Setting up MongoDB on Ubuntu

(MongoDB: Install MongoDB Community Edition on Ubuntu)
(Linode: Install MongoDB on Ubuntu 16.04 (Xenial))
(Digital Ocean: How To Install MongoDB on Ubuntu 14.04)

Before You Begin

  1. Check for updates
    sudo apt-get update && sudo apt-get upgrade

Add the MongoDB repository

  1. Import the MongoDB public GPG key for package signing
    sudo apt-key adv --keyserver hkp:// --recv 0C49F3730359A14518585931BC711F9BA15703C6
  2. Add the MongoDB repository to your sources.list.d directory
    echo "deb [ arch=amd64,arm64 ] xenial/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
  3. Update your repositories. This allows apt to read from the newly added MongoDB repo
    sudo apt-get update
  4. Install MongoDB
    sudo apt-get install mongodb-org
  5. Enable auto-start on reboot
    sudo systemctl enable mongod.service
  6. Open a port in ufw
    sudo ufw allow 27017

Running MongoDB

  1. Start MongoDB
    sudo service mongod start
  2. Verify MongoDB started
    sudo nano /var/log/mongodb/mongod.log
    and look for
    [initandlisten] waiting for connections on port 27017
  3. Stop MongoDB
    sudo service mongod stop
  4. Restart MongoDB
    sudo service mongod restart

Setup MongoDB users

  1. Open MongoDB
    mongo --port 27017
  2. Create an admin database
    use admin
  3. Add a mongodbAdminUsername and mongodbAdminPassword (letters and numbers, no funny characters)
    db.createUser({user: "mongodbAdminUsername", pwd: "mongodbAdminPassword", roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]})
  4. Exit
  5. Restart MongoDB
    sudo service mongod restart

Mini series

  1. Setting up a server at Linode
  2. Install Let’s Encrypt to Create SSL Certificates on Ubuntu
  3. Setting up MongoDB on Ubuntu
  4. Setting up nginx on Ubuntu for parse-server
  5. Setting up parse-server on Ubuntu

Transparently redirect your root directory to a subdirectory

DreamHost has instructions here.
Make a text file called .htaccess with the following code and upload it to the domain’s root directory.

RewriteEngine on
RewriteBase /

RewriteCond %{REQUEST_URI} !^/blog/

# Rewrites all URLS [Replace "domain" with the actual domain, without the TLD (.com, .net, .biz, etc)]
RewriteCond %{HTTP_HOST} ^(www\.)?domain\.

# Rewrite all those to insert /folder
RewriteRule ^(.*)$ /blog/$1 [L]


RewriteEngine on
RewriteCond %{HTTP_HOST} example\.com [NC]
RewriteCond %{REQUEST_URI} ^/$
RewriteRule ^(.*)$ /blog/$1 [L]

Code snippets

Adding code snippets to WordPress

  • Search plugins for syntax.
  • Install Crayon.
  • Read documentation.
  • Use <pre> tags in “Text” mode as shown below.

<pre class="lang:swift" title="A snippet of code">
import UIKit
class SampleClass: NSObject {
var variable:Double

  • End up with something like this:
import UIKit

class SampleClass: NSObject {
    var variable:Double

It’s that easy!