Principal Software Development Engineer at GoDaddy
Joined on September 6, 2019
Total Post Views: 14,878
About |
Brian Dickson is a member of the DNS team at GoDaddy. This team is responsible for all internal and exteral DNS, including our DNS product (hosted authoritative DNS services), our corporate DNS domains (authoritative), and internal DNS resolution.
Except where otherwise noted, all postings by Brian Dickson on CircleID are licensed under a Creative Commons License.
The design of DNS included an important architectural decision: the transport protocol used is user datagram protocol (UDP). Unlike transmission control protocol (TCP), UDP is connectionless, stateless, and lightweight. In contrast, TCP needs to establish connections between end systems and guarantees packet ordering and delivery. DNS handles the packet delivery reliability aspect internally and avoids all of the overhead of TCP. There are two problems this introduces. more