Getting started with FirewallD | Here is a quick how-to to enable a port or service with FirewallD!
How To Create a systemd Service in Linux (CentOS 7) | Creating a systemd service in Linux is much easier than writing init scripts. Here is an example to create an iperf3 service for systemd!
How to run node.js app in supervisor behind nginx on Debian Wheezy | For Linux distros without systemd, supervisor can be used to run your node.js app. I’ll show you how to set this up all behind nginx!
nmap UDP Port Scan Example | By default nmap performs a TCP scan only. I’ll show you how to scan for UDP ports with nmap! The syntax is $ sudo nmap -sU -p port target Example: $ sudo nmap -sU -p 3478 192.168.1.25 Starting Nmap 6.00 ( http://nmap.org ) at 2012-06-13 20:43 EDT Nmap scan report for example.com (192.168.1.25) Host is