[Unbound-users] Query source IP/Port persistance and unbound vs djbdns dnscache

Paul Niemi paul.niemi at tbaytel.com
Thu Jun 12 13:03:33 UTC 2014


I ran the dig command, as suggested, for a period of time (about 1.5
hours).  Unbound continued to respond without issue, so it looks like we
are ok.  I will do a little more testing, but it is looking like we can
remove the source NAT.

Thank you for the suggestion,


On Wed, Jun 11, 2014 at 2:02 PM, Jaap Akkerhuis <jaap at nlnetlabs.nl> wrote:

>     Will unbound see this constant source IP/port as unusual, and block
> further
>     DNS queries in a similar manner after a period of time?  In other
> words,
>     will we require the the source NAT with unbound, until we can fix the
> buggy
>     gateways?
> As far as I know it won't do block on this. That is easely tested
>  to run something like:
>         while true; do dig -b +short example.com; done
> on a (test server) which runs unbound as a resolver.
>         jaap

*Paul Niemi, B.Sc., B.Eng.* | Networks and Servers Technician
*Tbaytel *| 241 S. Vickers Street | Thunder Bay, Ontario | P7E 1J5
Tel: (807) 625-3043


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