Is OHS a Web Server?


Scott Campbell

The question of whether OHS is a web server is often asked by individuals who are new to the world of web development. OHS, which stands for Oracle HTTP Server, is indeed a web server that plays a crucial role in hosting and serving web applications. In this article, we will delve into the details of what OHS is and how it functions as a web server.

What is OHS?
OHS is a component of Oracle Fusion Middleware that provides a robust and secure platform for hosting web-based applications. It is built on Apache HTTP Server, one of the most widely used open-source web servers globally. OHS extends the functionality of Apache by adding additional features and capabilities that are specific to Oracle products.

Key Features:

  • Scalability: OHS can handle high traffic volumes and efficiently serve multiple concurrent requests.
  • Security: It offers various security features such as SSL/TLS encryption, access control, and authentication mechanisms to ensure data confidentiality and integrity.
  • Load Balancing: OHS can distribute incoming requests across multiple backend servers to optimize performance and ensure high availability.

How Does OHS Work?

OHS Architecture

OHS follows a modular architecture that consists of several key components:

OHS Core

At the heart of OHS lies its core module, which handles all incoming client requests. It processes these requests based on predefined rules and configurations.


OHS supports various modules that enhance its functionality. These modules include mod_ssl for secure communication over HTTPS, mod_wl_ohs for integrating with Oracle WebLogic Server, mod_rewrite for URL rewriting, and many more.

Configuration Files

OHS utilizes configuration files to define its behavior. The primary configuration file is httpd.conf, which contains directives specifying various settings such as ports, virtual hosts, and server-wide options.

Deploying Applications on OHS

Virtual Hosts

OHS supports virtual hosts, allowing multiple websites or applications to be hosted on a single server. Each virtual host can have its own set of configurations and resources.

Deployment Descriptor Files

To deploy web applications on OHS, developers need to provide deployment descriptor files such as web.xml or application-specific configuration files. These files contain information about the application’s structure, resources, and settings.

Integration with Oracle Products

One of the significant advantages of OHS is its seamless integration with various Oracle products. For instance, it can act as a front-end server for Oracle WebLogic Server or Oracle Forms and Reports Services, providing enhanced performance and security.


In conclusion, OHS is indeed a web server that offers powerful features for hosting and serving web-based applications. It extends the capabilities of Apache HTTP Server and provides additional functionality specific to Oracle products. With its scalability, security measures, load balancing capabilities, and seamless integration with other Oracle technologies, OHS proves to be a reliable choice for organizations seeking a robust web server solution.

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