Ask the Red Hat server about Automatic Remote Desktop transfer.

Ask the Red Hat server about Automatic Remote Desktop transfer. -- Linux general technology-Linux technology and application information. For details, refer to the following section. There is a red hat 4.4 server, which is placed in the company's intranet. Once I start X-win, it automatically connects to the server and does not need a password. Check the service, configuration file, and Startup File with SSH logon. No problems found. It feels strange.
If it is set to automatically connect to the client by default, Where is it located? How can I remove this automatic connection function? After all, this is too exaggerated. I hope that my brothers and sisters who are familiar with such applications will not hesitate to enlighten me.