Hackers have noticed that many
DNS servers on the internet have accepted requests for external recursive queries, that the administrators did not pay attention to them. Then, they created fraudulent queries for these servers and attacked the servers and the target DNS server with recursive queries.
DOS attacks increased with the growth of packet sizes. We can set DNS server to not respond to these queries as follows.
1.Right-click on the DNS Server name and enter the
Figure 1: DNS manager menu
2. Then select the “
Advanced” tab and check the box to “
Disable recursion (also disables forwarders)”
Figure 2: Advanced Tab of Properties
I hope it has been a useful article.