Invention Grant
- Patent Title: Safe and secure access to dynamic domain name systems
- Patent Title (中): 安全可靠地访问动态域名系统
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Application No.: US14176265Application Date: 2014-02-10
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Publication No.: US09258293B1Publication Date: 2016-02-09
- Inventor: William E. Sobel
- Applicant: Symantec Corporation
- Applicant Address: US CA Mountain View
- Assignee: Symantec Corporation
- Current Assignee: Symantec Corporation
- Current Assignee Address: US CA Mountain View
- Agency: Campbell Stephenson LLP
- Main IPC: H04L29/06
- IPC: H04L29/06 ; G06F15/16

Abstract:
A method and apparatus for safe and secure access to dynamic domain name systems. In one embodiment a method comprises transmitting a DNS query to a dynamic DNS server. The DNS query comprises a domain name. A DNS answer is received from the dynamic DNS server in response to transmitting the DNS query. The DNS answer comprises an IP address. A request is transmitted to a host at the IP address in response to receiving the DNS answer. A digital certificate is received in response to transmitting the request. The received digital certificate is then compared with each of a plurality of digital certificates stored in memory. The IP address is transmitted to a client computer system if the received digital certificate compares equally with one of the plurality of digital certificates.
Information query