Generally copyright vests in the author of the work. Certain national laws provide for exceptions and, for example, regard the employer as the original owner of a copyright if the author was, when the work was created, an employee and employed for the purpose of creating that work. In the case of some types of creations, particularly audiovisual works, several national laws provide for different solutions to the question that should be the first holder of copyright in such works.
Many countries allow copyright to be assigned, which means that the owner of the copyright transfers it to another person or entity, which then becomes its holder. When the national law does not permit assignment it usually provides the possibility to license the work to someone else. Then the owner of the copyright remains the holder, but authorizes another person or entity to exercise all or some of his rights subject to possible limitations. Yet in any case the "
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A proxy server is a server that acts as an intermediary between a workstation user and the Internet so that security, administrative control, and caching service can be ensured.
A proxy server receives a request for an Internet service (such as a Web page request) from a user. If it passes filtering requirements, the proxy server, assuming it is also a cache server, looks in its local cache of previously downloaded Web pages. If it finds the page, it returns it to the user without needing to forward the request to the Internet. If the page is not in the cache, the proxy server, acting as a client on behalf of the user, uses one of its own
Source: Whatis.com