Centos7 开启ssh多端口

1、关闭selinex

1. 临时关闭
   setenforce 0
2. 永久关闭
   vim /etc/selinux/config

2、修改ssh配置文件

vi /etc/ssh/sshd_config

将以下配置注释

#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

增加新的配置

ListenAddress 0.0.0.0:22
ListenAddress 0.0.0.0:2222

3、重启ssh

systemctl restart sshd

4、关闭防火墙

systemctl stop firewalld.service
systemctl disable firewalld.service