You need to give more information if you really want some help.
"A license may be granted by a party ("licensor") to another party ("licensee") as an element of an agreement between those parties. A shorthand definition of a license is "an authorization (by the licensor) to use the licensed material (by the licensee)."
In particular, a license may be issued by authorities, to allow an activity that would otherwise be forbidden. It may require paying a fee and/or proving a capability. The requirement may also serve to keep the authorities informed on a type of activity, and to give them the opportunity to set conditions and limitations."
[http://en.wikipedia.org/wiki/License, 11.11.2014]
As you set the labels confluence and confluence-administrator, so here is a FAQ for Confluence licensing.
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