Client traffic redirection service

• US 10,200,340 B2
• Filed: 05/08/2015
• Issued: 02/05/2019
• Est. Priority Date: 12/28/2011
• Status: Active Grant

• Current Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Original Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Inventors: Sinn, Frederick David, Pietsch, Justin
• Primary Examiner(s): Joshi, Suraj M
• Assistant Examiner(s): Means, Jaren
• Application Number:
  US14/707,644
• Publication Number:
  US 20150244671A1
• Time in Patent Office: 1,369 Days
• CPC Class Codes: H04L 2101/604 Address structures or formats
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/2514 between local and global IP addresses
• CPC Class Codes: H04L 61/2557 Translation policies or rules
• CPC Class Codes: H04L 61/256 NAT traversal
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]

Abstract

Disclosed are various embodiments for performing network traffic redirection at the client side. Sending of data to a service at a network address is initiated. Whether the network address is in a predetermined network address range is determined. The network address is translated, when the network address is in the predetermined network address range, to one of multiple other network addresses based at least in part on an availability of the service at the other network address. The data is routed to the other network address.

Claims

1. A non-transitory computer-readable medium embodying a program executable in a client computing device coupled to a network, wherein when executed the program causes the client computing device to at least:

receive data to be sent to a service at a first network address;

determine whether the first network address is in a predetermined redirection network address range, the predetermined redirection network address range being unroutable by the network;

perform a reverse domain name system (DNS) query on the first network address to obtain a domain name based at least in part on a determination that the first network address is in the predetermined redirection network address range;

perform a forward DNS query on the domain name to obtain, based at least in part on an identification of a failure of the service at a third network address by a redirection computing device, a second network address instead of the third network address; and

initiate routing of the data to the service at the second network address.

2. The non-transitory computer-readable medium of claim 1, wherein the data is received from a service client executed in the client computing device.

3. The non-transitory computer-readable medium of claim 1, wherein when executed the program further causes the client computing device to at least configure a network address translation (NAT) filter to establish a rule that routes from the first network address to the second network address.

4. The non-transitory computer-readable medium of claim 3, wherein when executed the program further causes the client computing device to at least configure the NAT filter to establish a reverse rule to route from the second network address to the first network address.

5. The non-transitory computer-readable medium of claim 1, wherein the reverse domain name system (DNS) query is performed in the client computing device.

6. The non-transitory computer-readable medium of claim 5, wherein the forward DNS query on the domain name is performed in the client computing device.

7. A system, comprising:

at least one memory device to store computer-readable instructions thereon; and

at least one computing device comprising a processor, wherein when executed by the processor the computer-readable instructions cause the at least one computing device to at least;

determine a current status of a plurality of service providers that are configured to provide a service, the current status comprising availability of the service at a second network address and a failure of the service at a third network address;

generate mapping data that maps a first network address in an unroutable network address range to the second network address based at least in part on the availability of the service at the second network address and the failure of the service at the third network address; and

provide the mapping data to a redirection service executed in a client computing device.

8. The system of claim 7, wherein the mapping data indicates a proportion of data to be redirected from the first network address to the second network address.

9. The system of claim 7, wherein the client computing device is connected to a network, and the unroutable network address range is in a predetermined network address range for redirection by the network.

10. The system of claim 7, wherein the redirection service is configured by the mapping data to cause data sent by a service client to the first network address to be redirected to the second network address.

11. The system of claim 7, wherein the redirection service is configured by the mapping data to update a reverse domain name system (DNS) mapping for the first network address to point to a domain name corresponding to the second network address.

12. The system of claim 7, wherein the redirection service is configured by the mapping data to update a rule in a network address translation (NAT) filter executed in kernel space of the client computing device.

13. The system of claim 7, wherein the second network address corresponds to a load balancer for the at least one of the plurality of service providers.

14. The system of claim 7, wherein when executed the instructions further cause the at least one computing device to at least provide the mapping data to the redirection service via a push arrangement.

15. The system of claim 7, wherein when executed the instructions further cause the at least one computing device to at least provide the mapping data to the redirection service via a pull arrangement.

16. The system of claim 7, wherein the second network address and the third network address correspond to different ones of the plurality of service providers.

17. A method, comprising:

determining, by at least one computing device, a current status of a plurality of service providers that are configured to provide a service, the current status comprising availability of the service at a second network address and a failure of the service at a third network address;

generating, by the at least one computing device, mapping data that maps a first network address in an unroutable network address range to a second network address based at least in part on the availability of the service at the second network address and the failure of the service at the third network address; and

configuring, by the at least one computing device, a domain name system (DNS) server to map a reverse DNS query for the first network address to a domain name corresponding to the second network address based on the mapping data.

18. The method of claim 17, wherein the domain name corresponding to the second network address is different than a domain name corresponding to the first network address.

19. The method of claim 17, wherein the unroutable network address range is in a predetermined network address range for redirection.

20. The method of claim 17, wherein the second network address corresponds to a load balancer for at least two of the plurality of service providers.