遇到的问题:
一、 找不到密钥文件,报 “Could not load host key: /etc/ssh/ssh_host_rsa_key”。
1、执行
sudo ssh-keygen -t rsa -b 2048 -f /etc/ssh/ssh_host_rsa_key
2、修改/etc/ssh/sshd_config, 改为
HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
#HostKey /etc/ssh/ssh_host_ed25519_key
#Privilege Separation is turned on for security
二、netstat 看不到有监听22
直接ssh连子系统的ip 。