一、列出解决过程中所有报错信息

• ssh connection refused port 22
• Stopped OpenBSD Secure Shell server. Failed to start OpenBSD Secure Shell server.
• OpenSSL version mismatch. Built against 1010104f, you have 101000cf
•  Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
• This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
• Missing privilege separation directory: /run/sshd
   

二、ssh连接拒绝的原因

由于CM3升级了openssl，导致ssh服务启动出错，SSH  connection refused。所有ssh连接都拒绝。查看sshd服务运行状态，提示Failed to start OpenBSD Secure Shell server。查看sshd 报错原因为：OpenSSL version mismatch. Built against 1010104f, you have 101000cf。因此，主要是openssl版本过低的问题，通过升级即可解决。

三、解决过程

1、定位问题

service sshd restart
systemctl status ssh.service

sshd -T

 

 2、更新系统和源

apt-get update
apt update

 3、重新安装openssl ssh

apt-get remove openssl
apt-get remove ssh
apt-get install openssl
apt-get install ssh

 

 

4、查看sshd 错误

sshd -T

新建一个目录即可：

mkdir /run/sshd

5、重启sshd服务即可登录ssh

service sshd restart