一、关闭防火墙
1、临时关闭(下次开机启动，自动启动防火墙)[root@localhost ~]# systemctl stop firewalld
2、查看防火墙状态[root@localhost ~]# systemctl status firewalld
3、永久关闭防火墙(开机启动时不在启动)
[root@localhost ~]# systemctl disable firewalld
二、关闭SElinux
1、查看selinux状态[root@localhost ~]# getenforce
Enforcing 表示启动
2、临时关闭[root@localhost ~]# setenforce
usage: setenforce [ Enforcing | Permissive | 1 | 0 ] 1表示启动，0表示关闭
[root@localhost ~]# setenforce 0 临时关闭
[root@localhost ~]# getenforce 查看状态
Permissive 关闭状态
3、永久关闭(修改配置文件，即可永久关闭)[root@localhost ~]# vi /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=enforcing 修改为"SELINUX=disabled"
# SELINUXTYPE= can take one of three values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
1、查看防火墙开启关闭状态
systemctl status firewalld.service查看active显示为关闭状态
2、临时开启防火墙，重启后会恢复默认状态
systemctl start firewalld.service查看active显示为运行状态
3、临时关闭防火墙，重启后会恢复默认状态
systemctl stop firewalld.service查看active显示为关闭状态
4、删除防火墙，重启后依然是关闭状态
systemctl disable firewalld.service 
5、激活防火墙
systemctl enable firewalld.service