Skip to Content.
Sympa Menu

discuss - [opennic-discuss] Annoying DoS

discuss AT

Subject: Discuss mailing list

List archive

[opennic-discuss] Annoying DoS

Chronological Thread 
  • From: Martin C <martin AT>
  • To: OpenNIC discussion <discuss AT>
  • Subject: [opennic-discuss] Annoying DoS
  • Date: Thu, 18 Oct 2012 06:51:52 +1000
  • Openpgp: url=

I know it was mentioned before on this list, but I can't remember if any
IP addresses were mentioned. Anyway, I was watching the logs the other
day and noticed one IP doing a lot of lookups for the same domain over
and over again (

I thought nothing of it until I received a notice from the VPS supplier
that I had used over 80% of my traffic quota. I have never received that
message before so I investigated into what could be using so much
traffic. Sure enough, there was that IP address again, doing several
10's of lookups a second at least. was doing the most, followed by, and then

I hope I haven't accidentally blocked the IP of an OpenNIC T1 testing
server, if I have, let me know. Otherwise, this is a heads up about a
possible DoS attempt which as it turned out, was highly annoying.

Martin C.

Attachment: signature.asc
Description: OpenPGP digital signature

Archive powered by MHonArc 2.6.19.

Top of Page