IBM Data and AI Ideas Portal for Customers


This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:


Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,


Post your ideas

Post ideas and requests to enhance a product or service. Take a look at ideas others have posted and upvote them if they matter to you,

  1. Post an idea

  2. Upvote ideas that matter most to you

  3. Get feedback from the IBM team to refine your idea


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

IBM Employees should enter Ideas at https://ideas.ibm.com


Add a new idea Subscribe
Workspace Db2 for z/OS
Created by Guest
Created on Feb 15, 2022

RELATED IDEAS

Removal of ephemeral port use for sysplex/dvipa monitoring from Db2 DDF

In addition to the ports configured in BSDS (INADDR_ANY), Db2 DDF opens an additional ephemeral TCPIP port. It binds to the DVIPA address and requests an ephemeral port be assigned, the number is randomly chosen from a pool by TCPIP.
This feature is used by Db2 for monitoring and getting notified that TCPIP left the sysplex or the dvipa got deleted. This port is not configurable and Db2 does not accept any connections to this port.

BUT: security tools and vulnerability scanners stumble across this open ephemeral port. It is unknown and cannot be whitelisted or similar, as every restart of the Db2 member assigns a new port number.
So the TCPIP view of a Db2 member does not look consistent and somewhat unpredictable.
TSO Command "netstat conn server" also shows the additional listen port for Db2's DIST address space.


This IDEA is about evaluating the removal of the ephemeral port use for sysplex/dvipa monitoring because since the Db2 apar (PI79102, PI79095) was released, newer releases of TCPIP now contain the functionality to notify Db2 when it leaves the sysplex.
So these new funcionality of TCPIP should be used by Db2 instead of opening the additional ephemeral port.

This was suggested by Db2 development in IBM support case TS008301257.

Needed By Not sure -- Just thought it was cool

By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.