Installation: sudo apt update sudo apt install s3cmd -y OR sudo apt install python3-pip sudo […]
IPTables Cheat Sheet
IPTables uses the filter to act as a firewall but also controls the routing of […]
Snort (IDS/IPS) on pfSense 2.5.0
Snort is the foremost Open Source IPS (Intrusion Prevention System) in the world. It uses […]
Running MacOS in VirtualBox on Linux
This step-by-step will work on VirtualBox 5.x and 6.x for macOS Sierra 10.12, macOS High […]
E-mail Backup Server with Postfix on Ubuntu
Add another MX record on the domain DNS with a priority different (e.g. 10) from […]
Setting Up a Content Delivery Network (CDN) with Cloudflare
A CDN is a group of servers distributed around the world. It improves your website’s […]
Configuring IP Manually and Removing IPv6 from a Linode VM
In order to set up an Active Directory / Domain Controller on the cloud assigning […]
Linux Active Directory / Domain Controller (AD-DC) with Zentyal
Zentyal is an open-source email and groupware solution. It has its own Ubuntu-based distribution but […]
Installing a GUI on Ubuntu Server
Installing a Graphical User Interface (GUI) on a Linux Server instance is a method to […]
Linux as Active Directory / Domain Controller (AD-DC) Replication
sudo apt update && sudo apt upgrade -y sudo hostnamectl set-hostname ad1 sudo nano /etc/hosts […]