ssh-keygen

When i used systemctl status sshd, i saw:

Aug 11 03:41:35 NekoPara01 sshd[1045]: error: Could not load host key: /etc/ssh/ssh_host_ecdsa_key
Aug 11 03:41:35 NekoPara01 sshd[1045]: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key

Use sudo ssh-keygen -A to generate all missing host keys.