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
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