4. Discovery

How do we find people and know how to connect to them?

• Bootstrapping initial connections

• Gossiping

• Hole punching

5. Scraps

https://xmpp.org/extensions/xep-0030.html

There are three kinds of information that need to be discovered about an entity:

• its basic identity (type and/or category)

• the features it offers and protocols it supports

• any additional items associated with the entity, whether or not they are addressable as JIDs

All three MUST be supported, but the first two kinds of information relate to the entity itself whereas the third kind of information relates to items associated with the entity itself; therefore two different query types are needed.