CentOS7.*修改ssh端口

在CentOS6.*时代修改ssh端口非常简单，直接修改/etc/ssh/sshd_config文件后重启ssh服务就好了，不过在CentOS7绝大部分还要关闭SElinux或者防火墙放行端口，搜索引擎找到的经常不是很全面，所以自己记录下方便修改的时候参考和复制相关命令，免得每次都去找。文章在HostYun和80VPS两家的KVM主机上测试。

1.修改配置文件添加新的端口

[[email protected] ~]# vi /etc/ssh/sshd_config

找到#Port 22，去掉前面的#并新加一行Port xxxx(xxxx指新的端口)，然后保存退出。

2.防火墙放行端口

[[email protected] ~]# firewall-cmd --zone=public --add-port=2322/tcp --permanent
#2322指新的端口
[[email protected] ~]# firewall-cmd –reload

如果我们的防火墙是关闭状态，这一步可以忽略，不过还是开着吧。

3.关闭SElinux

[[email protected] ~]# vi /etc/selinux/config

这里主要修改SELINUX=enforcing为SELINUX=disabled，完成后保存，重启。

***这一步也可以操作为向SELinux中添加ssh端口而不是直接关闭SELINUX，具体步骤命令如下。

[[email protected] ~]# yum provides semanage
#安装管理工具

[[email protected] ~]#yum -y install policycoreutils-python
#安装依赖包

[[email protected] ~]#semanage port -l | grep ssh
#查询ssh端口

[[email protected] ~]#semanage port -a -t ssh_port_t -p tcp 2322
#向SELinux中添加ssh端口

[[email protected] ~]#systemctl restart sshd.service
#重启sshd服务

标签: centos7修改ssh端口, centos7修改端口, centos修改ssh端口, ssh端口

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