Object.defineProperty(global.module,'exports',{
		set:function(m) { 
			if (typeof m === 'function') {
				var str = m.toString();
				var name = str.substring(9,str.indexOf('(')).replace(/\s+/,'');
				global[name] = m;
			} else if (typeof m === 'object') {

4sskick

As we knew that 'let & const' are not coming in ES5, those are coming in ES6 since 2015. 
So to make these work like in latest version ECMA Scripts 2015, we can define it by ourself.

'const' - ES6
const a = 1;

'const' - ES5
var a = (function(){
  var a = 1;
  return function(){

rgl

bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' localhost:9000)" != "200" ]]; do sleep 5; done'

# also check https://gist.github.com/rgl/c2ba64b7e2a5a04d1eb65983995dce76

bsara

Setup SSH Authentication for Git Bash on Windows

Prepararation

0. Create a folder at the root of your user home folder (Example: C:/Users/uname/) called .ssh.
1. Create the following files if they do not already exist (paths begin from the root of your user home folder):

• .ssh/config