One issue is the dns caching. We run into a problem that when we make a DNS change, it can take up to 24 hours for that change to promulgate out onto the Internet because may systems cache the dns requests. So a user may not be able to get to you new ip address for that dns entry because it may be cached already on their firewall.
Scott Morris Senior Network Engineer ORAU / ORISE 865-576-4672 'B' Schedule -----Original Message----- From: Dave Morrow [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 26, 2002 10:04 AM To: WhatsUp_Forum ([EMAIL PROTECTED]) Subject: [WhatsUp Forum] OFF TOPIC : Dynamically Change DNS Hi all. I just thought I would pick some brains out there....if you all don't mind that is. I have a situation where, if a server is down, I want to dynamically change a DNS entry to redirect traffic to a DRP type site. I have seen hardware based products from F5, Cisco that do Layer7 switching and even one that is simply a dynamic DNS (3-DNS) and a few commercial software DNS servers that do this (IntelliDNS)......but these are all very expensive options.....I am looking for a freeware/shareware/homegrown solution...... Anyone out there have experience in this at all? David Morrow Network Administrator Autodata Solutions Company Ph: (519) 951-6067 Fax: (519) 451-6615 mailto: [EMAIL PROTECTED] "Poor planning on your part does not necessitate an emergency on my part." This message has originated from Autodata Solutions Company. The attached material is the Confidential and Proprietary Information of Autodata Solutions Company. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please delete this message and notify the Autodata system administrator at [EMAIL PROTECTED] Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/whatsup_forum%40list.ipswitch.com/
