ssh 启动时无法生成主机密钥
解决方法手动创建
ssh-keygen -q -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key -N '' ssh-keygen -q -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N '' ssh-keygen -t dsa -f /etc/ssh/ssh_host_ed25519_key -N ''

ssh 启动时无法生成主机密钥
解决方法手动创建
ssh-keygen -q -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key -N '' ssh-keygen -q -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -N '' ssh-keygen -t dsa -f /etc/ssh/ssh_host_ed25519_key -N ''