Search notes:

/etc/ssh/ssh_host-algorithm-_key

In a typical environment, /etc/ssh/ssh_host_<algorithm>_key stores the host's private key for the public-key cryptographic algorithm <algorithm>, for example /etc/ssh/ssh_host_ed25519_key.
The corresponding public key is stored in /etc/ssh/ssh_host_<algorithm>_key.pub

See also

~/.ssh/known_hosts
The HostKey entries in /etc/sshd_config.

Index

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