Understanding the Active Directory Tier Model In this video, I walk through the fundamentals of the Active Directory Tier Model — what it is, why it matters, and how it helps protect privileged accounts and critical assets in your Windows environment.

90 days to cybersecurity mastery. Day-by-day hands‑on lessons to transform theory into practice

ProxLB v1.1.3 just got released! ProxLB is a VM load-balancer for your Proxmox clusters also supporting affinity & anti-affinity rules. GitHub: github.com/gyptazy/ProxLB Version 1.1.3: github.com/gyptazy/ProxLB…

public list of free APIs for software and web projects

step-by-step Linux server security guide

real-time Proxmox monitoring with alerts and webhooks

Active Directory hardening is free…outside of your time. Overall - PingCastle Passwords - FGPP, LAPS, Lithnet Permissions - ADeleg/ADeleginator Applocker - Applocker Inspector/Applocker gen ADCS - Locksmith Logon scripts - ScriptSentry GPO - GPOZaurr Baselines - CIS/Microsoft

Fully-replicated DNS, DHCP, and TFTP server with metrics and ad-blocking

CSV editor for huge files, open source, works on Mac, Windows, Linux

centralized dashboard for linux patch monitoring and inventory

If security were easy, there wouldn't be a multi-billion dollar industry to "certify" those who "know their stuff"

Guide to securing a Linux server

Manage WireGuard on Linux

Latency vs. Throughput Ever wondered why your app feels slow even when the bandwidth looks fine? Latency and throughput explain two very different stories of performance. Latency measures the delay per packet. It is what users feel when they click a button. It’s responsiveness.

Our Docker images had 847 vulnerabilities. All from the base image. We were using ubuntu:latest. The fix: - Switched to distroless images - Reduced image size from 420MB to 28MB - Vulnerabilities dropped to 3 - Container startup time improved by 60% Then discovered our CI/CD

New Blog Post - Part 4/4of the series around #Object Storage for #Veeam (Veeam® Software) with the topic around "Benchmarking is finished - virtualhome.blog/2025/11/04/vee… Nikola Pejková 🧡🧡🧡🎗️🇺🇦🕊 Madalina Cristil #VeeamVanguard #Veeam #V100 #blogpost

🍯 If you've never seen or worked with a Honeypot, watch this video. It covers how to setup almost 20+ honeypots (and visualize the data) to trap attackers. Video: youtube.com/watch?v=FjZmhI…

Regular reminder… this hardening series by Jerry Devore is super awesome. There’s no way you won’t learn things by reading these. Part 1 - Disabling NTLMv1 Part 2 - Removing SMBv1 Part 3 - Enforcing LDAP Signing Part 4 - Enforcing AES for Kerberos Part 5 - Enforcing LDAP

Reduced Docker image size from 2.1GB to 180MB. Deployments 8x faster. The original Dockerfile: - Started with ubuntu:latest - Installed everything via apt - Included dev dependencies - Copied entire project directory - Left build artifacts - No layer optimization The problems:

How Docker Run Command Works 🧐 When you "docker run nginx" from the terminal, it may feel like launching a regular foreground process - stdin, stdout, and stderr get streamed back and forth, and you can kill it with Ctrl+C. But what happens internally is much more involved 👇