Best 2026 Pi-hole blocklists (and how to install them)
Updated June 2026: the best Pi-hole blocklist setup for most home networks is still a small, maintained set of quality lists rather…
What Is NAT? Network Address Translation Explained
What is NAT? Learn how network address translation works, why home routers use it, how it affects port forwarding, double NAT, CGNAT,…
Double NAT Explained: How to Detect and Fix It
Double NAT explained clearly: how to detect two NAT layers, tell it apart from CGNAT, and fix port forwarding, gaming, VPN, and…
Port Forwarding Not Working: How to Fix Router, NAT, Firewall, and CGNAT Issues
Port forwarding looks simple until it does not work. You create the rule, point it at the right device, test from outside…
DNS Server Not Responding: How to Fix It
Fix the DNS server not responding error with a practical troubleshooting checklist for Windows, macOS, Linux, routers, VPNs, IPv6, and public DNS.
VPN Tunnel Up but No Traffic: How to Fix IPsec Routing Issues
The tunnel shows established. IKE negotiation completed successfully. Phase 2 is up on both sides. But ping fails, and nothing is getting…
How to Install and Configure Pi-hole on Raspberry Pi OS
Pi-hole is used by many people around the world for many purposes. Most commonly, it’s used as an ad-blocker on your local…
How to form a BGP over IPsec tunnel using BIRD and Strongswan
Route based VPNs are becoming more and more common, and it’s important to know how to configure an eBGP peer over an…
How to Install and Configure FreeRADIUS (RADIUS) on Raspberry Pi OS
FreeRADIUS is an open sourced RADIUS server that can be ran on any Linux distribution. It’s exceptionally easy to set up and…
How to form an eBGP peer with Cisco Meraki and a Raspberry Pi using the BIRD Routing Daemon
This post will show you how to form an eBGP relationship between a Cisco Meraki MX and a Raspberry Pi. For this…
