I was wondering if anyone noticed an odd external DNS problem happening yesterday
Yes we had some issues as well.
We kept getting the following messages:
named[4498]: client 127.0.0.1#42127: no more recursive clients: quota reached
(We have a limit of 1000 and an average of 25)
And we could not get to some of the root servers, ie: a.ROOT-SERVERS.NET
So I am assuming there was a DOS attack somewhere which affected DNS traffic.
Assumption: The name server could not get to some root servers, the queries
kept pilling up and we hit the quota.
It looks like it was an issue on the
- 14th ( 422333 quota reached)
- 17th ( 170472 quota reached)
- 18th ( 547309 quota reached)
To put it into perspective here are the numbers for the previous 5 weeks:
4228
28
16
856
801
--
------------------------------------------------------------------------
Jean-Francois Pirus