How to find port in db2 database

Hello Everyone,
I am using a db2 V8.1 and try to connect to it via JDBC. I am using the app-driver,
Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
however I get an errormessage: java.sql.SQLException: No suitable driver. I can see though that the driver is registered at the DriverManager, so I assume that something in the database connection part is wrong. I have tried to use the url in the way jdbc:db2://host:port/DBName, however I don't know how to find out which port my DB uses. Can someone tell me how to find it under Linux? And also I have read somewhere that one could use the IP-address instead of host:port, is that possible as well?
thank you very much in advance

No, the IP address will only replace host, not port. You've got to know the port that the database listener is attached to.
The DB2 JDBC docs ought to tell you what the default port is. I believe it's 6789. (It was back in Apr-2000 when I last connected to DB2.)
I don't know what the Linux/Unix command is to list all the active ports, but on Windoze it's netstat -a. I think it's the same in Unix. You should try it and see if it tells you about an app listening on port 6789. If not, speak to your DB admin and ask if the listener is up and running on the database server. - MOD

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