Stories, tutorials, and deep dives spanning across diverse worlds.
Comprehensive guide covering eBPF & XDP at Scale: 10 Million Packets/Sec DDoS Mitigation & Driver-Level Filtering with production-grade architecture and code examples.
Comprehensive guide covering Linux cgroups v2 in Kubernetes: PSI Pressure Stall Information, Memory Throttling & OOM Shields with production-grade architecture and code examples.
Comprehensive guide covering NVMe-over-TCP in Production: Linux Kernel Architecture, SPDK & High-IOPS Kubernetes Storage with production-grade architecture and code examples.
Comprehensive guide covering High-Throughput Linux I/O in Rust: io_uring, Tokio & Zero-Copy Networking with production-grade architecture and code examples.
Comprehensive guide covering WireGuard Site-to-Site Kernel Mesh: High-Throughput Crypto Routing & MTU Optimization with production-grade architecture and code examples.
Implement low-overhead Linux kernel observability using eBPF. Profile system call latency, track memory allocations, and monitor network sockets without sidecars.
Production Ubuntu server hardening guide: SSH key enforcement, UFW firewalls, Fail2ban intrusion prevention, unattended upgrades, and auditd logging.
I spent months testing VPNs and proxies on Linux, finding IPv6 leaks in my own setup, breaking my browser fingerprint with too many extensions, and learning what actually works for privacy. Here's what I wish someone told me from the start.
After a kernel update, my Ubuntu desktop took 2–3 minutes to appear after login. The culprit was a DRM modeset ownership fight between nvidia-drm and Xorg. Here's how I fixed it in 10 seconds.
Spent three days chasing a two-minute login freeze on Ubuntu. Turns out it wasn't one bug - it was three separate issues stacking up: NetworkManager waiting for network, gnome-keyring starting twice, and snapd adding two minutes for 18 snaps. Here's the full debugging trail.
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