If we zoom in at those AAAA records requests we see the following, here is the request: But the weirdest thing is of course the requests with the double domainname extensions. So what are we seeing here, there are a bunch of AAAA requests to the DNS server and only one A record request. Tcpdump: verbose output suppressed, use -v or -vv for full protocol decode I started with just firing up a tcpdump on one of the bonded client interfaces on a random compute ~]# tcpdump -i bondeth0 -s 0 port 53 ![]() We like our DNS admins so we had a look into these request and what was causing them. Recently one of my customers got a complaint from their DNS administrators, our Exadata’s are doing 40.000 DNS requests per minute.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |