:3268
(TCP)
Microsoft Global Catalog
High 风险TCP — System & Infrastructure
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端口概览
端口号
3268
服务名称
Microsoft Global Catalog
传输协议
TCP
类别
System & Infrastructure
安全风险
High
端口范围
已注册 (1024-49151)
什么是端口 3268?
Port 3268 is used by Microsoft Active Directory for the Global Catalog service, which provides a partial replica of all objects in the directory forest. LDAP clients query the Global Catalog to locate objects across multiple domains. This port is essential for cross-domain authentication in Windows enterprise environments.
TCP
System & Infrastructure
常用
安全注意事项
端口3268（Microsoft Global Catalog）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。