Apache Webserver
The Apache HTTP Server (or simply Apache Webserver) is free, open-source software for serving websites and other content using the HTTP/HTTPS protocol. Developed by the Apache Software Foundation since 1995, it is one of the most popular web servers worldwide, known for its modularity, stability, and support for extensions such as PHP and SSL . It runs on platforms like Unix, Linux, and Windows.
Apache is the most reliable of all web servers: in use since the nineties, available on virtually every hosting provider, and with extensive documentation. Its weakness becomes apparent under load. Because it maintains a separate process for each visitor, its memory requirements increase with the number of simultaneous accesses.
In numbers: With 50 concurrent visitors, Apache operates smoothly. With 500, the same server quickly consumes several gigabytes of RAM, and the response time increases from 200 milliseconds to several seconds. Event-driven servers like LiteSpeed or Nginx handle the same load with a fraction of the resources. In our base station package, Apache runs with HTTP/2; in the high-speed environments, LiteSpeed is used.
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