ssh daemon

PKI

generate

ssh-keygen -t ed25519

list

ls -l ~/.ssh/
total 40
-rw-------. 1 clinux clinux   508 Dec 13 14:21 authorized_keys      # list of authorized public keys
-rw-r--r--. 1 clinux clinux    49 May 16 13:58 config               # configuration (ex ssh jump)
-rw-------. 1 clinux clinux   411 Oct 20  2023 id_ed25519           # Keep this private 
-rw-r--r--. 1 clinux clinux   101 Oct 20  2023 id_ed25519.pub       # used to authenticate