Linux VPS hosting refers to the type of hosting solution in which resources are completely owned by the user in a private environment. VPS is somewhat different than other shared hosting in which resources are being shared and hence may interfere with each other. In VPS resources are fully dedicated to user and user have full command over RAM, disk space, processing, bandwidth, and many more. In VPS hosting one powerful physical server is partitioned into multiple virtual servers and each server is owned independently by the individual user.
One of the best parts when choosing VPS hosting is that you have full root access to the server. With root access, you have complete control over the server environment to tweak it precisely for your needs. If you need a custom software package installed or port opened, you can do so without having to wait for your hosting provider to support it.