If you want to change the Node Manger Listen Port first bring down the " Oracle Weblogic NodeManager" services to down .Next go to
Driver\11g_Installedfolder\wlserver_10.3\common\nodemanager\nodemanager.properties
"ListenPort=9550" change this port number and restart the node manager,
For the weblogic : D:\Middleware\user_projects\domains\bifoundation_domain\config\config.xml there u can find the port number between "Server" tag
PS: Take a backup of original nodemanager.properties and config .xml files
Driver\11g_Installedfolder\wlserver_10.3\common\nodemanager\nodemanager.properties
"ListenPort=9550" change this port number and restart the node manager,
For the weblogic : D:\Middleware\user_projects\domains\bifoundation_domain\config\config.xml there u can find the port number between "Server" tag
PS: Take a backup of original nodemanager.properties and config .xml files