Indicates whether to log connections. Also controls the logging of
the connection number. Connection number tracing, if enabled, goes to both
the derby.log file and the network server console.
Syntax
 derby.drda.logConnections=[true|false]
 Example
 derby.drda.logConnections=true 
Static or dynamic
Dynamic. System values can be
changed by using commands or the servlet interface after the Network Server
has been started.