Patents
US 12756682 B2: Systems and methods for publishing and using images of DNS zone configurations
- Granted
- 2026-10-06
- Filed
- 2024-12-06 application 18971898
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods for publishing and using images of domain name system (DNS) zone configurations are described. An image file containing a copy of some or all of the DNS records associated with a zone DNS server (e.g., a DNS server for a zone) may be stored in a repository. In response to detecting that the zone DNS server is unavailable, an image server system retrieves the image file and stores the image file in an image DNS server. The image server system notifies a higher-level DNS server that the image DNS server is a DNS server for the zone. In some examples, the image file includes a zone signing key (ZSK) associated with the image DNS server that is signed by a key signing key (KSK) associated with the zone DNS server. The image DNS server uses the signed ZSK to sign DNS records for subsequent authentication.
Source: PTBLXML, file of 2026-10-06 (ipgb20261006.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| CenturyLink Intellectual Property LLC 1,025 patents | US company or organization | Denver, CO | PTBLXML, file of 2026-10-06 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| John R.B. Woodworth | Amissville, VA | 47 | PTBLXML, file of 2026-10-06 | |
| Dean Ballew | Sterling, VA | 48 | PTBLXML, file of 2026-10-06 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04L | Transmission of digital information, e.g. telegraphic communication | H04L61/4511 | PTBLXML, file of 2026-10-06 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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