Denying access to sql server from remote machine

[JavidRaj]

Hi

Here is my problem.

I installed sql server destop engine on Server "A" and Server "B". Both are installed as an Windows NT security mode(windows authentication).

If I open the Sql Server service manager in Server "B" and select the server "A" and stop the service, it stop that sql server in Server "A". (both server has same login name and password)

I want to deny this action. I want to protect the sql server by accessing from any remote machine.
How to do this ?

Thanks in advance

Javid