Applies ToHost Integration Server 2016

Symptoms

The Microsoft Service for DRDA (DRDA Service) crashes when an unauthorized TCP/IP client tries to connect to the server.

Cause

The DRDA Service allows blocking of incoming clients by providing a list of clients that are allowed to connect. This is done by listing allowed clients in the ClientIpAddressesAllowed property in the MsDrdaService.exe.config file. The DRDA Service crashes when a request from a TCP/IP client that is not listed in the ClientIpAddressesAllowed property tries to connect to the server.

Resolution

This issue is fixed in Cumulative Update 2 for Host Integration Server 2016.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

Learn about the terminology Microsoft uses to describe software updates.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.