How the OpenSSH SFTP client keeps requests in flight, ramps its window from one to sixty-four, negotiates buffer sizes with the server and backs scp.
2026, Aug 27 — 13 minute read
How ControlMaster works in OpenSSH, the mux protocol spoken over the ControlPath socket, and the difference between passenger mode and proxy mode.
2026, Aug 27 — 13 minute read
How channels.c implements port forwarding, X11, SOCKS proxying, agent access and tunnels as one abstraction, with per-channel windows and half-close.
2026, Aug 27 — 12 minute read
How an OpenSSH certificate is validated, why unknown critical options are fatal while unknown extensions are ignored, and how KRL revocation lists compress.
2026, Aug 27 — 13 minute read
Fluid's liquidity layer runs on Solana as Jupiter Lend. A read of its Anchor programs, from balance-delta deposits and tick PDAs to introspected flash loans.
2026, Aug 26 — 27 minute read
How CIP-113 puts issuer-enforced transfer rules on Cardano native assets with no hard fork. Shared custody address, sorted-list registry, seizure scope.
2026, Aug 26 — 34 minute read
How the Quantus qp-rusty-crystals crate implements FIPS 204 ML-DSA in no_std Rust, from const-generic parameter sets to streaming matrix expansion.
2026, Aug 25 — 34 minute read
