Quotas are used to limit the amount of disk space a user or group can use on the server. There are generally two different methods of managing quotas: first, an empty file system can be created and mounted for a specific user. An advantage of this method is that no additional package is required. Second, the quota tool can be used to dynamically manage the disk quota of a user or a group. A big advantage is the possibility to change quotas on the fly without any complicated disk resizing. This guide mainly focuses on the creation of user specific quotas; however, all the commands are exactly the same for group quotas. Instead of a user name, a group name can be used in the described commands.