firewall防火牆彙總命令參考

systemctl start firewalld # 開啟防火牆

firewall-cmd --zone=public --add-port=8080/tcp --permanent # 放行指定單個埠

firewall-cmd --zone=public --add-port=3306/tcp --add-port=6379/tcp --permanent # 新增放行指定單個埠

firewall-cmd --reload # 生效新增的要放行的埠

firewall-cmd --list-ports # 檢視所有被放行的埠

firewall-cmd --zone=public --remove-port=8081/tcp --permanent # 取消指定一開放埠

# 開啟防火牆

systemctl start firewalld

# 這裡是多行注釋----------------

:----------------------------

# 重啟防火牆

firewall-cmd --reload

# 檢視埠號 檢視當前所有tcp埠

netstat -ntlp

# 檢視所有80埠使用情況

netstat -ntulp |grep 80

檢視埠號是否開啟，執行命令：

firewall-cmd --query-port=8080/tcp

# 關閉80埠

firewall-cmd --zone=public --remove-port=80/tcp --permanent

# 重啟防火牆

firewall-cmd --reload

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