In some cases, the ports used for accessing Oracle E-Business Suite are non-standard to provide better security. In general, all ports used by the Oracle backend systems can be freely configured by the Oracle application administrator. The standard HTTP 80 and HTTPS 443 ports for Internet-facing traffic are supported and may be used during the configuration. However, the purpose of an ADC is to provide standard ports 80/443 for Internet-facing traffic and route that traffic to non-standard ports used on the Oracle backend systems as a passive security measure.