>_ DevStack · Infrastructure & Kernel Notes

Linux, Networking & Self-Hosted Systems

Technical notes on low-latency routing, kernel hardening, BBR congestion control, and modern HTTP/3 edge servers.

Networking • 2026

Tuning Linux Kernel UDP Buffers and TCP BBR for High-Throughput Tunnels

Practical sysctl configurations for minimizing packet loss and jitter across distributed mesh networks.

Security • 2026

Zero-Trust SSH Hardening and Automated Firewall Isolation

Replacing legacy port exposure with encrypted mesh interfaces and strict conntrack policies.