network admin, ip addresses for webserver

[Jacob Mansfield]

On 27 Oct 2014, at 9:14PM, Niles Rogoff wrote:
> But the DNS lookup is for an internal hostname, it's not like you're looking up google.com, you're looking up new-host-6.local, which takes significantly less time because the router's internal DNS server already has it, it doesn't have to forward the lookup. It does add some time, but not probably 200ms. However, this latency is for each packet, not just the start of a connection, so the faster the forward the better

200ms /is/ for a local hostname (from BIND9 on Debian Wheezy)
Routers do not keep track of TCP streams, as such the lookup would have to be done for every packet in the connection.

Kind Regards,
Jacob Mansfield
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