DNS Queries

DOS Attact Message or Just a Simple Query"?

I have checked firewall alert message everyday from my organization firewall equipment, and it returns an alert message "anomaly: udp_src_session, 1001 > threshold 1000, repeated 214 times" Starting from 172.10.2.45:51158 to 210.181.1.24:53. I wanna know whether it's really infected and...

what is dns tell the steps to configure and creating reverse lookup zone

describe the domain name service and how we can configure it , how we can creat a reverse lookup zone,forword lookup zone and stub zone,how can we moniter dns & what are the dns qurey