Seeking Help from Experienced Friends Regarding Databases!

[Qaideth]

Hello friends, Yesterday I opened a topic related to mysql and mcf, but didn't receive any responses from anyone, so I posted it in the c# section thinking that might be the reason. Now I will try to explain the problem I am experiencing in simple terms, and I kindly request your help in simple language. I own a mysql server, and those who know the username and password can access this server, they need to be granted permission in advance. So far, there is no problem, everything is as it should be. But when I need to make my program usable to the end client, the user should not need to know the server password or have permissions logically. However, if an unauthorized user tries to register on the system or tries to access the server when they have not been granted permission, naturally the user cannot access because their IP does not have permission. As a solution to this, I researched web services and found a solution, although there may be other solutions I am not sure. I watched videos related to web services / wcf and applied them, I can establish a connection successfully but still face the same issue, it asks for permission. What I want is this: When registering on a website or performing operations such as adding, deleting, updating in areas where we are allowed without knowing the background processes, I want to do the same thing in my own program. Thanks in advance to those who will help.