// TOPIC CLUSTER TELEMETRY //

#security

Offensive red-team post-mortems, Linux server hardening checklists, Atomic Red Team emulation, and telemetry detection.

>_ INDEXED TRANSMISSIONS IN #SECURITY

8 dispatches

Sep 27, 2026 #security

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 26, 2026 #security

Announcing Silent Mode Control: Granular Telecom Call Screening & Silent Schedules for Android

Introducing Silent Mode Control (SMC)—a privacy-first Android application hooking into the native Telecom framework to deliver granular ringer, vibration, and mute schedules per contact with 100% on-device processing.

by Joshua Edward McLaughlin Cox Read →

Sep 22, 2026 #security

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 8, 2026 #security

Tonight in Austin: 'The Crucible of Hackers' 3D Presentation & Cyber Alliance Meetup at ACC Rio Grande

Join the Austin Cyber Alliance tonight, Sep 8, 2026 (6:00-8:00 PM CDT) at Austin Community College Rio Grande Campus for an interactive 3D technical briefing on the history of CTF wargames, followed by intel on the upcoming Fall 2026 CTF.

by Joshua Edward McLaughlin Cox & Tekromancy Collective Read →

Sep 4, 2026 #security

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 #security

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 #security

NastyMap: High-Performance Network Topology, GeoIP Threat Mapping & Scan Diffing for Nmap

Visualizing Nmap XML scans into interactive force-directed topologies, GeoIP ballistic threat maps, and automated security diffs with Tekromancy's NastyMap.

by Joshua Edward McLaughlin Cox Read →

Aug 24, 2026 #security

Hardening Kubernetes with Cilium: eBPF-Powered Zero Trust & mTLS

Replacing legacy kube-proxy with Cilium eBPF for wire-speed packet filtering, Layer 7 network policies, and transparent mutual TLS.

by Joshua Edward McLaughlin Cox Read →

← View All Dispatches & Field Notes