Posted inNetworking
Netplan on Ubuntu: A Pro’s Guide to YAML Networking
Ditch the old /etc/network/interfaces. Learn how to use Netplan on Ubuntu to configure static IPs, DHCP, and DNS using clean YAML syntax while avoiding common pitfalls.
Posted inNetworking
Build a Secure Enterprise WiFi with WPA3 and 802.1X on Linux: A hostapd and VLAN Guide
Ditch shared WiFi passwords for good. This guide walks you through setting up WPA3-Enterprise and 802.1X on Linux using hostapd and FreeRADIUS for secure, individual user logins and VLAN isolation.
Posted inNetworking
Ditch the Subscription: Building a Production-Grade Captive Portal with Nodogsplash and Nginx
Tired of expensive Wi-Fi subscriptions? Learn how to use Nodogsplash and Nginx to build a high-performance, self-hosted captive portal on Linux with zero licensing fees.
Posted inNetworking
Configuring GRE and VXLAN Tunnels on Linux: Building Reliable Overlay Networks
Tunnels are the backbone of modern cloud networks. Learn to configure GRE for L3 routing and VXLAN for L2 overlays on Linux with production-ready MTU settings and troubleshooting tips.
Posted inNetworking
Site-to-Site VPN with StrongSwan IPsec IKEv2: A Production-Ready Linux Guide
Build a high-performance Site-to-Site VPN using StrongSwan on Linux. This guide covers IKEv2 configuration with swanctl, firewall tuning, and MSS clamping for maximum stability.
Posted inNetworking
DIY Dynamic DNS with Cloudflare: No More 2 AM Remote Access Failures
Stop getting locked out of your server. Ditch the annoying 'free' DDNS providers and build a professional-grade, automated update script using Cloudflare's API in under 15 minutes.
Posted inNetworking
Boost Linux Network Performance: A Practical Guide to Google BBR
Boost your Linux server's network speed by switching from CUBIC to Google's BBR. This guide shows you how to slash latency and maximize throughput on real-world connections.
Posted inSecurity
Stop DNS Spoofing: A Hands-on Guide to DNSSEC Zone Signing and Validation
DNSSEC adds cryptographic integrity to your domain, stopping attackers from hijacking your traffic. Learn how to sign zones with BIND, manage keys, and build a secure chain of trust.
Posted inNetworking
Build a Global Virtual LAN with ZeroTier: Secure P2P Connectivity Without Public IPs
Tired of fighting with CGNAT and complex VPN setups? This guide shows you how to use ZeroTier to create a secure, peer-to-peer virtual LAN that works anywhere in the world.
Posted inNetworking
Fixing the 2 AM Bandwidth Spike: Practical Traffic Analysis with NetFlow and ntopng
Don't let a 2 AM bandwidth spike crash your cluster. Master NetFlow and ntopng to identify top talkers and detect DDoS attacks using metadata analysis.