:523
(TCP/UDP)
Medium Risk
IBM-DB2
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TCP/UDP — Database
Port Overview
Port Number
523
Service Name
IBM-DB2
Transport Protocol
TCP/UDP
Category
Database
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 523?
IBM DB2 Discovery Service. Used by IBM DB2 database for instance discovery and database cataloging.
TCP/UDP
Database
Commonly Used
Security Considerations
Port 523 (IBM-DB2) 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.