To manage multiple Windows Servers from a single Windows Server. In this example, we will add Server2 to Server1. This assumes that Server1 is using the full GUI interface.

1. On Server1, use the ipconfig /all command to determine the host name and primary DNS suffix of the computer.

Note: If you need to change the host name or primary DNS suffix, follow the directions in the article on how to set the hostname and primary DNS suffix name in Windows Server 2012.

2. Type this command in PowerShell to view the list of computers that are Trusted Hosts: Get-Item wsman:\localhost\Client\TrustedHosts. There are no listings under Value, meaning thare are no Trusted Hosts.

PS C:\Users\Administrator> Get-Item wsman:\localhost\Client\TrustedHostsWSManConfig: Microsoft.WSMan.Management\WSMan::localhost\ClientType           Name                  SourceOfValue     Value----           ----                  ----              ----System.String  TrustedHosts

3. Type this command in PowerShell to add Server1 as a Trusted Host: Set-Item wsman:\localhost\Client\TrustedHosts <host name>.<dns suffix name> -Concatenate and press enter (example: Set-Item wsman:\localhost\Client\TrustedHosts Server1.Server2012.local -Concatenate)
4. Type this command in PowerShell to add Server2 as a Trusted Host: Set-Item wsman:\localhost\Client\TrustedHosts <host name>.<dns suffix name> -Concatenate and press enter (example: Set-Item wsman:\localhost\Client\TrustedHosts Server2.Server2012.local -Concatenate)

Note: -Concatenate appends Trusted Hosts to the file. If you do not use -Concatenate, the file is overwritten.

5. Ensure both Server1 and Server2 are listed as Trusted Hosts:

PS C:\Users\Administrator> Get-Item wsman:\localhost\Client\TrustedHostsWSManConfig: Microsoft.WSMan.Management\WSMan::localhost\ClientType           Name                  SourceOfValue     Value----           ----                  ----              ----System.String  TrustedHosts                            Server1.Server2012.local,Server2.Server2012.local

6. In the top menu of Server Manager, select Manage > Add Servers
7. In the Add Servers dialog box, select DNS
8. In Search, type the name of the server you want to add (Server2 in this example). The IP address of the server being added should be displayed.
9. Double-click on the server to add the server.
10. Select OK to close the Add Servers dialog box
11. In Server Manager, select All Servers. Both Server1 and Server2 should be displayed.