#networking

Notes from Linux operations, infrastructure, and software projects.

4 articles found · Reset filter

// 01.11.2026 // Architecture

Subnetting Without the Binary Circus: How Prefixes and Network Boundaries Actually Work

Why hand-drawn binary tables are useless in daily ops: How the Linux kernel actually cuts network boundaries, why IPv4 enforces rigid powers of two, and how nibble boundaries make IPv6 painless.

#Networking #Subnetting #IPv4

~ 7 MIN Read article →

// 31.10.2026 // Architecture

940 Mbps in the Speedtest, 85 Million Dead Packets in the Cable: How a Network Decays Unnoticed

When construction crews dig through the soil and the ISP stone-walls: How TR-064 telemetry exposes real line health and forces regulatory action via the Federal Network Agency.

#DOCSIS #Broadband #Networking

~ 9 MIN Read article →

// 09.04.2026 // Linux

Little Snitch on Linux: Network Control via eBPF

The most well-known macOS network monitor has arrived on Linux. Instead of kernel hacks, Little Snitch uses eBPF for granular app-level control. A look at the technology.

#eBPF #Linux #Little Snitch

~ 3 MIN Read article →

// 15.08.2025 // Architecture

Magenta Audacity: When Door-to-Door Fiber Sales Turn Aggressive

Fiber to the home is essential infrastructure — aggressive door-to-door sales tactics are not. Why fabricated network shutdowns and pressure tactics harm broadband expansion more than they help.

#Fiber #FTTH #Telekom

~ 4 MIN Read article →