Is port 691 (MS Exchange Routing) dangerous?

Port 691 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 691 be open on my firewall?

Port 691 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 691 use?

Port 691 (MS Exchange Routing) uses the TCP transport protocol and falls under the Email category.

:691 (TCP)

MS Exchange Routing

Medium Riesgo

TCP — Email

Resumen del puerto

Número de puerto 691

Nombre del servicio MS Exchange Routing

Protocolo de transporte TCP

Categoría Email

Riesgo de seguridad Medium

Rango de puertos Conocidos (0-1023)

Qué es el puerto 691?

Microsoft Exchange Server Link State routing protocol, used internally by Exchange 2000/2003 servers for routing topology. Deprecated in Exchange 2007.

TCP Email

Consideraciones de seguridad

El puerto 691 (MS Exchange Routing) está clasificado como riesgo medio. Aunque este servicio se expone comúnmente, considera usar alternativas cifradas cuando estén disponibles.

Recomendación: Mantén el servicio actualizado. Monitorea los registros en busca de actividad inusual.

Puertos relacionados — Email

24 Private Mail System 25 SMTP 26 RSFTP 50 RE-MAIL-CK 58 XNS-MAIL 109 POP2 110 POP3 143 IMAP

Términos relacionados

ARP FTP HTTP ICMP IMAP NTP