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cheatsheet-tldr/tldr/ssh-keyscan
2024-03-15 00:13:13 +00:00

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---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# ssh-keyscan
> Get the public SSH keys of remote hosts.
> More information: <https://man.openbsd.org/ssh-keyscan>.
- Retrieve all public SSH keys of a remote host:
`ssh-keyscan {{host}}`
- Retrieve all public SSH keys of a remote host listening on a specific port:
`ssh-keyscan -p {{port}} {{host}}`
- Retrieve certain types of public SSH keys of a remote host:
`ssh-keyscan -t {{rsa,dsa,ecdsa,ed25519}} {{host}}`
- Manually update the SSH known_hosts file with the fingerprint of a given host:
`ssh-keyscan -H {{host}} >> ~/.ssh/known_hosts`