[zh@localhost ~]$service iptable status
[zh@localhost ~]$service iptable status Redirecting to /bin/systemctl status iptable.service iptable.service Loaded: not-found (Reason: No such file or directory) Active: inactive (dead) --表示防火墙已经关闭
[root@localhost ~]#servcie iptables stop --临时关闭防火墙 [root@localhost ~]#chkconfig iptables off --永久关闭防火墙
[root@localhost ~]#firewall-cmd --state not running
[root@localhost ~]#systemctl list-unit-files|grep firewalld.service --防火墙处于关闭状态 firewalld.service disabled
[root@localhost ~]#systemctl status firewalld.service firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled) Active: inactive (dead)
[root@localhost ~]#systemctl stop firewalld.service [root@localhost ~]#systemctl disable firewalld.service
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;echo $? 查看已启动的服务列表:systemctl list-unit-files|grep enabled
firewall-cmd --list-ports
firewall-cmd --zone=public --add-port=80/tcp --permanent
firewall-cmd --reload #重启firewall systemctl stop firewalld.service #停止firewall systemctl disable firewalld.service #禁止firewall开机启动 firewall-cmd --state #查看默认防火墙状态(关闭后显示notrunning,开启后显示running)
/sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT /sbin/iptables -I INPUT -p tcp --dport 22 -j ACCEPT /sbin/iptables -I INPUT -p tcp --dport 8080 -j ACCEPT
/etc/rc.d/init.d/iptables save
/etc/init.d/iptables status
systemctl stop firewalld.service #停止firewall systemctl disable firewalld.service #禁止firewall开机启动
yum -y install iptables-services
vi /etc/sysconfig/iptables
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
systemctl restart iptables.service #重启防火墙使配置生效 systemctl enable iptables.service #设置防火墙开机启动
systemctl start iptables.service #打开防火墙 systemctl stop iptables.service #关闭防火墙
/sbin/iptables -I INPUT -p tcp --dport 80 -j ACCEPT
/etc/rc.d/init.d/iptables save
/etc/init.d/iptables restart
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