Is port 9389 (Active Directory Web Services) dangerous?

Port 9389 is classified as high risk. It is a common target for automated scanning and brute-force attacks. Restrict access to trusted IPs if exposure is necessary.

Should port 9389 be open on my firewall?

Port 9389 should only be open with strict firewall rules whitelisting trusted IP addresses. Enable rate limiting and intrusion detection systems.

What transport protocol does port 9389 use?

Port 9389 (Active Directory Web Services) uses the TCP transport protocol and falls under the System & Infrastructure category.

:9389 (TCP)

Active Directory Web Services

High 风险

TCP — System & Infrastructure

端口概览

端口号 9389

服务名称 Active Directory Web Services

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 9389?

Port 9389 is used by Active Directory Web Services (ADWS), a Windows service introduced in Windows Server 2008 R2 that provides a web service interface to Active Directory domain services. PowerShell Active Directory cmdlets and Active Directory Administrative Center use this port to communicate with domain controllers. This port is required for modern Windows AD administration tools.

TCP System & Infrastructure

安全注意事项

端口9389（Active Directory Web Services）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。

Active Directory Web Services

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端口概览

什么是端口 9389?

安全注意事项

相关端口 — System & Infrastructure

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