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How to setup Let's Encrypt for Nginx on Ubuntu 18.04 (including IPv6, HTTP/2 and A+ SLL rating)

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Virtual hosts

Let's say you want to host domains first.com and second.com.

Create folders for their files:

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Docker Commands, Help & Tips

Show commands & management commands

$ docker

Docker version info

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Comparison of ASP.NET and Node.js for Backend Programming

We will compare ASP.NET and Node.js for backend programming.
Source codes from examples.

Updates

This document was published on 21.09.2015 for a freelance employer. Some changes since then (14.02.2016):

1. Koa.js no longer uses co-routines, it has switched to Babel's async/await. yield and await are used almost in the same way, so I see no point to rewrite the examples.

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nodejs
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt-get install -y nodejs

nginx
sudo apt-get update
sudo apt-get install nginx

check
systemctl status nginx

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iisnode-full-v0.2.21-x64 (1)
node-v10.11.0-x64
rewrite_amd64_en-US (1)

var express = require('express');
var fs = require('fs');

var app = express();

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import { Component } from '@angular/core';
import { Meta } from '@angular/platform-browser';

@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class HomeComponent {
  constructor(private meta: Meta) {

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const path = require('path');
const webpack = require('webpack');

const apiUrl = 'http://localhost:3000';

module.exports = {
  outputDir: './dist/public',
  chainWebpack: config => {
    config.plugin('html').tap(([options]) => [
      Object.assign(options, {

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const path = require("path");
const fs = require("fs");
const _ = require("lodash");
const config = require("./crwl-config.json");
const Url = require("url");
const moment = require('moment');

module.exports.generate = urls => {
  var uris = urls.map(url => {
    return `<url>

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http://localhost:3000/upload


node:


var express = require('express');
var app = express();
var path = require('path');

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import { Component, OnInit, Input, ViewEncapsulation, ChangeDetectorRef, Output, EventEmitter } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-user',
  encapsulation: ViewEncapsulation.Native,
  template: `
    {{user|json}}
  `,