Re: RFC 6471 and "listing the Internet" as a punishment
Brendan Hide <[email protected]>
| Newsgroups | gmane.ietf.asrg |
|---|---|
| Message-ID | <[email protected]> |
On 01/26/12 01:26, Paul Smith wrote: > On 25/01/2012 22:57, SM wrote: >> >> >> Are there any examples of DNS "caching services" set up to reduce >> network traffic and why it is being done? > > Hang on - isn't that the whole point of DNS caching? If people didn't > care about network traffic, no one would cache anything, they'd just > resolve the addresses every time. Apart from increased network > traffic, resolving every time would be much better, as there'd be no > stale data. > > So, pretty much every caching DNS server is there to reduce network > traffic. Isn't it? Pretty much every ISP has caching DNS servers *partly* for this exact reason, yes. The other reason is speed. Cached entries result in less latency when the authoritative DNS server is on the other side of the world. :) -- __________ Brendan Hide Mobile: +27 83 448 3867 Mobile: [email protected] (plain text only please) Web Africa - Internet Business Solutions http://www.webafrica.co.za/?AFF1E97