Re: Bind stats - denied queries?

2020-12-01 Thread Karl Pielorz
--On 1 December 2020 at 10:30:21 -0600 Chuck Aurora wrote: As for the wrong question - I don't get why it's 'wrong' to ask if there's a better way of getting the total number of "denied" entries Sorry, I skimmed the post quickly and thought you simply were asking about parsing the stats

Re: Bind stats - denied queries?

2020-12-01 Thread Chuck Aurora
On 2020-12-01 10:25, Karl Pielorz wrote: --On 1 December 2020 at 10:14:50 -0600 Chuck Aurora wrote: On 2020-12-01 04:43, Karl Pielorz wrote: So, as the original person that posted the question :) My question still stands (I'd never presumed this was valid traffic) - what I'm trying to

Re: Bind stats - denied queries?

2020-12-01 Thread Karl Pielorz
--On 1 December 2020 at 10:14:50 -0600 Chuck Aurora wrote: On 2020-12-01 04:43, Karl Pielorz wrote: So, as the original person that posted the question :) My question still stands (I'd never presumed this was valid traffic) - what I'm trying to find out if buried within the trove of stats

Re: RRL outcome on legitimate traffic...

2020-12-01 Thread Lyle Giese
Probably best to ask Paul Vixie for confirmation. I had implemented RRL when it was still an addon and that was what was documented back then. On 12/1/20 10:15 AM, Karl Pielorz wrote: --On 1 December 2020 at 08:24:50 -0600 Lyle Giese wrote: You need to look at the reply named sends

Re: RRL outcome on legitimate traffic...

2020-12-01 Thread Karl Pielorz
--On 1 December 2020 at 08:24:50 -0600 Lyle Giese wrote: You need to look at the reply named sends when it trips and starts limiting UDP traffic source from a given IP address.  It tells the requestor to try again using TCP instead of UDP. So if the requestor is a legit dns server, it

Re: Bind stats - denied queries?

2020-12-01 Thread Chuck Aurora
On 2020-12-01 04:43, Karl Pielorz wrote: So, as the original person that posted the question :) My question still stands (I'd never presumed this was valid traffic) - what I'm trying to find out if buried within the trove of stats produced by 'rndc stats' is there any counter, that counts: "

Re: RRL outcome on legitimate traffic...

2020-12-01 Thread Lyle Giese
You need to look at the reply named sends when it trips and starts limiting UDP traffic source from a given IP address.  It tells the requestor to try again using TCP instead of UDP. So if the requestor is a legit dns server, it will retry using TCP and still get a valid answer. Named does

RRL outcome on legitimate traffic...

2020-12-01 Thread Karl Pielorz
Hi all, So there's been quite a thread - that originally started as "Bind stats - denied queries" - and morphed into a whole discussion on spoofed UDP, logging, RRL etc. In my original post - I never said the original traffic was likely legitimate in anyway (just so we're clear - I didn't

Re: Bind stats - denied queries?

2020-12-01 Thread Karl Pielorz
--On 30 November 2020 at 08:53:27 -0600 Lyle Giese wrote: Be careful 'rejecting' these outright.  These queries are UDP traffic(not TCP) and the source address is easily forged.  RRL is the correct way to limit these. So, as the original person that posted the question :) My question

RE: Bind stats - denied queries?

2020-12-01 Thread Marc Roos
Every entry is relevant, because that is how you configured it to be. Do you even know that this limit is configured in your config at 'rate-limit {};'? It logs everything that exceeds this limit. (<- notice the . period) So you can dump queries from a host 192.168.a.b, exceeding this limit