Java DB

Apache Derby

Derby Server and Administration Guide

Derby Getting Started
Derby Reference Manual
Derby Developer's Guide
Derby Performance Tuning
Derby Server and Admin Guide
Derby Tools and Utilities
Derby Server and Admin Guide
-Part one: Derby Server Guide
-Derby in a multi-user environment
-Using the Network Server with preexisting Derby applications
-The Network Server and JVMs
-Installing required jar files and adding them to the classpath
-Starting the Network Server
-Shutting down the Network Server
-Obtaining system information
-Accessing the Network Server by using the network client driver
-Accessing the Network Server by using a DataSource object
-XA and the Network Server
-Using the Derby tools with the Network Server
-Differences between running Derby in embedded mode and using the Network Server
-Setting port numbers
-Managing the Derby Network Server
-Managing the Derby Network Server remotely by using the servlet interface
-Derby Network Server advanced topics
-Derby Network Server sample programs
-Part two: Derby Administration Guide
-Checking database consistency
-Backing up and restoring databases
-Replicating databases
-Logging on a separate device
-Obtaining locking information
-Reclaiming unused space

 

Network Server security

By default, the Derby Network Server will only listen on the localhost. Clients must use the localhost host name to connect. By default, clients cannot access the Network Server from another host. To enable connections from other hosts, set the derby.drda.host property, or start the Network Server with the -h option in the java org.apache.derby.drda.NetworkServerControl start command.

In the following example the server will listen only on localhost and clients cannot access the server from another host.

java org.apache.derby.drda.NetworkServerControl start

In the following example, the server runs on host machine sampleserver.sampledomain.com and also listens for clients from other hosts. Clients must specify the server in the URL or DataSource as sampleserver.sampledomain.com:

java org.apache.derby.drda.NetworkServerControl start 
   -h sampleserver.sampledomain.com
To start the Network Server so that it will listen on all interfaces, start with an IP address of 0.0.0.0, shown in the following example: 
java org.apache.derby.drda.NetworkServerControl start -h 0.0.0.0

A server that is started with the -h 0.0.0.0 option will listen to client requests that originate from both localhost and from other machines on the network.

However, administrative commands (for example, org.apache.derby.drda.NetworkServerControl shutdown) can run only on the host where the server was started, even if the server was started with the -h option.

 

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