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查看SELinux状态&关闭SELinux

1. 查看SELinux状态

1.1 getenforce

  • getenforce 命令是单词get(获取)和enforce(执行)连写,可查看selinux状态,与setenforce命令相反。
  • setenforce 命令则是单词set(设置)和enforce(执行)连写,用于设置selinux防火墙状态,如: setenforce 0用于关闭selinux防火墙,但重启后失效

    [root@localhost ~]# getenforce
    Enforcing

1.2 /usr/sbin/sestatus

Current mode表示当前selinux防火墙的安全策略

[root@localhost ~]# /usr/sbin/sestatus
SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   enforcing
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Max kernel policy version:      28

SELinux status:selinux防火墙的状态,enabled表示启用selinux防火墙
Current mode: selinux防火墙当前的安全策略,enforcing 表示强

2. 关闭SELinux

2.1 临时关闭

setenforce 0 :用于关闭selinux防火墙,但重启后失效。

[root@localhost ~]# setenforce 0
[root@localhost ~]# /usr/sbin/sestatus
SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   permissive
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Max kernel policy version:      28

2.1 永久关闭

修改selinux的配置文件,重启后生效。

打开 selinux 配置文件

[root@localhost ~]# vim /etc/selinux/config

修改 selinux 配置文件

将SELINUX=enforcing改为SELINUX=disabled,保存后退出

# 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
# 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

此时获取当前selinux防火墙的安全策略仍为Enforcing,配置文件并未生效。

[root@localhost ~]# getenforce
Enforcing

重启

[root@localhost ~]# reboot

验证

[root@localhost ~]# /usr/sbin/sestatus
SELinux status:                 disabled

[root@localhost ~]# getenforce
Disabled

本文永久更新链接地址:http://www.linuxidc.com/Linux/2016-11/137723.htm

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