How to properly close port 445 in AD?

Question

Active Directory

Good time everyone! I have such a question. I have AD on Windows server 2019, I had port 445 open and there were shared file sharing folders ..... And so I decided to increase the security of the server and closed 445 and now I use sftp to exchange files ..... all it seems like ok, but there was a problem how group policies will now be updated and when I enter a new computer into the domain, I get an error like "The network path was not found." How to be? Can someone thread faced?

Answer 1

No 445 port is required for correct DC operation.

Answer 2

Do not keep a file cleaner on the AD domain controller