US 9,854,067 B2 · Controlling client access to a server application

Abstract

An approach is provided for controlling a rate at which requests from a client computer will be received by a server application executed on a server computer. Requests are received by the server computer at different times from the client computer and time intervals between different pairs of successive requests are measured. Based on the time intervals, (1) a historical rate of requests from the client computer is determined and a limit on a rate for the server application to receive subsequent requests from the client computer is determined and enforced based on the historical rate of requests, or (2) a range of the time intervals is determined to be within a predefined range of time intervals and based on the range being within the predefined range, a denial of service attack or an overload of requests from the client computer is determined and blocked.

Claims14

Dependent claims

A method of controlling a rate at which requests from a client computer will be received by a server application, executed on a server computer, for processing, the method comprising the steps of:

the server computer receiving a multiplicity of requests at a respective multiplicity of different times from the client computer and measuring a multiplicity of time intervals between different pairs of successive requests of the multiplicity of requests;
the server computer determining a historical rate of requests from the client computer based in part on the multiplicity of time intervals;
and
based in part on the historical rate of requests from the client computer, the server computer determining and enforcing a limit on a rate for the server application to receive subsequent requests from the client computer for processing.

1 more element

A computer program product for controlling a rate at which requests from a client computer will be received by a server application, executed on a server computer, for processing, the computer program product comprising:

one or more computer-readable storage devices and program instructions stored on the one or more storage devices, the program instructions comprising:
program instructions to receive a multiplicity of requests at a respective multiplicity of different times from the client computer and measure a multiplicity of time intervals between different pairs of successive requests of the multiplicity of requests;
program instructions to determine a historical rate of requests from the client computer based in part on the multiplicity of time intervals;
and
program instructions to determine and enforce, based in part on the historical rate of requests from the client computer, a limit on a rate for the server application to receive subsequent requests from the client computer for processing.

2 more elements

Dependencies are inferred from the claim text.

Controlling client access to a server application

Life of this patent

Controlling client access to a server application

Life of this patent

Abstract

Claims14