This post will download an ISO installation of TrueNAS and boot it to install in the Linode and DigitalOcean cloud […]
Xen Cloud Platform (XCP-ng) + Xen Orchestra Appliance (XOA)
XCP-ng is an OpenSource virtualizer type 1 (runs on bare metal) and the best way to manage it is using […]
Getting Reverse Shells
Reverse Shell is useful to pass through router and firewalls that may allow outbound connections but not inbound ones. Listener: […]
SSH Audit Server and Client Ubuntu 20.04
Installing the SSH Audit tool: sudo snap install ssh-audit OR pip3 install ssh-audit OR docker pull positronsecurity/ssh-audit Auditing SSH hosts: […]
Reverse Proxy with NGINX and SSL/TLS (Let’s Encrypt)
In this tutorial, we will go through: Install and configure NGINX, Install and configure SSL/TLS, Configure NGINX as a reverse […]
Setting Up SELinux on Ubuntu 20.04
SELinux is an upgrade to the file system that creates labels to enhance the policies for groups and users. Created […]
SED Cheat Sheet – Stream Editor with RegEx
Sed is a text/string editor command-line tool. Follow the most basic commands: sed ‘s/LOOKFOR/REPLACE/‘ file.txt reading the file, look for a […]
Installing Latest cPanel + WHM on CentOS 8
cPanel has only one problem: it is not open source, neither free. But if you want to use it to […]
S3CMD Cheat Sheet for Amazon S3 Object Storage
Installation: sudo apt update sudo apt install s3cmd -y OR sudo apt install python3-pip sudo pip install s3cmd Commands: s3cmd […]
E-mail Backup Server with Postfix on Ubuntu 20.04
Add another MX record on the domain DNS with a priority different (e.g. 10) from the main server (zero). 0 […]