Patent ID: 7752263

Claim:
A method for provision of an address of an online computer which is connected to a data network, for at least one receiving computer wherein the method comprises: the online computer transmitting a first data set comprising the identification of at least one server structure globally accessible over the data network, to the receiving computer, the server structure being selected from a plurality of available server structures; and transmitting a second data set which identifies at least one codeword, to the receiving computer; and assigning a time-limited validity to the identified codeword; wherein the second data set identifies a plurality of codewords having time-limited validity, the durations of such validities covering different time intervals; the server structure storing said address of the online computer together with said identified codeword, the receiving computer sending a query to the server structure, wherein said query contains the identified codeword; and the server structure sending back, as a response, the address of the online computer.