The CONNECTION section contains the port number and host name used to connect to a Data Vault repository. It can also contain various other system parameters relating to operations for the connection (note that these are usually left as the Nucleus default values, and so generally do not appear in the nucleus.ini file).
The server-side nucleus.ini file should contain a CONNECTION section for each database instance that will be running concurrently on the same host machine (since each instance requires its own port number). Any number of non-concurrent database instances may use the same connection.
CONNECTION sections in client-side nucleus.ini files specify port numbers and host names for connection to database instances running on remote engines.
The format for the section header is [CONNECTION
connection-name
], where
connection-name
can be any string of 31 characters or less. The connection name will be specified when starting or connecting to a database instance on the specified host using the specified port, in the following manner: