Tool

SSH known_hosts fix command generator

Paste a “Host key verification failed” or “REMOTE HOST IDENTIFICATION HAS CHANGED” error and get commands that remove only that host’s old entry, after you verify the fingerprint. Handles [host]:port entries too.

Connection refused never reaches host key checking. The read-only order for ssh: connect to host … port 22: Connection refused, whether you are leaving a Mac or logging into one, is ssh: connect to host port 22: Connection refused, from a Mac or into a Mac. The tunnel incident this tool sits next to is in Chinese: 一次ssh排错经历.

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Open-source AI deployment checklist A practical checklist for checking the important things before you deploy. Companion article Read the explanation version before you use the checklist. About the site A quick intro to who writes here and what the site covers. Subscribe for updates Get new resources and follow-ups in your inbox.

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Open-source AI deployment checklist 10 things to confirm before deploying a GitHub project

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corespotlightd high CPU on Mac: read-only diagnosis before you delete anything

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