配置ssh登录docker-centos

安装 openssh-server

$ yum install openssh-server openssh-clients
$ whereis sshd  # /usr/sbin/sshd

$ ssh-keygen -f /etc/ssh/ssh_host_rsa_key
$ ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key
############
# 缺少什么 key 就生成什么 key
$ ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key
$ ssh-keygen -t ed25519 -f /etc/ssh/ssh_host_ed25519_key