The articles, commands and guides on this website are for education and lab practice.
Use on systems you are allowed to test
Tools such as Nmap, Fail2ban or firewall rules should only be used on devices and networks that you own or have clear, written permission to test. Do not use anything on this site to access or disrupt systems without authorisation. You are responsible for following the laws that apply to you.
No guarantee
I write from my own lab experience and I try to keep the content correct, but software versions and settings change. Commands may behave differently on your equipment. Try changes in a test environment first, keep backups, and check the official documentation before changing a production system. The content is provided “as is”, without warranty of any kind.
No professional advice
This site does not replace professional security, legal or IT advice for your organisation.
Affiliate and product links
Some articles link to my own guides on Gumroad. Buying is optional and the articles are free to read.
Questions? Contact me.