Networking Archives - Page 11 of 18

Networking tutorial - IT technology blog

Build Scalable Layer 2 Overlays: EVPN/VXLAN with FRRouting and Open vSwitch on Linux

May 15, 2026

Ditch the limitations of 802.1Q. This guide shows you how to implement a high-performance EVPN/VXLAN overlay on Linux using FRRouting and Open vSwitch for ultimate scalability.

Networking

Advanced Network Diagnostics: Mastering hping3 for Firewall Testing on Linux

May 15, 2026

Ditch the limitations of standard ping. This guide explores hping3 for advanced Linux network diagnostics, showing you how to craft TCP packets and test firewall rules with precision.

Networking

Anycast on Linux: Deploying BGP with FRRouting for Sub-Second Failover

May 14, 2026

Anycast isn't just for CDNs. Learn how to use BGP and FRRouting on Linux to achieve sub-second failover and ultra-low latency for your critical DNS and Web services.

Networking

Stop the ‘Open Port’ Risk: Building 802.1X Wired Security with FreeRADIUS

May 14, 2026

Secure your organization's physical network ports. This guide shows you how to use 802.1X and FreeRADIUS to authenticate devices before granting network access.

Networking

Linux VRF: How to Run Multiple Independent Routing Tables on a Single Server

May 14, 2026

Tired of routing conflicts? Learn how to use Linux VRF to create multiple independent routing tables. This guide covers setup, interface assignment, and running services in isolated network contexts.

Networking

6 Months with Zabbix: A Real-World Guide to Proactive Network Monitoring

May 13, 2026

A production-hardened guide to Zabbix 7.0. From installing on Ubuntu 24.04 to configuring SNMP and stopping alert storms, this is everything I learned in my first 6 months of usage.

Networking

Linux Network Namespaces: How Container Networking Actually Works

May 11, 2026

Learn how Linux Network Namespaces provide the foundation for Docker and Kubernetes networking. This hands-on guide covers building virtual networks, veth pairs, and bridges from scratch.

Networking

Bypass CGNAT: Use Reverse SSH Tunneling to Expose Local Services

May 10, 2026

Tired of CGNAT blocking your home server? Learn how to use a cheap VPS and Reverse SSH Tunneling to bypass ISP restrictions and access your local services from anywhere.

Networking

Bypassing the Bridge: Why We Switched to Macvlan and Ipvlan in Production

May 10, 2026

Is the Docker bridge slowing you down? See how we used Macvlan and Ipvlan to connect containers directly to our physical network, cutting CPU overhead and reducing latency in our VOIP and streaming clusters.

Networking

Kill the ksoftirqd Bottleneck: A Hands-on Guide to NIC Offloading and Interrupt Coalescing

May 10, 2026

Is ksoftirqd pinning your CPU? Learn how to use ethtool to enable TSO, GRO, and interrupt coalescing to eliminate network bottlenecks on high-traffic Linux servers.