Patent ID: 9380023
Filing Date: 2016-06-28
CPC Classification: H04L

Claim Text:
1. A cross-domain system for transferring files from a client coupled to a first network in a first network domain to a server coupled to a second network in a second network domain, the cross-domain system comprising: a first server in the first network domain having an input adapted to receive files from the client via the first network and store the received files in a first temporary memory, the first server configured to process the received files based on predetermined instructions stored in at least one associated first file stored in a first permanent memory, the first server also having an output for transmitting the processed received files; a one-way data link having an input coupled to the output of the first server and an output; and a second server in the second network domain having an input adapted to receive the processed received files from the first server via the one-way data link and store the received files in a second temporary memory, the second server configured to further process the received files based on predetermined instructions stored in at least one associated second file stored in a second permanent memory, the second server also having an output adapted to transmit the further processed received files to the server via the second network; wherein the first server is configured to store the at least one associated first file in the first permanent memory with first security policies which prevent the at least one associated first file from disrupting operation of the first server; wherein the first and second servers are configured to allow the at least one associated first file and the at least one associated second file to be overwritten to update the processing performed by the first server and the second server, respectively, while maintaining the respective security policies applied to such files.