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1. 发明授权

US11025482B2 Resilient domain name service (DNS) resolution when an authoritative name server is degraded 有权
公开(公告)号：US11025482B2
公开(公告)日：2021-06-01
申请号：US15881596
申请日：2018-01-26
申请人： Verisign, Inc.
发明人： Shumon Huque , Burton S. Kaliski, Jr. , Eric Osterweil , Frank Scalzo , Duane Wessels , Glen Wiley
IPC分类号： H04L12/24 , H04L29/12 , H04W24/04 , H04L29/14
摘要： In one embodiment, a resolution resiliency application modifies domain name service (DNS) resolution. In operation, the resolution resiliency application determines that an authoritative name server has begun recovering from a degraded state or receives a flush list update from the authoritative name server. In response, the resolution resiliency application performs operation(s) that modify a query rate and/or a cache. The query rate specifies a frequency associated with DNS queries transmitted to the first authoritative name server. The cache stores DNS record(s) received from the first authoritative name server. Finally, the resolution resiliency application generates a DNS response to a DNS query based on the modified query rate and/or the modified cache.

2. 发明授权

US10721117B2 Resilient domain name service (DNS) resolution when an authoritative name server is unavailable 有权
公开(公告)号：US10721117B2
公开(公告)日：2020-07-21
申请号：US15670747
申请日：2017-08-07
申请人： VERISIGN, INC.
发明人： Burton S. Kaliski, Jr. , Shumon Huque , Eric Osterweil , Frank Scalzo , Duane Wessels , Glen Wiley
IPC分类号： H04L12/24 , H04L29/12 , H04W24/04 , H04L29/14
摘要： A resolution resiliency application performs robust domain name system (DNS) resolution. In operation, the resolution resiliency application determines that an authoritative name server that is responsible for a domain name specified in a DNS query is unavailable. In response to determining that the authoritative name server is unavailable, the resolution resiliency application performs operation(s) that modify one or more DNS records stored in a cache based on one or more resiliency policies associated with the authoritative name server. The resolution resiliency application then generates a DNS response to the DNS query based on a DNS record stored in the modified cache. Notably, the disclosed techniques increase the likelihood of providing clients with DNS responses that accurately provide requested information.

3. 发明授权

US10530734B2 Balancing visibility in the domain name system 有权
公开(公告)号：US10530734B2
公开(公告)日：2020-01-07
申请号：US14627506
申请日：2015-02-20
申请人： Verisign, Inc.
发明人： Burton S. Kaliski, Jr. , Shumon Huque
IPC分类号： H04L29/12
摘要： Systems and methods for out-of-band communications in the domain name system (DNS) are disclosed. Embodiments include a system for negotiating DNS services in the DNS. The system includes an in-band communication channel connecting a first party and a second party, and one or more out-of-band communication channels connecting the first party and the second party. The first party performs messaging for the DNS services with the second party using the in-band communication channel. Further, the first party advertises terms of the DNS service offered by the second party using the one or more out-of-band communication channels.

4. 发明授权

US11082392B1 Balancing visibility in the domain name system 有权
公开(公告)号：US11082392B1
公开(公告)日：2021-08-03
申请号：US16669141
申请日：2019-10-30
申请人： VERISIGN, INC.
发明人： Burton S. Kaliski, Jr. , Shumon Huque
IPC分类号： H04L29/12 , H04L29/08
摘要： Systems and methods for out-of-band communications in the domain name system (DNS) are disclosed. Embodiments include a system for negotiating DNS services in the DNS. The system includes an in-band communication channel connecting a first party and a second party, and one or more out-of-band communication channels connecting the first party and the second party. The first party performs messaging for the DNS services with the second party using the in-band communication channel. Further, the first party advertises terms of the DNS service offered by the second party using the one or more out-of-band communication channels.

5. 发明授权

US11032127B2 Resilient domain name service (DNS) resolution when an authoritative name server is unavailable 有权
公开(公告)号：US11032127B2
公开(公告)日：2021-06-08
申请号：US15633655
申请日：2017-06-26
申请人： VERISIGN, INC.
发明人： Shumon Huque , Burton S. Kaliski, Jr. , Eric Osterweil , Frank Scalzo , Glen Wiley
IPC分类号： H04L12/24 , H04L29/12 , H04W24/04 , H04L29/14
摘要： In one embodiment, a resolution resiliency application performs robust domain name system (DNS) resolution. In operation, the resolution resiliency application determines that an authoritative name server that is responsible for a domain name specified in a DNS query is unavailable. In response to determining that the authoritative name server is unavailable, the resolution resiliency application performs operation(s) that modify one or more DNS records stored in a cache based on one or more resiliency policies associated with the authoritative name server. The resolution resiliency application then generates a DNS response to the DNS query based on a DNS record stored in the modified cache. Notably, unlike conventional techniques that may generate inaccurate DNS responses based on stale DNS records, the disclosed techniques increase the likelihood of providing clients with DNS responses that accurately provide requested information.

6. 发明申请

US20160173439A1 BALANCING VISIBILITY IN THE DOMAIN NAME SYSTEM 审中-公开
标题翻译：平衡域名系统中的可见性
公开(公告)号：US20160173439A1
公开(公告)日：2016-06-16
申请号：US14627506
申请日：2015-02-20
申请人： Verisign, Inc.
发明人： Burton S. Kaliski, JR. , Shumon Huque
IPC分类号： H04L29/12
摘要： Systems and methods for out-of-band communications in the domain name system (DNS) are disclosed. Embodiments include a system for negotiating DNS services in the DNS. The system includes an in-band communication channel connecting a first party and a second party, and one or more out-of-band communication channels connecting the first party and the second party. The first party performs messaging for the DNS services with the second party using the in-band communication channel. Further, the first party advertises terms of the DNS service offered by the second party using the one or more out-of-band communication channels.
摘要翻译：公开了域名系统（DNS）中的带外通信的系统和方法。实施例包括用于在DNS中协商DNS服务的系统。该系统包括连接第一方和第二方的带内通信信道以及连接第一方和第二方的一个或多个带外通信信道。第一方使用带内通信信道对第二方执行DNS服务的消息传递。此外，第一方使用一个或多个带外通信信道通告由第二方提供的DNS服务的条款。

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