What happens If I close below Ports on Windows Server 2019 & what services will get affected

[Seema_Kanwa655]

Dear Community,

Can I block below Network  Ports on Windows Server 2019:

Port 445 - File and printer sharing service.

Port 5985 - Windows Remote Management (WinRM) service.

Port 21 - FTP service.

Port 69 - TFTP service.

Port 161 and 162 - SNMP service.

What happens If I close below Ports on Windows Server 2019 & what services will get affected?

[#2]

You can search them out here.    

 Service overview and network port requirements - Windows Server | Microsoft Learn

[#3]

@Seema_Kanwa655 just checking if there's any progress or updates? please don't forget to mark helpful replies?  

[#4]

Dave Patrick,
I had already gone through this Microsoft Article but I was not sure about the Impact & so I created this Post on Microsoft Forum. This detailed document doesnot pinpoint the impact that I am talking about. It tells me the Individual Impact only. But my concern is like what If there are dependencies interms of services & what happnes If I close/disable mentioned ports?

[#5]

 my concern is like what If there are dependencies interms of services & what happnes If I close/disable mentioned ports?

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We haven't a clue with what you've told us. It depends on what roles and or processes run on your server.