Is port 1688 (Microsoft KMS) dangerous?

Port 1688 is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose with standard security practices.

Should port 1688 be open on my firewall?

Port 1688 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 1688 use?

Port 1688 (Microsoft KMS) uses the TCP transport protocol and falls under the System & Infrastructure category.

:1688 (TCP)

Microsoft KMS

Low Riesgo

TCP — System & Infrastructure

Resumen del puerto

Número de puerto 1688

Nombre del servicio Microsoft KMS

Protocolo de transporte TCP

Categoría System & Infrastructure

Riesgo de seguridad Low

Rango de puertos Registrados (1024-49151)

Qué es el puerto 1688?

Port 1688 is used by Microsoft Key Management Service (KMS) for volume license activation of Windows and Office products. Organizations with volume licensing use a KMS server to activate multiple Microsoft products without individual product keys. This port must be accessible from all machines that need KMS activation.

TCP System & Infrastructure De uso común

Consideraciones de seguridad

El puerto 1688 (Microsoft KMS) está clasificado como bajo riesgo. Este servicio usa cifrado o tiene una superficie de ataque mínima, siendo relativamente seguro de exponer.

Recomendación: Aplica prácticas de seguridad estándar. Mantén el software actualizado y monitorea el acceso.

Puertos relacionados — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Términos relacionados

Bandwidth Latency Packet Loss Ping Throughput ASN