Re: [Pdns-users] Rate-Limit for NXDOMAIN

2019-05-04 Thread Klaus Darilion
Hi Brian! Am 30.04.2019 um 15:37 schrieb Brian Candler: On 29/04/2019 22:14, Klaus Darilion wrote: Can you give an example how those dynblockrules can be used to filter above "attack"? The main problem with rate-limiting NXDOMAIN is, that you need to ask the authoritative to get a response and

Re: [Pdns-users] Rate-Limit for NXDOMAIN

2019-05-04 Thread Klaus Darilion
Hi Bart! Am 30.04.2019 um 16:31 schrieb power...@bart.bim.be: In the normal case, suppressing responses may be a good thing to do, if the actual problem is that the DNS responses are part of a DoS attack (i.e. the DNS queries came in with spoofed source addresses). The responses cause your I