Natan Felles natanfelles

Instalación Server Linux LEMP

Es una guia instructiva que sirve de ayuda memoria para el paso a paso de la instalación de LEMP (Linux Nginx MariaDB PHP7) sobre Ubuntu 18.04

Configurar Hostname

hostnamectl set-hostname hostname.domain.tld

.nil? can be used on any object and is true if the object is nil.

.empty? can be used on strings, arrays and hashes and returns true if:

String length == 0
Array length == 0
Hash length == 0

Running .empty? on something that is nil will throw a NoMethodError.

Git Cheat Sheet

Commands

Getting Started

git init

or

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

This page provides a full overview of PHP's SessionHandler life-cycle - this was generated by a set of test-scripts, in order to provide an exact overview of when and what you can expect will be called in your custom SessionHandler implementation.

Each example is a separate script being run by a client with cookies enabled.

To the left, you can see the function being called in your script, and to the right, you can see the resulting calls being made to a custom session-handler registed using session_set_save_handler().

Bookmarklet

Copy and paste this into a bookmark:

javascript:!function(d){d.head.appendChild(d.createElement("style")).innerText="html,img,video{-webkit-filter:invert(1)hue-rotate(180deg);filter:invert(1)hue-rotate(180deg)}body{background:#000}"}(document);

Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Creating a VM

vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

Starting a VM

vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)

How to setup gitlab without embedded nginx

Install via omnibus-package

install the normal way:

wget https://downloads-packages.s3.amazonaws.com/ubuntu-14.04/gitlab_7.7.2-omnibus.5.4.2.ci-1_amd64.deb & > /dev/null

sudo apt-get update
sudo apt-get upgrade


	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="utf-8">
	<title>Bootstrap all elements</title>
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

	#!/usr/bin/env php
	<?php
	/*
	* Filter to fill the IP gaps in a MaxMind GeoLite tables.
	*
	* For every missing range in the file it puts a dummy one.
	*/
	$types = [
	'asnum' => [0, 0, 1, "%s,%s,\"-\"\n"],
	'blocks' => [2, 0, 1, "\"%s\",\"%s\",\"1\"\n"],