:138
(UDP)
High 风险
NetBIOS Datagram
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UDP — System & Infrastructure
端口概览
端口号
138
服务名称
NetBIOS Datagram
传输协议
UDP
类别
System & Infrastructure
安全风险
High
端口范围
知名端口 (0-1023)
什么是端口 138?
NetBIOS Datagram Service. Provides connectionless messaging between NetBIOS hosts for browsing, announcements, and other lightweight network operations.
UDP
System & Infrastructure
常用
安全注意事项
端口138（NetBIOS Datagram）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。