Linux

2021 Updated! Install WordPress on Ubuntu Server with add-on features as HTTPS support, SSL certificate and HTTP2 supports

If we carefully followed all my steps above , you should have a running wordpress page by now.
You might need to run as the wordpress uses php file extensions.
sudo rm -rf /var/www/html/index.html

Enable HTTPS supports:

Create a ssl-params.conf file and add the following definition below to it, then save it.

Next thing to do is create a backup of the original default-ssl.conf file.

Then modify it accordingly, we are deploying a wordpress site in this particular example we use the following adjustments.

Enable HTTP2 supports:

It is also recommended adding strong ciphers for Apache to increase SSL Security on the server.
Part of my Best Practices to deploy a secure webserver, virtual personal server or database serve is to add the recommended ciphers from SSL Server Test.

How to Enable HTTP2 in Apache 2.4 on Ubuntu

vnStat – a brilliant open source console-based network traffic monitor for Linux

vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network traffic for the selected interface(s).
Features:
Quick and simple to install and get running.
Gathered statistics persists through system reboots.
Can monitor multiple interfaces at the same time.
Several output options.
Summary, 5 minute, hourly, daily, monthly, weekly, yearly, top days.
Optional png image output (using libgd).
Data retention duration is fully user configurable on the fly.
Months can be configured to follow billing period.
Light, minimal resource usage.
Same low cpu usage regardless of traffic.
Can be used without root permissions.
Online color configuration editor.
humdi.net/vnstat/

Hardware Probe Tool for Linux

This project really deserves a post, just came across with it and will definitively use it. The HW PROBE project aim to collect hardware details of Linux-powered computers over the world and help Linux users and developers to collaboratively debug hardware related issues.
github.com/linuxhw/hw-probe

There are other very useful tools on their main git repository, if you need to collect more specific hardware details, these tools will come very useful.
github.com/linuxhw

Install Oracle Java 12 on Ubuntu

You need to add the PPA. (Surce: “Linux Uprising” team)
Install:

For multiple java versions, install [or uninstall] oracle-java12-set-default package to set [or not] Java 12 as default.
Verify:

Remove it: … use the following command if you need to uninstall it: