What must be done to use PowerShell for remote installation of a feature on a server?

To use PowerShell for remote installation of a feature on a server, adding the remote server to the TrustedHosts file is essential for establishing a secure and trusted communication channel. When working in environments where the servers are not part of the same domain, you need to specify which remote hosts are trusted to avoid connection failures due to security restrictions. This is particularly relevant for PowerShell remoting, where the default security settings require hosts to be part of a trusted domain or specified as trustworthy in the TrustedHosts configuration.

When the remote server is included in the TrustedHosts list, PowerShell can securely execute commands remotely, allowing administrators to manage features and perform installations without physically accessing the server. This capability is key to effective remote server management, especially in larger or more dispersed IT environments.

In contrast, requiring the remote server to be part of the same workgroup, logging in directly to the remote server, or needing specific software like Windows Server Backup is not necessary for remote installations with PowerShell. Such requirements can limit the flexibility and efficiency of remote management, which is often impractical in real-world scenarios where systems may not be configured in such rigid ways.