Patent ID: 8930401
Filing Date: 2015-01-06
Classification: G06F

Abstract:
1. A system comprising a first computer system, a file server that is executed on the first computer system, a second computer system, and a client that is executed on the second computer system, wherein: the client is configured to: the file server is configured to: receive the first communication; store the computer file on the first computer system; extract the proper subset of the first access control data from the first communication; store the extracted proper subset of the first access control data in extended attributes of the first computer file stored on the first computer system, the first computer system having all of the at least one user identifier and the at least one group identifier of the first access control data, wherein the file server stores thereon computer files, including the first computer file, from multiple users of multiple clients, including the client, under a same user identifier in standard file attributes of the computer files, and stores access control data of the computer files in extended attributes of the computer files, wherein each of the multiple client computers stores thereon local copies of the computer files received from the file server by extracting the access control data thereof and storing the access control data in the standard file attributes of the computer files, wherein the access control data of the computer files is provided by the multiple clients such that access to the computer files by the multiple clients is controlled by the multiple clients and not by the file server.