pwru — 3 Technical Articles

Nov 17, 2025 · Operations

Mastering pwru: A Step‑by‑Step Guide to eBPF Packet Tracing with Cilium

This article introduces pwru, Cilium's eBPF‑based packet‑tracing tool, explains kernel requirements, shows how to install the pre‑built binary, details command‑line options, and provides practical examples for filtering, output customization, and debugging dropped packets in Linux networking.

CiliumLinux NetworkingeBPF

0 likes · 6 min read

Mastering pwru: A Step‑by‑Step Guide to eBPF Packet Tracing with Cilium

Open Source Linux

Jul 6, 2022 · Operations

Mastering pwru: Install, Use, and Understand Cilium’s eBPF Packet Tracing Tool

pwru, Cilium’s eBPF‑based packet tracing utility, offers fine‑grained network diagnostics; this guide covers kernel requirements, installation steps, command‑line options, real‑world iptables drop detection examples, and an in‑depth look at its eBPF map configuration and perf‑event output mechanism.

CiliumLinux kerneleBPF

0 likes · 9 min read

Mastering pwru: Install, Use, and Understand Cilium’s eBPF Packet Tracing Tool

MaGe Linux Operations

Jun 27, 2022 · Operations

Mastering pwru: Deep Dive into Cilium’s eBPF Packet Tracing Tool

This article introduces pwru, Cilium’s eBPF‑based network packet tracing utility, covering installation prerequisites, command‑line options, real‑world debugging scenarios, and the underlying implementation that leverages kprobes, eBPF maps, and perf events to filter and display packet data.

CiliumLinux kerneleBPF

0 likes · 9 min read

Mastering pwru: Deep Dive into Cilium’s eBPF Packet Tracing Tool