Networking Archives - Page 2 of 18

Networking tutorial - IT technology blog

Self-Hosting Headscale: Build a Private WireGuard Mesh VPN for Tailscale Clients

October 11, 2026

Learn how to self-host Headscale as an open-source Tailscale control server. This practical guide covers Docker deployment, Nginx reverse proxy configuration, node enrollment, and production best practices for running a secure, private WireGuard mesh VPN.

Networking

Self-Hosting a STUN/TURN Server with coturn on Linux: Solving NAT Traversal for WebRTC and VoIP

October 11, 2026

Deploy and harden a dedicated coturn STUN/TURN relay on Linux. Learn how to configure dynamic HMAC auth tokens, open firewall ranges, and verify WebRTC relay candidates with Trickle ICE.

Networking

How to Install and Configure MikroTik CHR on Proxmox VE for Your Network Lab

October 11, 2026

Build a robust virtual routing layer inside Proxmox VE using MikroTik Cloud Hosted Router (CHR). This hands-on guide details how to import the RAW disk image via CLI, structure isolated lab bridges, and configure baseline NAT routing.

Networking

Self-Host a ZeroTier Network Controller with ZTNET on Linux: Build a Private P2P SD-WAN

October 10, 2026

Learn how to self-host a private ZeroTier network controller on Linux using ZTNET and Docker. Build an unlimited, self-managed peer-to-peer SD-WAN overlay network across your multi-cloud and edge infrastructure.

Networking

Deploying DoH and DoT with CoreDNS on Linux: Secure Internal DNS Queries Against Eavesdropping

October 9, 2026

Secure your internal Linux network against snooping and spoofing. Learn how to deploy CoreDNS with DoH and DoT, enforce systemd capabilities, and configure upstream encryption.

Networking

Deploying NetBox as a Single Source of Truth: Centralized DCIM, IPAM, and Network Automation

October 7, 2026

Deploy NetBox as your authoritative network Single Source of Truth (SSoT). Master DCIM and IPAM data modeling, render switch configs with Python, and feed dynamic inventory directly into Ansible.

Networking

Configure Avahi Daemon as an mDNS Reflector on Linux: Cross-VLAN Discovery for AirPlay, Chromecast, and Printers

October 6, 2026

Learn how to configure Avahi Daemon as an mDNS reflector on Linux to enable cross-VLAN discovery for AirPlay, Chromecast, and printers. Troubleshoot multicast boundaries, firewall rules, and unicast stream routing.

Networking

Configuring GRE over IPsec on Linux for Secure OSPF Dynamic Routing

October 4, 2026

Pure IPsec tunnels drop the multicast packets that dynamic routing protocols like OSPF require. This operational guide shows you how to wrap GRE in IPsec transport mode on Linux, securing branch-to-branch links while maintaining dynamic route adjacencies.

Networking

Deploying Layer 7 Real-Time Network Traffic Analysis with ntopng and DPI on Linux

October 4, 2026

Deploy ntopng and nDPI on Linux for real-time Layer 7 network visibility. This guide covers architecture design, Redis backend setup, promiscuous interface tuning, and practical troubleshooting workflows.

Networking

High Availability Virtual IP with Keepalived and VRRP on Linux: A 6-Month Production Review

October 3, 2026

A single gateway crash can bring down an entire stack. Here is a 6-month production review of implementing High Availability Virtual IP using Keepalived and VRRP on Linux, featuring real metrics, configurations, and post-mortem lessons.