What file is typically used to display messages at the login prompt when remote users telnet in to the machine?

`/etc/issue` is used to display a message before the login prompt for local logins (e.g., on a physical console), not remote ones.

`/etc/motd` (Message Of The Day) is displayed after a user successfully logs in, not before the login prompt.

`/etc/net.banner` is not a standard or common file for displaying remote login banners in Linux/Unix systems.

The `/etc/issue.net` file is specifically designed to display a message or banner to remote users before they log in, particularly for services like Telnet or SSH, providing pre-authentication information.