Known_hosts on Frank Zhang: Engineering Noteshttps://www.fzhang.dev/en/tags/known_hosts/Recent content in Known_hosts on Frank Zhang: Engineering NotesHugoenThu, 12 Nov 2026 10:30:00 +0800WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED on Mac: check before you delete known_hostshttps://www.fzhang.dev/en/posts/remote-host-identification-changed-mac/Thu, 12 Nov 2026 10:30:00 +0800https://www.fzhang.dev/en/posts/remote-host-identification-changed-mac/The server presented a different host key from the one saved for that host or [host]:port. Name whether the change was expected, compare the SHA256 fingerprint out of band, then remove only that entry.SSH known_hosts fix command generatorhttps://www.fzhang.dev/en/tools/known-hosts-fix/Mon, 01 Jan 0001 00:00:00 +0000https://www.fzhang.dev/en/tools/known-hosts-fix/Parses SSH host key errors in your browser and generates verify, find, remove and reconnect commands.