1.關閉SELinux功能

第一種修改配置檔案，永久生效：
[[email protected]_0_7_centos ~]# cat /etc/selinux/config 

# This file controls the state of SELinux on the system.
# 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=disabled
# SELINUXTYPE= can take one of three two values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected. 
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted


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[email protected]_0_7_centos ~]# 
第二種臨時關閉，setenforce 0相當於disabled,1 相當於enforcing。
[[email protected]_0_7_centos ~]# setenforce 0
[[email protected]_0_7_centos ~]# getenforce 
Disabled

2.關閉防火墻 for CentOS 7

檢視防火墻狀態，關閉，開啟
[[email protected]_0_7_centos ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: inactive (dead)
     Docs: man:firewalld(1)
[
 
[email protected]_0_7_centos ~]# systemctl stop firewalld
[[email protected]_0_7_centos ~]# systemctl start firewalld
[[email protected]_0_7_centos ~]#