Using dynamic DNS and TTL as a poor man's redundancy

[Charles Cala]

--- Rick Kunkel <NOSPAM-kunkel at w-link.net> wrote:

> He doesn't want these servers hit during under normal
> operating
> circumstances.  They're for failover only.

> In essence, we'd be
> running a dynamic DNS server with a very low TTL 

  reasons why dns gslb has issues
http://www.simplefailover.com/outbox/dns-caching.pdf
http://www.tenereillo.com/GSLBPageOfShameII.htm
http://tenereillo.com/BrowserDNSCache.htm

basic overview of a "routed" fix.
http://www.quickeagle.com/pdf/infocenter/Safety_in_Numbers_WP_Final.pdf
each has its own issues, problems, and solutions.


ya may want to look at http://www.akamai.com/index_noflash.html
but they have "burps" as well.
http://www.theregister.co.uk/2004/06/15/akamai_goes_postal/




Curse the dark, or light a match. You decide, it's your dark.
Valdis.Kletnieks in NANOG