Centos 7之Firewalld相关命令详细介绍
引言：Centos 7是目前非常流行的Linux发行版本，本文将重点介绍如何来使用firewalld相关命令启动服务以及添加服务或者端口等操作。
1. 查看firewall服务状态
>> systemctl status firewalld
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[root@flybird ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: inactive (dead)
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显示当前的firewall并未启动
2. 启动/关闭firewall
>> systemctl start/stop firewalld
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root@flybird ~]# systemctl start firewalld
[root@flybird ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: active (running) since Fri 2016-12-02 23:17:09 CST; 11s ago
Main PID: 1279 (firewalld)
CGroup: /system.slice/firewalld.service
└─1279 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid
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3. 禁用或者启用firewall
>> systemctl disable/enable firewalld
4. 查看端口是否开放
>>> firewall-cmd –query-port=8020/tcp
5. 新增开发端口
>> firewall-cmd –add-port=5000/tcp –permanent
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[root@flybird ~]# firewall-cmd --query-port=5000/tcp
no
[root@flybird ~]# firewall-cmd --add-port=5000/tcp --permanent
success
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6. 关于服务
>> firewall-cmd –add-service=ftp –permanent
>> firewall-cmd –remove-service=ftp –permanent
7. 查看firewall状态
>> firewall-cmd –status
>> systemctl status firewalld
8. 查看 firewall目前开放的内容
>> firewall-cmd –list-all
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[root@flybird ~]# firewall-cmd --list-all
public (default)
interfaces:
sources:
services: dhcpv6-client http ssh
ports: 443/tcp 80/tcp 3306/tcp 6739/tcp 10051/tcp 10050/tcp
masquerade: no
forward-ports:
icmp-blocks:
rich rules:
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9. 查看开发的端口
>> firewall-cmd –list-port
10. 查看firewall-cmd命令的使用说明
>> firewall-cmd –help
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