Oracle HTTP Server (OHS) is a web server based on the Apache HTTP Server, created by the Oracle Technology Network. The web server is based on Apache version 2.2. OHS, like Apache 2.2, includes support for IPv6.
It is a Web Tier component of the Oracle Fusion Middleware.
Features:
SSL/TLS security
Virtual host
Proxy Server
Mod_PLSQL interface for executing PL/SQL stored procedures in an Oracle database