Banner Grabbing - Penetration Testing Basics
Learn how to gain information about a system using the banner grabbing technique executed via telnet. This is part of a penetration testing basics series.
NMap - A Basic Security Audit of Exposed Ports and Services
Learn how to use NMap to do basic scans for open ports. Use additional NMap vulnerability scanning scripts for important security audits.
5 Non-Technical Tips for the Linux Beginner
Sometimes your mind is the best tool. Here are five mental processes that can aid you in learning Linux. 5 non-technical tips for the Linux beginner.
Linux Cheat Sheets for Quick Access from the Command Line
Use the cheat utility to keep Linux cheat sheets handy on the command line. Personalize your cheat sheets by editing and creating them to suit your needs.
xguest - Guest Access / Kiosk Mode on a Linux System
Easily create a restricted user to allow guest access to your system or to create a Linux based kiosk. The xguest package makes this a snap!
du Command - Check Disk Usage on the Command Line
How you can check the disk usage of a directory on Linux systems by using the command line interface. Learn how to use the du command options with examples.
Introduction to DNF History - How to Rollback System Updates
The DNF History command allows you to view, redo, undo and rollback updates and installation of packages on a Linux system.
Screen Command - Beginners Guide to Terminal Multiplexing
Learn how to use Linux Screen to detach and reattach terminal sessions, create split screen terminal sessions and the basics of terminal multiplexing.
Create a Custom MOTD or Login Banner in Linux
Back in the old days, before graphical interfaces, system administrators would leave a message for users by using the Message of the Day "MOTD" file. These days the motd still exists but is rarely ever used. I personally haven't seen someone use the motd file...
