Re: TTL From Parent or Child Zone?
Matthew Dempsky <[email protected]>
| Newsgroups | gmane.network.djbdns |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Jun 1, 2009 at 10:23 AM, Sabahattin Gucukoglu <[email protected]> wrote: > That's fine, but what happens when there's never a need to ask authoritative > servers? There's two ways to solve this problem. The first is server administrators follow section 4.2.1 of RFC 1034, which says parent servers should always serve the exact same records that child servers do. If you follow this rule, there's never a need to contact the child servers. The alternative way is to make dnscache spend extra CPU cycles and extra network resources and add extra load on DNS infrastructure. dnscache uses the former solution.