启动sshd过程中，如果出现如下问题：
[root@debian ~]# /usr/sbin/sshd Could not load host key: /etc/ssh/ssh_host_rsa_key Could not load host key: /etc/ssh/ssh_host_ecdsa_key Could not load host key: /etc/ssh/ssh_host_ed25519_key
解决方案为运行：
ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key
文章作者：沃航科技
