:666
(TCP/UDP)
Medium Risk
Doom
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TCP/UDP — Gaming
Port Overview
Port Number
666
Service Name
Doom
Transport Protocol
TCP/UDP
Category
Gaming
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 666?
Originally used by the game Doom for multiplayer over IPX networks. Also assigned to MDQS (Multi-Device Queuing System). A well-known port number in gaming history.
TCP/UDP
Gaming
Security Considerations
Port 666 (Doom) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.