networking Archives

Networking tutorial - IT technology blog

Building a Network Performance Testbed: High-Speed Testing with TRex on Linux

September 1, 2026

Ditch iperf3 for serious network testing. This guide shows you how to build a 10Gbps+ testbed using TRex and DPDK to measure true throughput, latency, and IMIX performance on Linux.

Networking

Setup L2TP/IPsec VPN on Linux: No-App Remote Access for iOS, Android, and Windows

August 27, 2026

Tired of managing VPN apps for non-tech users? Learn how to set up a native L2TP/IPsec VPN on Linux that works out-of-the-box on iOS, Android, and Windows.

Networking

Configuring Wi-Fi 6 (802.11ax) with hostapd on Linux: A Practical Performance Guide

August 26, 2026

A technical guide to configuring 802.11ax on Linux. Learn how to use hostapd to enable OFDMA, BSS Coloring, and TWT for superior wireless efficiency.

Networking

Stop Guessing Why Your Network Is Slow: Real-Time Traffic Analysis with Akvorado and ClickHouse

August 24, 2026

Stop flying blind. Learn how to deploy Akvorado and ClickHouse to collect and visualize NetFlow/sFlow data for real-time traffic analysis and troubleshooting.

Networking

Eliminate Bufferbloat on Linux: A Guide to SQM and CAKE for Low-Latency Networking

August 21, 2026

Bufferbloat can ruin your network experience even on high-speed connections. This guide walks you through configuring SQM with the CAKE algorithm on Linux to keep your latency low and your gaming/VoIP smooth.

Networking

Stopping DHCP Starvation: Hardening Linux Bridges with Snooping and MAC Limits

August 21, 2026

Protect your Linux-based network from DHCP Starvation. Learn to implement DHCP Snooping and MAC limiting on a Linux Bridge using ebtables and iptables.

Networking

Fixing the Single-Core Bottleneck: Scaling Linux Networking with RSS, RPS, and RFS

August 15, 2026

Is CPU0 pinning at 100% while your other cores sit idle? Learn how to use RSS, RPS, and RFS to distribute network interrupts and eliminate packet loss on Linux.

Networking

Traffic Mirroring on Linux with Iptables TEE: High-Performance Monitoring Without the Lag

August 10, 2026

Don't let network monitoring slow down your apps. Learn how to use Iptables TEE to clone traffic for IDS/IPS analysis with minimal latency and high reliability.

Networking

Mastering 464XLAT on Linux: Connecting IPv4-Only Apps to IPv6-Only Networks

August 10, 2026

Don't let legacy IPv4 apps break your IPv6 migration. This guide shows you how to use TAYGA to set up 464XLAT (CLAT) on Linux for seamless cross-protocol connectivity.

Networking

Building a Transparent Proxy on Linux with Redsocks and Iptables

August 1, 2026

Learn how to build a Transparent Proxy on Linux using Redsocks and Iptables. This guide provides a practical solution for routing traffic from non-proxy-aware applications and IoT devices through SOCKS or HTTP proxies.