Binary Lawyer

Aerostat’s Guide To Linux

(Ubuntu edition)

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A Simpler Guide To Linux.

an Aerostat & Co. pub.

Version 0.9

Setting up Ubuntu 20.14 LTS

This is a guide to setting up and hardening a Linux server. This guide has links to all kinds of things but it will never be complete.

That’s where you come in.

You can send in your links to this guide or simple design suggestions. It’s all welcome and appreciated. This guide was published in GitHub so that Aerostat and LOCM folks can contribute to something that is a public good. If you want to donate to this publication, that’s perfectly fine. This guide will have a few wallets (ETH, Near, etc.) for crypto donations, art, voxels, etc. If you’re so inclined, send a message and I will send back the relevant crypto wallet address. Feel free to use this guide and fork it as much as you like. If it helps you to learn Linux and Git a little bit faster then that makes this whole project worth it.

This version is focused on hardening the servers.

Create a repository from this template

Go to this repository page on Github and click the Use this template button on the top right of the page.

LOCKING DOWN THE OS

Lock the boot directory

The boot directory contains important files related to the Linux kernel, so you need to make sure that this directory is locked down to read-only permissions by following the next simple steps. First, open the “fstab” file.

Encrypt Data Communication For Linux Server

Use scp, ssh, rsync, or sftp for file transfer. You can also mount remote server file system or your own home directory using special sshfs and fuse tools.

Links

  1. Book of Zeus
  2. Server Hardening Checklist
  3. Bootstrap 4 template project for Github Pages and Jekyll.
  • A full Bootstrap 4 theme usable both on Github Pages and with a standalone Jekyll.
  • Recompiles Bootstrap from SCSS files, which allows to customize Bootstrap’s variables and use Bootstrap themes.
  • Full support of Bootstrap’s JavaScript plugins.
  • Supports all features of Github Pages and Jekyll.

Setup Guide

Create a repository from this template

Go to this repository page on Github and click the Use this template button on the top right of the page.

Choose a name for your repository

Here we have two possibilities:

  • You want a user or organization website

    In this case your website’s URL will be http://<your username>.github.io where <your username> is your Github user name.

    Choose the repository name <your username>.github.io.

  • You want a project website

    In this case your website’s URL will be http://<your username>.github.io/<whatever you want> where <whatever you want> can be any valid name for a Github repository.

    Choose the repository name <whatever you want>.

Activate Github Pages on your repository

Go in the Settings page of your repository, in the Github Pages, under the Source parameter, choose master branch then Save.

That’s it

Your Github Pages website with customizable Bootstrap 4 is now up and running, you can access it using the URL displayed by Github in the Github Pages settings.

Customization Guide

Modify the configuration

You should at least edit the _config.yml file to edit your website’s metadata, like the title, description and repository URL.

Change your theme

This website uses the Minty Bootstrap theme by default. And you don’t want to use the same theme everyone else uses do you?

You can of course modify anything in the _includes, _layouts and _sass folders to customize both the HTML or CSS of your website, possibly referring to the Bootstrap documentation or the Jekyll documentation when needed. This is a normal part of web development and it is outside the scope of this guide.

But if you don’t know where to start I can recommend you to import a theme from Bootswatch.

  • Go on Bootswatch and choose a theme that you like.
  • Using the top bar, download its _variables.scss and _bootswatch.scss files.
  • Copy the content of _variables.scss in _sass/_variables.scss.
  • Copy the content of _bootswatch.scss in _sass/_bootstrap_customization.scss.

That’s it, you now have a totally different appearance for you website.

Modify the content

You probably don’t want the present guide to be the front page of your website, so you should edit the index.md file. You probably also want to edit or delete the CONTRIBUTING.md, README.md and LICENSE.md files.

Aside from that you can of course create new pages and posts like with any Jekyll website by refering to the Jekyll documentation.

Run Jekyll on your computer to speed up testing

Editing your website’s content or theme directly on Github is completely possible but, due to the time Github Pages takes to update your website, it will probably be much more effective to work using a local Jekyll installation.

To do so:

  • Install the requirements for Jekyll.
  • Type bundle install at the root of your project to install the necessary Ruby dependencies.
  • Type bundle exec jekyll serve to launch the test Jekyll web server that will re-compile your work if you edit it.
  • You can then open http://localhost:4000 in your web browser to see your work-in-progress website.

Please note that, to ensure maximum compatibility with Github Pages, the Gemfile of this project references the github-pages gem, not Jekyll directly. This implies some differences in behavior compared to the official documentation of Jekyll.

Known issues

  • Bootstrap 4 should normally be post-processed using Autoprefixer. Even if it is possible to use autoprefixer with Jekyll, it is not possible with a classic Github Pages installation without adding some kind of pre-processing before publication. Since this project mostly aims compatibility with Github Pages I prefer to keep it that way. The consequences of this choice is that some Bootstrap features could not work as expected on older browsers.

How to contribute

Like this project ? Consider adding a star on Github.

You can also see the contribution guide.

Websites using Bootstrap 4 Github Pages

I’m a fan of Github Pages for the possibilities it offers to anyone to publish a website for free. I have multiple projects that could be of interest if that’s your case too:

Binary Lawyer

A Bootstrap 4 start up project for Jekyll and Github Pages

Powered by Bootstrap 4 Github Pages

GitHub Repo stars