Network security

In this lecture, we will begin our discussion of network security. There isn't a single great paper that describes the state of the Internet's security, so instead, please read the following material in preparation for lecture:

• Read Matthew Tanase's article IP Spoofing: An Introduction, published in 2003. The article gives a good overview of the threat posed by IP spoofing. If you are curious, you can take a look at RFC 6528 which describes how TCP tries to defend against the sequence number prediction attack mentioned in Tanase's article.
• Read about distributed denial-of-service attacks. If you are curious, you can dive into more details about one specific kind of attack, SYN flooding, and a defense technique for it, called SYN cookies, in RFC 4987.
• Read about the Mutually Agreed Norms for Routing Security (MANRS), an initiative to improve the state of routing security on the Internet.