[Unbound-users] Does/can unbound use RTT values to prioritise DNS servers
djbloc at gmail.com
Sat Nov 27 19:21:08 UTC 2010
I've a running installation of Unbound in the United Kingdom and it
seems to work well. However, with an empty cache it is notable that
some queries take longer than others. Using dig with the +trace option
it can be shown that it can take up to a second to respond.
Using ping the average response of the root servers are:
A.ROOT-SERVERS.NET - 106ms
B.ROOT-SERVERS.NET - 152ms
C.ROOT-SERVERS.NET - 94ms
D.ROOT-SERVERS.NET - 80ms
E.ROOT-SERVERS.NET - ??
F.ROOT-SERVERS.NET - 147ms
G.ROOT-SERVERS.NET - ??
H.ROOT-SERVERS.NET - ??
I.ROOT-SERVERS.NET - 35ms
J.ROOT-SERVERS.NET - 22ms
K.ROOT-SERVERS.NET - 1ms
L.ROOT-SERVERS.NET - 57ms
M.ROOT-SERVERS.NET - 247ms
Does or can unbound be configured to prioritise recursive queries
using the lowest RTT values, maybe from the Infra cache? In this
instance 'K' is preferable to 'M' for example.
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