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Eliminating port 32771 conflicts

By default, the Process Engine communicates via RMI using port 32771. This can result in conflicts on Solaris platforms. The following sections describe the procedures necessary to eliminate port conflicts for Solaris.

Enabling port 32771 for Solaris

When Solaris starts up, it takes the first several ports, called anon ports, to use for its communication daemons. By default, the maximum tcp_smallest_anon_port is 32768. To use this port on Solaris-based systems, you must first enable the port by setting the smallest anon port to 32772. By doing so, the ports used by Solaris communication daemons will be 32772 or greater, leaving 32771 available for the Process Engine.

Alternatively, you can use any other port that is available for the RMI-based processes. The Solaris platform provides several different tools such as the netstat command to determine if a port is in use.

TIP lsof is a good freeware tool to determine port usage.

To determine the current tcp_smallest_anon_port setting

At the command prompt, enter the following:

ndd -get /dev/tcp tcp_smallest_anon_port

If the port is less than 32772, you must enable port 32771.

To enable port 32771 on Solaris

  1. Use a text editor to edit the /etc/rc2.d/s69inet file.
  2. Enter the following line:
  3. ndd -set /dev/tcp tcp_smallest_anon_port 32772

  4. Reboot the Process Engine.