Tag: #vpn
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 4 posts
ping works but only large requests hang — dissecting MTU, MSS and the PMTUD blackhole
When small requests go through fine but only large responses stall halfway, it is almost always a path MTU problem. TCP advertises MSS based on the interface MTU, and when a narrower segment sits somewhere along the path
2026-07-26 · 14 min read #network#mtu#tcp#vpn#kubernetesVPN & Mesh Networking 2026 Deep Dive — Tailscale, WireGuard, Twingate, ZeroTier, NetBird, Nebula, Mullvad, Headscale, Pangolin
In 2026, VPN and mesh networking split into two branches. One is WireGuard-based mesh overlays (Tailscale, Headscale, NetBird, Innernet). The other is the SASE/ZTNA commercial stack (Twingate, Cloudflare Zero Trust, Zsca
2026-05-16 · 28 min read #vpn#mesh-networking#tailscale#wireguard#twingateOverlay VPN & Mesh Networking 2026 — Tailscale / Headscale / ZeroTier / Nebula / WireGuard / NetBird Deep-Dive Comparison
In 2026 the overlay VPN market has settled into "the world where Tailscale is the de-facto standard, plus self-hosted, enterprise, and DIY camps around it." WireGuard became the universal foundation, Tailscale defined th
2026-05-16 · 28 min read #vpn#overlay-network#mesh#tailscale#headscaleIPsec Mastery — From VPN Tunnel Internals to Deployment
IPsec core protocols (AH, ESP, IKE), Tunnel Mode vs Transport Mode, SA/SPI concepts, and the Phase 1/Phase 2 negotiation process. We dissect the entire journey of a packet being encrypted and delivered, with diagrams and
2026-03-02 · 7 min read #architecture#ipsec#vpn#network-security#encryption