经测试修改
[root@instance-name var]# vi /etc/selinux/config

输入上面的命令打开文件看到以下内容

SELINUX= can take one of these three values:

enforcing - SELinux security policy is enforced.

permissive - SELinux prints warnings instead of enforcing.

disabled - No SELinux policy is loaded.

SELINUX=enforcing

SELINUXTYPE= can take one of these two values:

targeted - Targeted processes are protected,

minimum - Modification of targeted policy. Only selected processes are protected.

mls - Multi Level Security protection.

SELINUXTYPE=targeted

把SELINUX=enforcing 值修改成 SELINUX=disabled 然后保存重启服务器即可