I was thinking that through one Windows Admin Center installation I'll be able to manage several remote Win servers. However, the add server dialog seems to be able to find only local/LAN servers. Is this somehow possible or do I need a separate WAC installation on each server thus each will have its own address?
Windows Admin Center – Connecting to a Remote Server
sysadminwindowswindows-admin-centerwinrm
Related Solutions
I agree with KCotreau but I can't comment yet with being a noob so had to write it here instead. The shared folders MMC is the old one that was in 2003 an should allow you to lanuch it after you have created it first. when creating it you will be prompted for admin rights but go through the settings and turn off the need for admin rights and allow users to select the servers. this should work. If it doesnt let us know and I know of an alternative but it requires a bit more work.
Best Answer
Of course you can do that! Please check the step-by-step guide below:
https://docs.microsoft.com/en-us/windows-server/manage/windows-admin-center/use/get-started
Make sure you have WinRM & PowerShell remoting enabled, these are disabled by default in Windows 10 and to enable them you type "Enable-PSRemoting" in the PowerShell console with admin privileges. You also need to allow TCP connections from outside of your subnet. Type "Set-NetFirewallRule -Name WINRM-HTTP-In-TCP -RemoteAddress Any" from the same PowerShell console with admin privileges.