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月光中的污点 | CentOS 7 防火墙相关命令
source link: https://www.extlight.com/2020/12/18/CentOS-7-%E9%98%B2%E7%81%AB%E5%A2%99%E7%9B%B8%E5%85%B3%E5%91%BD%E4%BB%A4/
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systemctl start firewalld.service
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systemctl stop firewalld.service
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systemctl restart firewalld.service
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systemctl status firewalld.service
或
firewall-cmd --state
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# 例如：开放 80 端口
firewall-cmd --zone=public --add-port=80/tcp --permanent
开放端口需重启防火墙
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firewall-cmd --reload
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# 例如：关闭 80 端口
firewall-cmd --zone=public --remove-port=80/tcp --permanent
查看开放的端口
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firewall-cmd --zone=public --list-ports
查看监听的端口
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netstat -lnpt
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