CentOS 7.5 关闭SELINUX跟FIREWALL防火墙

逃离我推掉我的手 2024-04-17 14:16 182阅读 0赞

CentOS 7.5关闭FireWall 和SELinux图文详解

  1. 环境

CentOS 7.5

  1. 关闭FireWall和SELinux

2.1 FireWall

使用systemctl status firewalld查看防火墙的状态,如下(默认开启)

[linuxidc@localhost ~]$ systemctl status firewalld

// 防火墙状态
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: active (running) since 二 2018-11-13 14:40:53 CST; 11min ago
Docs: man:firewalld(1)
Main PID: 821 (firewalld)
Tasks: 2
CGroup: /system.slice/firewalld.service
└─821 /usr/bin/Python -Es /usr/sbin/firewalld —nofork —nopid

11月 13 14:40:51 localhost.localdomain systemd[1]: Starting firewalld - dyna…
11月 13 14:40:53 localhost.localdomain systemd[1]: Started firewalld - dynam…
Hint: Some lines were ellipsized, use -l to show in full.

CentOS 7.5关闭FireWall 和SELinux图文详解

如果你需要使用FireWall服务(正式环境下),则需要修改它的配置,因为在默认情况下,它会拦截大多数服务请求。具体可以参考配置firewalld服务的基本操作和设置。

如果由于某些原因(比如本文只是需要Linux服务器来搭建某些服务,不想控制防火墙只开放某些端口)等而不需要FireWall服务,则可以像下面那样停止并禁用它。

// 关闭服务
[linuxidc@localhost ~]$ systemctl stop firewalld

// 关闭开机自动开启FireWall服务
[linuxidc@localhost ~]$ systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.Fedoraproject.FirewallD1.service.

2.2 关闭SELinux

可以用getenforce 查看SELinux的状态,如下(默认开启)

[linuxidc@localhost ~]$ getenforce

//开启状态
Enforcing

CentOS 7.5关闭FireWall 和SELinux图文详解

同上,如果你想使用SELinux也可以。但是本人不想那么麻烦,所以把SELinux也关闭了。

[linuxidc@localhost ~]$ sudo nano /etc/selinux/config

CentOS 7.5关闭FireWall 和SELinux图文详解

# 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.

// 这里改变为disabled
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

CentOS 7.5关闭FireWall 和SELinux图文详解

// 重启使配置生效
[linuxidc@localhost ~]# reboot

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