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:
GET DBM CFG
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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