Re: bind qname minimization thoughts

2019-05-28 Thread Tony Finch
Daniel Stirnimann wrote: > > I would like BIND to also more gracefully handle qmin errors. This could > mean changing the to the query type A (See attached patch for BIND > 9.14.2) or disabling qmin on errors. I tend to think that making A queries instead of NS is the best way to reduce the compl

Re: bind qname minimization thoughts

2019-05-24 Thread Daniel Stirnimann
Hi On 24.05.19 12:41, Witold Krecicki wrote: > Could you try the attached patch (instead of the one you provided) and > see what happens? It stops trying to do qname minimization earlier if it > sees any failures in resolution (e.g. lame servers, as with the domains > you provided), it should work

Re: bind qname minimization thoughts

2019-05-24 Thread Witold Krecicki
Hi Yes, that's an incorrect behaviour - relaxed mode should work in all cases where regular resolution works (and can't be broken with external queries - but if it can then that's a hopeless case...). Could you try the attached patch (instead of the one you provided) and see what happens? It stops

bind qname minimization thoughts

2019-05-23 Thread Daniel Stirnimann
Dear all, We run BIND 9.14.2 on our resolver. The introduction of DNS query minimization (qmin) has so far caused a huge increase in customer reports about domain names which cannot be resolved. In comparison to other open source DNS resolvers which support query minimization, BIND seems to be th