flâneur

DNS | Computer Security

textbook.cs161.org · 3,149 words · saved by 1 readers

The Internet is commonly indexed in two different ways. Humans refer to websites using human-readable names such as google.com and eecs.berkeley.edu, while computers refer to websites using IP addresses such as 172.217.4.174 and 23.195.69.108. DNS, or the Domain Name System, is the protocol that translates between the two. It would be great if there was single server that stored a mapping from every domain to every IP address that everyone could query, but unfortunately, there is no server big enough to store the IP address of every domain on the Internet and fast enough to handle the volume of DNS requests generated by the entire world. Instead, DNS uses a collection of many name servers, which are servers dedicated to replying to DNS requests. Each name server is responsible for a specific zone of domains, so that no single server needs to store every domain on the Internet. For example, a name server responsible for the .com zone only needs to answer queries for domains that end in

DNS | Computer Security Skip to main content Menu Expand (external link) Document Search Copy Copied Computer Security 32. DNS The Internet is commonly indexed in two different ways. Humans refer to websites using human-readable names such as google.com and eecs.berkeley.edu , while computers refer to websites using IP addresses such as 172.217.4.174 and 23.195.69.108 . DNS , or the Domain Name System , is the protocol that translates between the two. 32.1. Name servers It would be great if there was single server that stored a mapping from every domain to every IP address that everyone could

saved by

related reading