一，启动防火墙:
[root@blog zones]# systemctl status firewalld
○ firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (;;file://blog/usr/lib/systemd/system/firewalld.service/usr/lib/systemd/system/firewalld.service;;; disabled; vendor preset: enabled)
Active: inactive (dead)
Docs: ;;man:firewalld(1)man:firewalld(1);;
[root@blog zones]# systemctl start firewalld
[root@blog zones]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (;;file://blog/usr/lib/systemd/system/firewalld.service/usr/lib/systemd/system/firewalld.service;;; disabled; vendor preset: enabled)
Active: active (running) since Tue 2023-05-09 15:23:15 CST; 3s ago
Docs: ;;man:firewalld(1)man:firewalld(1);;
Main PID: 2580 (firewalld)
Tasks: 2 (limit: 47185)
Memory: 27.9M
CPU: 346ms
CGroup: /system.slice/firewalld.service
└─2580 /usr/bin/python3 -s /usr/sbin/firewalld --nofork --nopid
May 09 15:23:15 iZ2zeai3tu5mxwrtdzrvuzZ systemd[1]: Starting firewalld - dynamic firewall daemon...
May 09 15:23:15 iZ2zeai3tu5mxwrtdzrvuzZ systemd[1]: Started firewalld - dynamic firewall daemon.二，添加端口
说明：可以看到--permanent参数需要--reload后才生效
[root@blog zones]# firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: eth0
sources:
services: cockpit dhcpv6-client ssh
ports:
protocols:
forward: yes
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
[root@blog zones]# firewall-cmd --zone=public --add-port=80/tcp --permanent
success
[root@blog zones]# firewall-cmd --zone=public --add-port=22/tcp --permanent
success
[root@blog zones]# firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: eth0
sources:
services: cockpit dhcpv6-client ssh
ports:
protocols:
forward: yes
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:
[root@blog zones]# firewall-cmd --reload
success
[root@blog zones]# firewall-cmd --list-all
public (active)
target: default
icmp-block-inversion: no
interfaces: eth0
sources:
services: cockpit dhcpv6-client ssh
ports: 80/tcp 22/tcp
protocols:
forward: yes
masquerade: no
forward-ports:
source-ports:
icmp-blocks:
rich rules:说明：刘宏缔的架构森林是一个专注架构的博客，地址：https://www.cnblogs.com/architectforest
对应的源码可以访问这里获取： https://github.com/liuhongdi/
或: https://gitee.com/liuhongdi
说明：作者:刘宏缔 邮箱: 371125307@qq.com
三，查看zone:
[root@blog zones]# firewall-cmd --get-zones
block dmz drop external home internal nm-shared public trusted work
[root@blog zones]#
[root@blog zones]# firewall-cmd --get-active-zones
public
interfaces: eth0四，查看linux的版本:
[root@blog ~]# cat /etc/redhat-release
Rocky Linux release 9.1 (Blue Onyx)