What command is used to force DNS registration from a command prompt for a Windows client?

The command that is used to force DNS registration from the command prompt for a Windows client is "ipconfig /registerdns." This command instructs the client to send its current IP address and host name to the DNS server for registration. This is particularly useful in environments where Dynamic DNS is configured, allowing DNS entries to be updated automatically.

Using this command ensures that changes to the client's IP address or host name are reflected in the DNS records, which is critical for maintaining network reliability and helping other devices on the network locate the client by its hostname. The other commands serve different purposes: releasing an IP address (ipconfig /release), flushing the DNS resolver cache (ipconfig /flushdns), and displaying all current TCP/IP configuration values (ipconfig /all) do not facilitate DNS registration directly.