/usr/sbin/sshd -D 启动报SSL key错误解决

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Unable to load host key: /etc/ssh/ssh_host_rsa_key
Unable to load host key: /etc/ssh/ssh_host_ecdsa_key
Unable to load host key: /etc/ssh/ssh_host_ed25519_key
sshd: no hostkeys available -- exiting.

解决办法1 ssh-keygen -t dsa -f /etc/ssh/ssh_host_ed25519_key ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key ssh-keygen -t ecdsa -b 256 -f /etc/ssh/ssh_host_ecdsa_key

解决办法2 ssh-keygen -t ras -b 2048 -f /etc/ssh/ssh_root_rsa_key ssh-keygen -t ecdsa -b 256 -f /etc/ssh/ssh_host_ecdsa_key ssh-keygen -t ed25519 -b 256 -f /etc/ssh/ssh_host_ed25519_key