Best Linux Server Software

The best Linux server software can be determined by looking at several factors. Which one is best for a given user will ultimately depend on their end goal, because some web servers are geared specifically for certain types of clients, while others are the best in terms of speed, and others specialize in security.
By looking at web server usage you can get an idea of which servers are most popular. Netcraft provides this data since 1995, offering graphical views of web server trends. From this data it appears that Microsoft's IIS web server is the only Windows pure play, while Apache is clearly the most preferred web server software when judged by volume. Apache is a cross-platform software that will run on Windows and Linux. Google also makes the list with their proprietary server software.