1. Allow access from other machines on the LAN.
You need to edit web.xml file located at
where %PCI% is the folder where you uncompressed the Pentaho preconfigured install.
Look for the string base-url.
2. Change the default port 8080.
Sometimes port 8080 is already being used by another application, possibly Tomcat. Pentaho has a web container using port 8080 that may conflict with the existing application.
You need to edit server.xml located at:
Look for the string 8080.
Change the port number to your desired number. You may now restart the Pentaho BI platform.