Reproducer and mitigation for OpenWrt 24.10.0 flow offload + PBR + NAT wrong-MAC bug (netns lab, diagnostics, firewall4 guard).

A utility for mapping NICs on XCP-ng systems by interface, MAC, PCI address, and device description — ideal for passthrough, labeling, and homelab hardware organization.

Comprehensive guide for tuning Linux network stack buffers (socket, TCP, qdisc, NIC rings) on RHEL/OEL 8. Includes detailed documentation, RTT-based buffer calculations, tuning profiles for low-latency and high-throughput scenarios, and production-ready shell scripts for validation and monitoring.

Realtek RTL8852CE rtw89 Linux WiFi lag, 1000ms ping spikes, and audio stutter fix

Linux system administration involves managing and maintaining Linux-based systems, including installing, configuring, securing, and troubleshooting various components. Given your strong background in IT, DevOps, and Linux, you might already be familiar with many aspects of system administration.

A tool isolates network traffic to only the current terminal shell and its children by dropping everything else with nftables and cgroup v2

Script to help manage MikroTik's

Wrapper for network security & routing utilities

This set of demos and lab goes along with the coursera course: Network Principles in Practice: Linux. You are welcome to run this code and I try to make it as self explanatory as possible, but some of the explanation will be in the videos for the course.

Five battle-tested WireGuard configs for running one Linux box as a multi-tenant hub serving unrelated peers - with the iptables, routing and hardening rules each scenario actually needs.

containerlab spaces in multi-connected PC

A containerized 5G Core and RAN simulation using Open5GS, UERANSIM, and Linux Network Namespaces.

Shell scripts to demonstrate my understanding of the Linux command line as part of my journey to become a software engineer.

Enterprise Linux Administration Operations Lab for RHEL 9.6 featuring hands-on labs, troubleshooting scenarios, monitoring workflows, Bash automation scripts, networking diagnostics, storage management, security hardening, recovery procedures, and real-world enterprise operations projects.

🚀 The Ultimate Gost v3 Manager | Adaptive Cyberpunk UI, Dual-Stack IPv6, Load Balancer & Secure Tunnels (WSS/gRPC/QUIC).

This repo contains code and resources for analyzing network traffic captured with Wireshark on a Linux os.

A collection of Linux `tc` related scripts to achieve various things

A utility for mapping NICs on XCP-ng systems by interface, MAC, PCI address, and device description — ideal for passthrough, labeling, and homelab hardware organization.

🙃 This is a fork of the original oh-my-zsh repo. This adds zsh CLI completion support for the Linux nl80211-based 'iw' utility.

🛠 Reproduce and fix OpenWrt 24.10.0 flow offload bug causing NAT policy routing to misroute traffic to wrong LAN MAC addresses.