Jerry Labs notes https://edge.jerrylabs.dev/ 2026-07-30T00:00:00Z Jerry One Port Number, Two Owners: TCP and UDP Are Separatehttps://edge.jerrylabs.dev/network-notes.html2026-07-30T00:00:00ZA complete port map names the transport, address family, bind address, and process. A Local SSH Tunnel Is a New Socket, Not a Public Porthttps://edge.jerrylabs.dev/ssh-local-forwarding.html2026-07-30T00:00:00ZReach a loopback-only service and verify the policy with a fresh connection. BBR vs Cubic: Test the Socket You Actually Care Abouthttps://edge.jerrylabs.dev/bbr-vs-cubic.html2026-07-30T00:00:00ZProve the active TCP controller and compare full distributions instead of one peak. Copying a Live SQLite File Is Not a Backuphttps://edge.jerrylabs.dev/sqlite-online-backups.html2026-07-30T00:00:00ZCreate and verify a consistent online SQLite snapshot. TLS Renewal Hooks Without Surprise Restartshttps://edge.jerrylabs.dev/tls-renewal-hooks.html2026-07-30T00:00:00ZValidate, reload narrowly, and compare the certificate served at the public endpoint.