I have a small code utilizing a hash table. Now I want to convert it, basically, to a distributed hash table. Hoever, I can not find out how you actually code one or what changes you make to an existing hash table...???
Can anyone please help me, please? I can not find anything useful.

A local hash table and a DHT are fundamentally different; it is a non-trivial process to convert one to another. Perhaps you could explain why there is a need to move to a distributed design.

Because I need to practice it. I have no idea how to do this, and I can't even find any useful resources online.
Specifically chord lookup for the server.