You should be able to set the site to listen on 127.0.0.1 by following this section of the documentation
Creating the Web Site Configuration File
The key information defined in a Web site configuration file includes the following:
- The Web context for each application bound to the site, which is appended to the URL used to access the site (for example, /em).
- The protocol the site uses. In an OPMN-managed environment, this value will be overridden by the protocol specified in opmn.xml.
- The port the site listens on. In an OPMN-managed environment, this value will be overridden by the port range specified in opmn.xml.
- The location of the access log file, which tracks user access to the site.
The most straightforward way to create a new configuration file is to make a copy of the default Web site configuration file, default-web-site.xml, which is located in the ORACLE_HOME/j2ee/instance/config directory. Name the file according to the following convention:
webSiteName-web-site.xml
The typical configuration file includes a root element containing attributes that specify the following:
host: The host for this Web site, as either a DNS host name or an IP address. If a server has multiple IP addresses, you can use the ALL setting to listen to all the IP addresses.
port: The Web site listener port.
display-name: The for-display name of the Web site.
virtual-hosts: Any additional domains bound to this Web site.