what is DHT?
do we have to have it connect to DL??
You are, believe it or not, far from the first person to ask that question.
There are several similar questions, that people ask very often. For that reason, there are lists of these Frequently Asked Questions, or FAQ’s, which many forums including this one, post in a prominent place. People attempting to make even the most cursory search will be able to find them, before asking that same question again and yet again.
This forum, for example has pinned or “sticky” topics, being those first few topics at the top of the page, which contain the answers to this and other questions which arise often.