Minecraft Worldguard?

I have the problem that I have marked a huge world and nothing can be mined there except on a small part. How do I do that only the small part can be mined?

In your large region, create a small region at the point where mining is to take place (/ rg define region name) and then only allow mining there

(/ rg flag region name build true)

That will not do

The procedure was wrong. The world is always global and if you don't want to have building rights, you can set the flag build deny. Nothing has to be marked for this.

Then mark the area for a sub-region, assign names and set the flag build allow.

Then everything works.

What is the name of this global world

As your world is called. Example: your world is world, then the flag / rg flag is __global__ build deny

The global refers to the world world.

FOLD

Congratulation