[root@app-test zones]# more public.xml
PublicFor use in public areas. You do not trust the other computers on networks to not harm your computer. Only selected incoming connections are accepted.
如果–zone=dmz 这样设置的话,会在dmz.xml文件中新增一条。
修改配置文件的方式添加端口
PublicFor use in public areas. 放通指定ip,指定端口、协议
放通任意ip访问服务器的9527端口
service firewalld restart 重启
service firewalld start 开启
service firewalld stop 关闭
查看firewall服务状态
systemctl status firewall
查看firewall的状态
firewall-cmd --state
查看防火墙规则
firewall-cmd --list-all
[root@app-test firewalld]# firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: enp8s0
sources:
services: ssh dhcpv6-client
ports: 8082/tcp 8080/tcp 8081/tcp
protocols:
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
CentOS切换为iptables防火墙
切换到iptables首先应该关掉默认的firewalld,然后安装iptables服务。
关闭firewall
service firewalld stop
systemctl disable firewalld.service #禁止firewall开机启动
安装iptables防火墙
yum install -y iptables-services #安装
编辑iptables防火墙配置
vi /etc/sysconfig/iptables #编辑防火墙配置文件
下边是一个完整的配置文件:
Firewall configuration written by system-config-firewall
Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
:wq #保存退出
service iptables start #开启
systemctl enable iptables.service #设置防火墙开机启动
使用命令开启INPUT服务端口
iptables -I INPUT -p tcp --dport 8011 -j ACCEPT #开启8011端口
/etc/rc.d/init.d/iptables save #保存配置
/etc/rc.d/init.d/iptables restart #重启服务
/etc/init.d/iptables status #查看端口是否已经开放