How to Add Comments to IPTables Rules
Learn how to easily add comments to iptables rules to be a courteous Linux sysadmin. Adding comments is easy and a best practice.
How to Find Motherboard Model and Serial Number in Linux
If you ever wanted to update your BIOS or make any other hardware changes to your Linux system, you likely needed the motherboard information. There is a handy little command line tool called dmidecode that we have written about in the past. This program will...
7Zip 21.0 Provides Native Linux Support – How to Install and Use
7Zip version 21.0 provides native Linux support. Learn how to install 7Zip on Linux and the basics of creating and extracting 7z archives.
CrowdSec – Open Source Security Automation Tool
CrowdSec is a massively multiplayer firewall designed to protect Linux servers, services, containers, or virtual machines exposed on the internet with a server-side agent. It was inspired by Fail2Ban and aims to be a modernized, collaborative version of that intrusion-prevention tool. CrowdSec is free and...
How to Format a JSON File in Vim (vi editor)
The vi editor has been around since the mid 1970’s. It is still the most widely used text editor on UNIX/Linux systems. In the early nineties vim (vi improved) was released as a clone for vi with additional improvements. With an abundance pf plugins and...
Chromecast From a Linux PC – Allow Multicast on Firewall
In this Linux quick tip we show you how to allow multicast packages through your firewall to fix the no devices found chrome cast issue.
How to Install Netstat Command in Linux
The netstat command is a very useful tool used by Linux system administrators. It helps find important information about the network configuration, which process is bound to a specific port, and more. In recent years some distros have been replacing netstat with the ss command....
4 Way Honey Tokens Help Detect Cybercriminals
4 ways honey tokens can be used to detect cyber criminals. Learn what a honey token is and how it is used by cybersecurity professionals.