6.6.48: Administering ports (overview)
The product uses the following ports. See below for port assignment guidelines,
particularly notes about the effects of port changes on other WebSphere components.
Bootstrap port
Location Service Daemon (LSD) port
ORB listener port for RMI/IIOP
- One for each application server
- Value is assigned randomly
- To make the value static, add -Dcom.ibm.CORBA.ListenerPort=xxxx where
xxxx is a valid TCP port (see guidelines below).
- For application servers, add the argument to the Command Line Arguments setting of the application server properties.
- One for each application server
- Default value is 9080
Secure port for internal HTTP transport
- One for each application server
- Default value is 9443
Administrative application port
DrAdmin port
Object Level Trace and Debugger port
Guidelines for assigning ports
Though WebSphere Application Server provides default values, the above port
numbers can be modified by the system or
network administrator. Here are some guidelines:
- Ports can range from 1024 to 64000. Choose a port that does not
conflict with existing ports in use. To check ports in use:
- Use the netstat command (netstat -a)
- View the /etc/services file on UNIX
- View the drive\winnt\system32\drivers\etc\services file on Windows NT
- Ports must be unique in the scope of each physical host. That is,
two servers on the same machine cannot have the same port values.
- The same port numbers can be used for servers running on
different physical hosts.
- Remember to configure firewalls to allow traffic to pass for each assigned
port. For security, try to minimize ports.