Linux 防火墙和SELinux的开启和关闭

防火墙(firewalld)

  • 临时关闭防火墙
    systemctl stop firewalld
  • 永久防火墙开机自关闭
    systemctl disable firewalld
  • 临时打开防火墙
    systemctl start firewalld
  • 防火墙开机启动
    systemctl enable firewalld
  • 查看防火墙状态
    systemctl status firewalld
[root@localhost ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: ena  bled)
   Active: active (running) since Sat 2017-04-08 10:36:57 CST; 31s ago
 Main PID: 2856 (firewalld)
   CGroup: /system.slice/firewalld.service
           └─2856 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

Apr 08 10:36:56 localhost.localdomain systemd[1]: Starting firewalld - dynamic firewal....
Apr 08 10:36:57 localhost.localdomain systemd[1]: Started firewalld - dynamic firewall....
Hint: Some lines were ellipsized, use -l to show in full.
[root@localhost ~]#
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SELinux

  • 临时关闭SELinux
    setenforce 0
  • 临时打开SELinux
    setenforce 1
  • 查看SELinux状态
    getenforce
  • 开机关闭SELinux
    编辑/etc/selinux/config文件,如下图,将SELINUX的值设置为disabled。下次开机SELinux就不会启动了。
    这里写图片描述

注意,此时也不能通过setenforce 1命令临时打开。

[root@localhost ~]# setenforce 1
setenforce: SELinux is disabled
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需要修改配置文件,然后重启linux后,才可以再打开SELinux

posted on 2018-08-31 11:13  caigan  阅读(44439)  评论(0编辑  收藏  举报