CentOS7使用firewalld和selinux

一键关闭SELinux和firewalld

 1 #!/bin/bash
 2 #
 3 
 4 echo "此段代码是判断和永久关闭SELinux"
 5 sleep 2
 6 
 7 sefile=/etc/selinux/config
 8 
 9 if [ "`getenforce`" == "Enforcing" ]; then
10   echo "selinux is starting,the scripts will set up"
11   setenforce 0
12 else
13   if [ "`getenforce`" == "Permissive" ]; then
14     echo "selinux was down"
15   fi  
16 fi
17 
18 if [ `grep 'SELINUX=enforcing' $sefile | wc -l` -eq 1 ]; then
19   echo "selinux is start up with system boot,the scripts will set up."
20   sed -i 's/SELINUX=enforcing/SELINUX=disabled/' $sefile
21 else
22   if [ `grep 'SELINUX=disabled' $sefile | wc -l` -eq 1 ]; then
23     echo "selinux will not start up with your system boot."
24   fi  
25 fi
26 
27 sleep 2
28 echo
29 echo "此段代码是判断和永久关闭firewalld"
30 sleep 2
31 
32 systemctl status firewalld &>/tmp/1.txt
33 fifile=/tmp/1.txt
34 
35 if [ `head -n 3 $fifile | grep 'running' | wc -l` -eq 1 ]; then
36   echo "firewalld is running,the script will set up."
37   systemctl stop firewalld
38   systemctl disable firewalld &>/dev/null
39 else
40   echo "firewalld is stopped"
41 fi
一键关闭SELinux和firewalld
1、firewalld的基本使用
启动: systemctl start firewalld
关闭: systemctl stop firewalld
查看状态: systemctl status firewalld 
开机禁用  : systemctl disable firewalld
开机启用  : systemctl enable firewalld
 

2.systemctl是CentOS7的服务管理工具中主要的工具,它融合之前service和chkconfig的功能于一体。

启动一个服务:systemctl start firewalld.service
关闭一个服务:systemctl stop firewalld.service
重启一个服务:systemctl restart firewalld.service
显示一个服务的状态:systemctl status firewalld.service
在开机时启用一个服务:systemctl enable firewalld.service
在开机时禁用一个服务:systemctl disable firewalld.service
查看服务是否开机启动:systemctl is-enabled firewalld.service
查看已启动的服务列表:systemctl list-unit-files|grep enabled
查看启动失败的服务列表:systemctl --failed


3.配置firewalld-cmd

查看版本: firewall-cmd --version
查看帮助: firewall-cmd --help
显示状态: firewall-cmd --state
查看所有打开的端口: firewall-cmd --zone=public --list-ports
更新防火墙规则: firewall-cmd --reload
查看区域信息: firewall-cmd --get-active-zones
查看指定接口所属区域: firewall-cmd --get-zone-of-interface=eth0
拒绝所有包:firewall-cmd --panic-on
取消拒绝状态: firewall-cmd --panic-off
查看是否拒绝: firewall-cmd --query-panic


那怎么开启一个端口呢?


添加
firewall-cmd --zone=public --add-port=80/tcp --permanent (--permanent永久生效,没有此参数重启后失效)


重新载入
firewall-cmd --reload


查看
firewall-cmd --zone= public --query-port=80/tcp


删除
firewall-cmd --zone= public --remove-port=80/tcp --permanent

 
原文地址:https://www.cnblogs.com/hanshanxiaoheshang/p/9431034.html