查看SELinux状态&关闭SELinux

秒速五厘米 2023-10-17 17:32 64阅读 0赞

#### 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][http_www.linuxidc.com_Linux_2016-11_137723.htm]

来源:http://www.linuxidc.com/Linux/2016-11/137723.htm

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