Details
If enabled, the default DB2 instance will be assigned a default port of TCP:50000 for TCP/IP communication. TCP:50000 is a widely known DB2 port, so this port assignment should be changed. Though deprecated, if you still use the DAS, its default port uses TCP:523 and should be changed.
Solution
Assign a non-default port (a value other than 50000) to the default DB2 instance.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Windows.