[vox-tech] Fwd: Very slow off net
Bill Broadley
bill at broadley.org
Wed Oct 28 22:36:08 PDT 2009
Rick Moen wrote:
> By the way, IMO, you really should consider running and using a local
> recursive DNS nameserver.
I'd suggest adding caching in there somewhere, probably assumed.
> Doing so improve performance a great deal
> over using your "router on your home network", which almost certainly is
> merely a forwarder.
Agreed. Large ISPs (like pacbell) often have overloaded DNS, not to mention
the DNS is often on the wrong end of a busy network.
I suggest unbound.
> It'll also improve performance over using OpenDNS,
Sort of. For cache hits, yes. For cache misses, not to much. OpenDNS tries
to keep a rather large fraction of the zones caches. So just when things are
the worst (say a site is so busy it's having a hard time keeping up with dns
requests) opendns often will quickly give you the dns record you need.
> along with not giving the operators of that service detailed
> information about your Internet activity
Sure, so only your ISP instead of opendns and your ISP knowing everywhere you
visit.
, _and_ (unlike OpenDNS) it
> would actually implement DNS technical standards correctly (i.e.,
> correctly answering "NXDOMAIN" when that's the truth).
NXDOMAIN does bug me, I believe that optional if you login/create an account.
Oh, almost forgot. I'd recommend unbound as a local caching recursive server.
It's DNSSEC and DLV aware, seems to be rather well written for a specific
purpose. Lean, mean, easy to configure, and more secure than many defaults.
Apt-get install unbound if you are on ubuntu.
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