Administrator Guide

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Dynamic Data Masking Service Refuses Connection Request

If the Dynamic Data Masking service refuses a connection from a client, you receive an

IO Exception, Connection Refused

error.

The following table describes the possible reasons for the connection refusal:

Reason	Solution
Error in the listener address	Run a ping command from the system running the Management Console to the Dynamic Data Masking service. Use the Dynamic Data Masking host name. For example: ping 10.65.48.73 .
Error in the listener port	Verify that the firewall has the Dynamic Data Masking listener port and administrator port open.
Undefined service name	Verify the database service name. Add a service name if one does not exist.
Database server is down	Restart the database.