Which web server allows the configuration of multiple domains within the same virtual host?

The Apache HTTP Server is a powerful web server that supports the configuration of multiple domains within the same virtual host using a feature known as Name-based Virtual Hosting. This allows a single IP address to host multiple domains by differentiating requests based on the HTTP Host header sent by the client.

When a request arrives, Apache can look at the host information provided by the client and serve the appropriate website or application based on the domain requested, all while using the same underlying configuration for handling requests. This flexibility enables efficient resource use and simplifies management when hosting multiple sites.

Other web servers, like NGINX and Microsoft IIS, do have features to support multiple domains, but they handle configurations differently. NGINX uses separate server blocks for configurations, while IIS employs a site concept that requires unique identifiers. Lighttpd shares some similar capabilities but isn't as widely used or feature-rich as Apache for complex virtual hosting setups. Therefore, Apache's extensive documentation and community support further highlight its capability in managing multiple domains within the same virtual host.