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What You’ll Find Here:
Homelab Builds
From Raspberry Pi setups to full-blown Proxmox servers
UFW for Homelabs – Restrict Services to Your LAN Subnet (Ubuntu Firewall Guide)
Configure UFW on Ubuntu the way a homelab actually needs it: default-deny, rate-limited SSH, and…
SSH Configuration Guide: Ports, Keys, and Security Hardening
SSH is how you manage every Linux server. If someone compromises your SSH access, they…
Linux File Permissions Explained: chmod, chown, and the Permission Calculator
“Permission denied.” The two words every Linux user learns to hate. But file permissions are…
How to Remove Files and Directories in Linux (rm, rmdir, find)
Deleting files in Linux is permanent. There is no recycle bin, no undo, no “are…
SSH from Windows to Ubuntu: PowerShell, WSL, and PuTTY
SSH from Windows 10 / 11 to Ubuntu using built-in OpenSSH, WSL, or PuTTY. With…
20 Common SSH Errors on Ubuntu (and How to Fix Each One)
Twenty common SSH errors on Ubuntu with diagnoses and fixes. Connection refused, permission denied, host…
Cloud Projects
Real experiments in Azure, AWS, GCP & more
Azure Subscription vs Resource Group: A Decision Guide (2026)
When should you create a new Azure subscription versus a new resource group – and…
Which Azure Landing Zone Do You Need? A Scoping Guide (2026)
“Landing zone” means four different things in Azure – from a single subscription to a…
Identity Is the New Castle Walls: Machine Identity, Zero Trust, and How to Learn It in a Homelab
The network perimeter dissolved and identity replaced it. Why machine identity now outnumbers humans, what…
The Birth of Cloud Computing: From MIT Time-Sharing to Hyperscalers
Every EC2 Instance You’ve Ever Launched Uses 60-Year-Old Concepts Cloud computing feels modern. AWS launched…
Azure Storage: Blob, Files & Security Configuration (AZ-104)
Master Azure Storage – storage accounts, blob tiers, Azure Files, SAS tokens, and security. Complete…
Azure Virtual Networks: VNets, NSGs, and Peering (AZ-104)
Master Azure networking – virtual networks, subnets, NSGs, peering, and hybrid connectivity. Complete guide for…
Cybersecurity & Automation
Learn how to protect, automate, and scale
UFW for Homelabs – Restrict Services to Your LAN Subnet (Ubuntu Firewall Guide)
Configure UFW on Ubuntu the way a homelab actually needs it: default-deny, rate-limited SSH, and…
20 Common SSH Errors on Ubuntu (and How to Fix Each One)
Twenty common SSH errors on Ubuntu with diagnoses and fixes. Connection refused, permission denied, host…
SSH Tunneling Explained: Local, Remote, and Dynamic Forwards
SSH tunneling on Ubuntu explained with worked examples. Local forwards (-L), remote forwards (-R), dynamic…
SCP and SFTP on Ubuntu: Transfer Files Over SSH (with Examples)
Transfer files over SSH on Ubuntu using SCP, SFTP, and rsync. Worked examples for upload,…
Fail2ban for SSH on Ubuntu: Setup, Tuning, and the Lockout Trap
Install and configure fail2ban for SSH on Ubuntu. Default jail config, custom ban times, whitelisting…
SSH Server Hardening: 8 Settings That Stop Brute-Force Logins
Eight SSH server settings that close the brute-force vector. Disable password auth, restrict users, change…
Career Content
CV advice, interview tips, and portfolio walkthroughs
Azure Subscription vs Resource Group: A Decision Guide (2026)
When should you create a new Azure subscription versus a new resource group – and…
Which Azure Landing Zone Do You Need? A Scoping Guide (2026)
“Landing zone” means four different things in Azure – from a single subscription to a…
Identity Is the New Castle Walls: Machine Identity, Zero Trust, and How to Learn It in a Homelab
The network perimeter dissolved and identity replaced it. Why machine identity now outnumbers humans, what…
Windows Security Hardening: LAPS, Tiered Access & Defense in Depth
Harden Windows Server and Active Directory against modern attacks. LAPS, Credential Guard, tiered access, and…
Windows DNS & DHCP: Active Directory Networking Essentials
Configure DNS and DHCP for Active Directory environments. AD-integrated zones, DHCP scopes, failover, and troubleshooting…
Group Policy Deep Dive: Create, Link & Troubleshoot GPOs
Master Group Policy – create GPOs, understand inheritance, troubleshoot issues. Essential skills for Windows enterprise…
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