refresh / expire

[Mark_Andrews at isc.org]

> 
> When we have a "refresh" rate, what is the purpose for an "expire" rate? 
> Are the dns servers around the world not required to respect the refresh
> rate??
> 
> Further, do refresh /expire mean:
>         "lookup the _domain's_ own dns servers after this interval"
> or do they mean:
>         "lookup the root .com/.org/.net/... servers after this
> interval"??
> 
> Thanks for your help.
> -- 
> Reza Roboubi
> www.linisoft.com
> 

	 See RFC 1035.
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org