Highly available DNS resolver and method for use of the same

Details Highly available DNS resolver and method for use of the same Highly available DNS resolver and method for use of the same

2002-09-20

2008-09-16

Chang, Jungwon (Department: 2154)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data addressing

C709S226000, C707S793000

Reexamination Certificate

active

07426576

ABSTRACT:
The present invention relates to an enhanced DNS resolver architecture configured to operate in high availability environments, such as the Internet. Specifically, the DNS resolver code of the present invention may be implemented by a storage operating system in a filer. The resolver code modifies a conventional resolver algorithm so as to reduce the time necessary to map IP addresses to alphanumeric domain names and vice versa. Advantageously, the enhanced resolver code keeps track of non-responsive or “dead” DNS servers as well as non-resolvable or “bad” domain names and IP addresses.

REFERENCES:
patent: 5163131 (1992-11-01), Row et al.
patent: 5355453 (1994-10-01), Row et al.
patent: 5485579 (1996-01-01), Hitz et al.
patent: 5802366 (1998-09-01), Row et al.
patent: 5819292 (1998-10-01), Hitz et al.
patent: 5931918 (1999-08-01), Row et al.
patent: 5941972 (1999-08-01), Hoese et al.
patent: 5948110 (1999-09-01), Hitz et al.
patent: 5950225 (1999-09-01), Kleiman
patent: 5963962 (1999-10-01), Hitz et al.
patent: 6038570 (2000-03-01), Hitz et al.
patent: 6065037 (2000-05-01), Hitz et al.
patent: 6138126 (2000-10-01), Hitz et al.
patent: 6289356 (2001-09-01), Hitz et al.
patent: 6425035 (2002-07-01), Hoese et al.
patent: 6446133 (2002-09-01), Tan et al.
patent: 6647427 (2003-11-01), Watanabe
patent: 6826611 (2004-11-01), Arndt
patent: 6834302 (2004-12-01), Harvell
patent: 6871347 (2005-03-01), Hay
patent: 7000016 (2006-02-01), Vanderbeck et al.
patent: 2001/0023447 (2001-09-01), West et al.
patent: 2002/0002636 (2002-01-01), Vange et al.
patent: 2002/0073233 (2002-06-01), Gross et al.
patent: 2002/0145992 (2002-10-01), Holt
patent: 2002/0184390 (2002-12-01), Alkhatib
patent: 2002/0188757 (2002-12-01), Yoon et al.
patent: 2003/0172183 (2003-09-01), Anderson et al.
patent: 2004/0024872 (2004-02-01), Kelley et al.
David Hitz et al. TR3002 File System Design for a NFS File Server Appliance published by Network Appliance, Inc.
Common Internet File System (CIFS) Version: CIFS-Spec 0.9, Storage Networking Industry Association (SNIA), Draft SNIA CIFS Documentation Work Group Work-in-Progress, Revision Date: Mar. 26, 2001.
Fielding et al. (1999) Request for Comments (RFC) 2616, HTTP/1.1.

Affiliated with

Also associated with

Rating

Highly available DNS resolver and method for use of the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Highly available DNS resolver and method for use of the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly available DNS resolver and method for use of the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3977571