Content selectable trusted DNS resolvers

• US 8,738,805 B1
• Filed: 08/12/2013
• Issued: 05/27/2014
• Est. Priority Date: 09/16/2010
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Roskind, James
• Primary Examiner(s): Rinehart, Mark
• Assistant Examiner(s): Hunt, Kenneth P
• Application Number:
  US13/964,660
• Time in Patent Office: 288 Days
• Field of Search: 709/245, 709217-219
• US Class Current: 709/245
• CPC Class Codes: H04L 61/106 across networks, e.g. mapping telephone numbers to data network addresses
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 61/4552 Lookup mechanisms between a plurality of directories; Synchronisation of directories, e.g. metadirectories

Abstract

Methods and systems for DNS resolution are provided. A method for DNS resolution may include identifying a domain name to be resolved. The method may further include determining whether resolver information indicating a global DNS resolver that is to be used to resolve the identified domain name has been received. If the resolver information has been received, a resolution of the identified domain name from the global DNS resolver is requested. And if the resolver information has not been received, the resolution of the identified domain name is requested from a local DNS resolver.

Claims

1. A computing device-implemented method for domain name system (DNS) resolution comprising:

identifying a domain name to be resolved; and

determining, by a first computing device, whether resolver information indicating a global DNS resolver to be used to resolve the identified domain name has been received from a second computing device, wherein

if the resolver information has been received, requesting, by the first computing device, a resolution of the identified domain name from the global DNS resolver, and wherein

if the resolver information has not been received, requesting, by the first computing device, the resolution of the identified domain name from a local DNS resolver.

2. The method of claim 1, wherein if the resolver information has not been received, the requesting comprises:

requesting the resolution of the identified domain name from both the global DNS resolver and the local DNS resolver; and

using a first available resolution of the identified domain name as received from either the global DNS resolver or the local DNS resolver.

3. The method of claim 1, further comprising:

providing an indication to the second computing device that the global DNS resolver is a trusted resolver, wherein the trusted resolver is configured to prevent a resolution of the identified domain name from being leaked.

4. The method of claim 3, wherein the second computing device comprises a content provider that transitively trusts the global DNS resolver based on the indication.

5. The method of claim 1, wherein the identifying comprises:

identifying a subset of a plurality of domain names to be resolved using the global DNS resolver, wherein the resolver information indicates that the global DNS resolver is to be used to resolve the subset of domain names.

6. The method of claim 5, wherein the subset of domain names correspond to links within content of a website provided by the second computing device to the first computing device.

7. A system for domain name system (DNS) resolution comprising:

a domain identification module configured to identify a domain name to be resolved; and

a resolver information module, implemented on a first computing device, configured to;

determine whether resolver information, indicating a global DNS resolver is to be used to resolve the identified domain name, has been received from a second computing device, wherein the resolver information module is configured to request a resolution of the identified domain name from;

the global DNS resolver, if the resolver information has been received, and

a local DNS resolver, if the resolver information has not been received.

8. The system of claim 7, wherein if the resolver information has not been received, the resolver information module is configured to:

request a resolution of the identified domain name from both the global DNS resolver and the local DNS resolver; and

use a first available resolution of the identified domain name as received from either the global DNS resolver or the local DNS resolver.

9. The system of claim 7, wherein the resolver information module is further configured to:

provide an indication to the second computing device that the global DNS resolver is a trusted resolver, wherein the trusted resolver is configured to prevent a resolution of the identified domain name from being leaked.

10. The system of claim 9, wherein the second computing device comprises a content provider that transitively trusts the global DNS resolver based on the indication.

11. The system of claim 7, wherein the domain identification module is configured to:

identify a subset of a plurality of domain names to be resolved using the global DNS resolver, wherein the resolver information indicates that the global DNS resolver is to be used to resolve the subset of domain names.

12. The system of claim 11, wherein the subset of domain names correspond to links within content of a website provided by the second computing device to the first computing device.

13. A computing device-implemented method for domain name system (DNS) resolution comprising:

identifying a plurality of domain names to be resolved; and

providing, by a first computing device, for at least one of the identified domain names, resolver information indicating a global DNS resolver to be used to resolve the at least one identified domain name, wherein

for the at least one of the identified domain names for which resolver information is provided, a second computing device is configured to request a resolution of the at least identified domain name from the global DNS resolver, and wherein

the second computing device is configured to request a resolution of the domain names for which resolver information is not provided from a local DNS resolver.

14. The method of claim 13, wherein the second computing device is configured to:

request the resolution of the of the domain names for which resolver information is not provided from both the global DNS resolver and the local DNS resolver; and

use a first available resolution of the domain names as received from either the global DNS resolver or the local DNS resolver.

15. The method of claim 13, further comprising:

receiving, at the first computing device, an indication from the second computing device that the global DNS resolver is a trusted resolver, wherein the trusted resolver is configured to prevent a resolution of the identified domain name from being leaked.

16. The method of claim 15, wherein the first computing device comprises a content provider that is configured to transitively trust the global DNS resolver based on the indication.

17. The method of claim 13, wherein the identifying comprises:

identifying a subset of a plurality of domain names to be resolved using the global DNS resolver, wherein the resolver information indicates that the global DNS resolver is to be used to resolve the subset of domain names.

18. The method of claim 17, wherein the subset of domain names correspond to links within content of a website provided by the first computing device to the second computing device.