:20000
(TCP)
High 风险
Webmin / DNP3
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TCP — Remote Access
端口概览
端口号
20000
服务名称
Webmin / DNP3
传输协议
TCP
类别
Remote Access
安全风险
High
端口范围
已注册 (1024-49151)
什么是端口 20000?
Used by Webmin, a web-based Linux/Unix system administration interface. Also assigned to DNP3 (Distributed Network Protocol) used in industrial control and SCADA systems. Both uses carry elevated risk if exposed to the public internet.
TCP
Remote Access
常用
安全注意事项
端口20000（Webmin / DNP3）被归类为高风险。此端口是自动扫描和暴力破解攻击的常见目标。如必须暴露，请将访问限制为已知IP地址。
建议：使用防火墙规则将可信IP列入白名单。启用速率限制和入侵检测。