Debian is just one of many Linux distributions. Selecting which distribution is best for your deployment can be a rather daunting task. The reason for so many distributions is that the developers or sponsors of each have a different vision of which software should be installed by default, which software is appropriate for particular tasks, and how the system is best administered. This means that selecting a distribution that matches your purpose and preferences will make installation and administration easier.
Any distribution can be made to reflect an administrator's preferences, by installing non-default software or, in some cases, software not native to the distribution software and using non-default configurations.
However, selecting an appropriate distribution means less effort is necessary to fulfill the and administrator's requirements.
