From the course: ISC2 Systems Security Certified Practitioner (SSCP) (2024) Cert Prep

Unlock this course with a free trial

Join today to access over 24,900 courses taught by industry experts.

DNS attacks

DNS attacks

From the course: ISC2 Systems Security Certified Practitioner (SSCP) (2024) Cert Prep

Start my 1-month free trial Buy for my team

DNS attacks

“

- [Instructor] Earlier in this course, you learned about the important role that the domain name system, DNS, plays on networks. As a reminder, DNS translates the common names that we use on a regular basis, such as linkedin.com or nd.edu, to the IP addresses that computers use such as 108.174.10.10 or 34.193.237.201. DNS uses a hierarchical look up system where the initial request goes to a server on the client's network. If that server doesn't already know the answer, it then asks a series of other servers until it finds the one with the correct answer. For example, when looking up www.wikipedia.org, an organization's DNS server first asks the root name server. Now, if the root name server doesn't know the answer, it tells the requester what name server is responsible for the.org top level domain. The client then asks the.org server, who also doesn't know the answer, but that server tells the requester what name…

Contents