Nameserver receives query that it can resolve immediately from resolver

[chelseakomlo]

When a nameserver receives a query that it has the information for in its cache, it can find that in the cache

[chelseakomlo]

• Is this request over TCP/UDP?
• What is the format the request is in?

[chelseakomlo]

TCP specifications: https://tools.ietf.org/html/rfc5966

[natalieesk]

TO DO:

• Set up TCP request handler
• Set up UDP request handler
• Set up nameserver db (Creating master files for zones)
• Check request against cache
• Discover which information we should store in cache

[chelseakomlo]

Hey, we don't have to do both TCP and UDP.

[yakiradixon]

For writing the code for this issue? Perhaps not. We could just support UDP for now.

[yakiradixon]

The RFC we've linked to here states that TCP is used for zone transfers and messages that exceed 512 bytes. It also states that supporting TCP is part of fully implementing the core DNS protocol.

[olabini]

I would vote for doing both. None of the team have lots of experience with low level networking, and learning the difference between TCP and UDP and how that works is a good thing.