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Ops Community
Ops Community
Sep 10, 2025 · Operations

Master Linux Network Routing & Forwarding: From Theory to Real-World Practice

This comprehensive guide walks you through Linux routing fundamentals, static and dynamic route configuration, policy routing, IP forwarding, NAT, troubleshooting, performance tuning, security hardening, and container networking, equipping operations engineers with the skills to design, optimize, and secure complex network infrastructures.

IP forwardingLinuxNAT
0 likes · 23 min read
Master Linux Network Routing & Forwarding: From Theory to Real-World Practice
Liangxu Linux
Liangxu Linux
Sep 1, 2024 · Operations

How to Add Custom Policy Routing for Multiple NICs on Linux

This guide explains how to configure additional routing rules for a second network interface on Linux by creating a new policy routing table, adding specific routes and rules with iproute2 commands, and verifying that traffic uses the intended NIC.

LinuxNetwork ConfigurationPolicy Routing
0 likes · 7 min read
How to Add Custom Policy Routing for Multiple NICs on Linux
MaGe Linux Operations
MaGe Linux Operations
Jul 29, 2024 · Operations

How to Add Custom Routing Rules for Multiple NICs on Linux

This guide explains how to configure additional routing tables and policy‑based routes on a Linux server with two network interfaces, covering IP address inspection, routing table edits, ip rule commands, and persistence across reboots.

LinuxNetwork ConfigurationPolicy Routing
0 likes · 9 min read
How to Add Custom Routing Rules for Multiple NICs on Linux
ITPUB
ITPUB
Oct 11, 2016 · Operations

How to Set Up Dual‑ISP Policy Routing on Linux and FreeBSD with Nginx

This guide explains why policy routing is essential for servers with two ISP lines, and provides step‑by‑step commands for configuring persistent policy routes on CentOS 6.5 and FreeBSD 10.3, including iproute2 tables, pf rules, and Nginx listen directives with setfib.

FreeBSDNetworkingPolicy Routing
0 likes · 12 min read
How to Set Up Dual‑ISP Policy Routing on Linux and FreeBSD with Nginx