// TOPIC CLUSTER TELEMETRY //

#linux

Deep dives into Linux memory management, cgroups v2, io_uring, socket-level routing, and real-time kernel telemetry.

>_ INDEXED TRANSMISSIONS IN #LINUX

9 dispatches

Sep 27, 2026 #linux

Dropping 20M Packets per Second: eBPF XDP Line-Rate DDoS Mitigation in Linux

A battle-tested production guide to filtering volumetric DDoS attacks at 20+ Mpps using eBPF eXpress Data Path (XDP), kernel ring buffers, and hardware NIC offloading.

by Joshua Edward McLaughlin Cox Read →

Sep 27, 2026 #linux

Bypassing the CPU Bottleneck: GPUDirect Storage (GDS) with NVMe-oF in AI Clusters

A deep dive into NVIDIA GPUDirect Storage (GDS) and NVMe over Fabrics: streaming massive multi-terabyte dataset shards directly into GPU HBM without CPU bounce buffers.

by Joshua Edward McLaughlin Cox Read →

Sep 22, 2026 #linux

Bare-Metal Kubernetes Without the Cloud Tax: Talos Linux, Cilium, and Rook-Ceph

A comprehensive production blueprint for running sovereign bare-metal Kubernetes clusters with immutable OS, eBPF BGP routing, and distributed NVMe block storage.

by Joshua Edward McLaughlin Cox Read →

Sep 15, 2026 #linux

The Production bpftrace Playbook: Real-Time Linux Kernel Performance One-Liners

Battle-tested bpftrace recipes and one-liners for diagnosing CPU latency, block I/O bottlenecks, network drops, memory leaks, and process executions in production.

by Joshua Edward McLaughlin Cox Read →

Sep 4, 2026 #linux

The Crucible of Hackers: The History of CTFs, Red vs. Blue Teaming, and Open-Source Lab Frameworks

From DEF CON 4's ethernet cables to modern adversary emulation: the evolution of Capture The Flag, offensive/defensive tradecraft, and the definitive guide to open-source CTF platforms.

by Joshua Edward McLaughlin Cox Read →

Sep 3, 2026 #linux

The Hardened Linux Bastion: Kernel Sysctls, SSH Certificates & AppArmor

A comprehensive, battle-tested operational checklist for hardening production Linux servers against modern automated adversary campaigns.

by Joshua Edward McLaughlin Cox Read →

Sep 1, 2026 #linux

Architecting a Global Overlay Mesh with WireGuard and Anycast BGP

Designing an ultra-low-latency encrypted multi-region mesh network using Bird, WireGuard, and Linux network namespaces.

by Joshua Edward McLaughlin Cox Read →

Aug 20, 2026 #linux

Demystifying eBPF: Tracing Linux Kernel Internals in Real Time

How extended Berkeley Packet Filter (eBPF) transforms observability, security, and networking directly in the Linux kernel without risky kernel modules.

by Joshua Edward McLaughlin Cox Read →

Jun 7, 2026 #linux

Kubash: The Unix-Philosophic Shell Pipeline for Rapid Kubernetes Clusters

Building, provisioning, initializing, and orchestrating production-grade Kubernetes clusters PDQ with Kubash, QEMU/KVM, Packer, and Kubeadm.

by Joshua Edward McLaughlin Cox Read →

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