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Finding the connection port in DB2

This tip tells you how to find the client connection port for multiple DB2 instances.

Many times DBAs gets confused about connection ports when there are two or more instances on same server. This tip address this issue. It has been tested on DB2 version 6, 7 and 8.

To get the connection port, issue this command at the DB2 command prompt:


Note the information displayed, such as:

TCP/IP Service name (SVCENAME) = db2cdb2inst10

This is the service name to which the TCP/IP port is bound to. You can use this service name to connect from the client or you can also verify the port in the /etc/services file. Mostly port numbers start from 50000 from instance one.

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