trimstray

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

How to improve NGINX performance, security, and other important things.

A collection of Linux Sysadmin Test Questions and Answers. Test your knowledge and skills in different fields with these Q/A.

This guide details creating a secure Linux production system. OpenSCAP (C2S/CIS, STIG).

My simple Swiss Army knife for http/https troubleshooting and profiling.

Nmap on steroids. Simple CLI with the ability to run pure Nmap engine, 31 modules with 459 scan profiles.

Simple checklist to help you deploying the most important areas of the GNU/Linux production systems - work in progress.

Iptables Essentials: Common Firewall Rules and Commands.

Create multiple TOR instances with a load-balancing.

Collection of IT whitepapers, presentations, pdfs; hacking, web app security, db, reverse engineering and more; EN/PL.

Open source security auditing tool to search and dump system configuration. It allows you to generate reports in HTML or RAW-HTML formats.

Open source tool to help you build a valid SSL certificate chain.

Wipe, reinstall or restore your system from running GNU/Linux distribution. Via SSH, without rebooting.

OpenSSH 2.3 up to 7.4 Mass Username Enumeration (CVE-2018-15473).