CentOS7 Firewall防火牆常用命令

2021-08-15 18:04:11 字數 2206 閱讀 3839

開啟防火牆

systemctl start firewalld.service
關閉防火牆
systemctl stop firewalld.service
檢視防火牆狀態
systemctl status firewalld.service
開啟開機啟動防火牆
systemctl enable firewalld.service
關閉開機啟動防火牆
systemctl disable firewalld.service
開啟某個埠（80）
firewall-cmd


--zone=


public


--add-port


=80/tcp --permanent   //永久


firewall-cmd


--zone=


public


--add-port


=80/tcp               //臨時
埠**
firewall-cmd


--zone=


public


--add-masquerade


--permanent    //開啟ip位址偽裝


//將8080**到80


firewall-cmd


--zone=


public


--add-forward


-port


=port=


80:proto=tcp:toport=


8080


--permanent
建立黑名單
//建立blacklist ipset


firewall-cmd


--permanent --zone=


public


--new


-ipset


=blacklist --


type


=hash:ip


//封禁 blacklist


firewall-cmd


--permanent --zone=


public


--add-rich


-rule


='rule source ipset=blacklist drop'


//檢視 blacklist


firewall-cmd


--ipset=blacklist --get-entries


//新增ip到黑名單


firewall-cmd


--permanent --zone=


public


--ipset=blacklist --add-entry


=212.237


.51.36


firewall-cmd


--permanent --zone=


public


--ipset=blacklist --add-entry


=188.226


.191


.66firewall-cmd


--permanent --zone=


public


--ipset=blacklist --add-entry


=80.211


.137


.182


firewall-cmd


--permanent --zone=


public


--ipset=blacklist --add-entry


=60.191


.66.226
禁止被ping（丟棄icmp包）
firewall-cmd


--permanent --zone=


public


--add-rich


-rule


='rule protocol value=icmp drop'
過載防火牆配置
firewall


-cmd--


reload
參考文章

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rhel7、centos7 下使用 firewall 封ip

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