Maintained by: NLnet Labs

[Unbound-users] How to create second Unbound Resolver in Windows

Bry8 Star
Sun Feb 24 10:19:33 CET 2013


Hi,
( Question: How to create a tiny second instance of Unbound DNSSEC
Validating DNS Resolver in Windows using a Private-class-C
IP-Address other than the host's IP-address ? ).

How can i configure a second Unbound (on Windows XP and 7 computer)
to listen DNS queries (for example) for 192.168.0.53 ip address on
port 53 , by running it from inside a windows host computer which
itself has (for example) 192.168.0.10 ip-address ?

There is no device/computer running with ip address 192.168.0.53
inside that 192.168.0.0 local network.
Gateway/router is (for example) 192.168.0.1
One Unbound DNS Resolver is already running as a default DNS
resolver service & listening on port 53 of 127.0.0.1 inside the
windows computer which has 192.168.0.10 ip address specified as
fixed ip in the Network Adapter. And router is also configured to
assign this windows computer ip address 192.168.0.10 based on its
network adapter's MAC (Physical Address).

My one of the main target is to specify this 192.168.0.53 ip address
inside the "DNSSEC Validator" addon, and "Extended DNSSEC Validator"
addon/extension of Mozilla Firefox (FirefoxPortable).

And one of the another reason is to use "dig" commands (obtained via
cygwin) like these to query DNSSEC based queries:
dig @192.168.0.53 mozilla.org. ANY +dnssec
dig @192.168.0.53 unbound.net. ANY +dnssec

And one of the main reason is to use tcp upstream feature of
Unbound, and send dns queries via ssh or via openvpn or via
socks5-proxy tunnel, to the destination public dns servers, from the
tunnel-end computer.

How many ways this can be done ? which is simpler & easier.

-- Bright Star.

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