Fail2Ban reads logs and rewrites the firewall as root. Its jail architecture, the tag-escaping pipeline, and why a filter regex is a security boundary.
2026, Sep 03 — 29 minute read
How Hyperliquid runs a native order book and an EVM under one HyperBFT consensus, and how its margining, oracles, liquidations and HIP standards work.
2026, Sep 02 — 37 minute read
How HyperCore matches orders inside consensus state, why cancels beat aggressive orders in a block, and how that compares with a CEX engine, dYdX v4 and GMX.
2026, Sep 02 — 25 minute read
Hyperliquid's oracle is a stake-weighted median of validator medians, published every three seconds. Which price drives funding, margin and liquidation.
2026, Sep 02 — 24 minute read
HIP-1 tokens, HIP-2 Hyperliquidity, HIP-3 builder-deployed perps and HIP-4 outcome markets, with the stakes, auctions and slashing rules that gate each one.
2026, Sep 02 — 31 minute read
Merkle Patricia Forestry stores a branch's 16 children as a small Merkle tree, so a Cardano proof carries 4 hashes per level instead of 15.
2026, Aug 28 — 25 minute read
How sshsig signs arbitrary files with an SSH key, why the namespace field prevents cross-protocol replay, and how allowed_signers controls verification.
2026, Aug 27 — 12 minute read
