Website Notes


To create a favicon, use this site.

For Table of Contents, just use the Kramdown one. Jekyll uses Kramdown automatically.

Table of Contents

* Table of Contents

The line above will be used as a template for the entries.

Multiple themes with Sass

To create different CSS files that use different colours for themes but keep the rest of the style, you can use Sass Modules. Or at least you would if you were using Dart Sass.

Since I am not, I need to use import instead.

You need to set sass_dir in your _config.yml:

    sass_dir: ./_scss

You then include your main style sheet from each theme, defining the variables beforehand, eg:

$primary-color: #CC6200;

@import "library";

(If you’re using Jekyll, you’ll need two sets of --- on the top two lines.)

Then _library.scss in the folder you specified in your _config.yml would contain something like this:

$title-background-color: #21201B !default;
$background-color: #454545 !default;

body {
  margin: 0;
  line-height: 1.5;

  font-family: "Helvetica", "Arial", sans-serif;
  color: $background-color;
  background-color: $background-color;

(If you’re using Jekyll, you don’t need the ---s because this file isn’t processed directly by Jekyll, just by Sass.)

Websites with Linode

To setup the server:

  1. Getting Started
  2. How to Secure your Server
  3. A Tutorial for Using Fail2ban to Secure Your Server
  4. How to Configure a Firewall with UFW
  5. How to Install a LAMP Stack on Ubuntu 18.04

To add a website:

Reverse Proxying with Apache

In order to provide a server with HTTPS:

  <Location /data >
    ProxyPass http://localhost:8080
    ProxyPassReverse http://localhost:8080

(More info on this step here.)

Creating a user for SFTP uploads

Ubuntu seems to have SFTP support by default - it seems that this is through the sftp-server tool that is started by OpenSSH by default.

Creating the user

sudo useradd -m -d /home/ftp_test_peconn/ -s /bin/false ftp_test_peconn
sudo groupadd test_peconn_html
sudo chgrp -R test_peconn_html /var/www/html/
sudo chmod -R g+rw /var/www/html/
sudo usermod -a -G test_peconn_html ftp_test_peconn

We create a new user with a home directory (for the ssh key) and with false set as their login shell. We also create a group that will have access to the folder we want our stuff to end up.

Creating them a public key

On your local computer, run ssh-keygen -t rsa, making sure not to clobber your own SSH key in the process.

sudo mkdir -p /home/ftp_test_peconn/.ssh
sudo vim /home/ftp_test_peconn/.ssh/authorized_keys

And copy the public key into that file.

sudo chown -R ftp_test_peconn:ftp_test_peconn /home/ftp_test_peconn/.ssh
sudo chmod 700 /home/ftp_test_peconn/.ssh/
sudo chmod 600 /home/ftp_test_peconn/.ssh/authorized_keys

To check that you can log in from your computer:

lftp s -e 'set sftp:connect-program "ssh -a -x -i ftp/id_rsa"'

You can also try the following (but you’ll need to change the user’s shell to something other than /bin/false):

ssh -i ftp/id_rsa

If something goes wrong, check your SSH logs at /var/log/auth.log. If you get an error like:

User ftp_test_peconn not allowed because account is locked

You need to enable PAM on your SSH config:

sudo vim /etc/ssh/sshd_config
# change UsePAM to yes
sudo systemctl restart ssh.service

Doing Chroot