To answer your question: it is not possible to use Jetbrains Gateway without an internet connection. See for a more detailed look at how it works. Since it’s standalone, it’s the only thing you need to install locally to start working and is ideal for less powerful laptops and in cases where a full IDE install isn’t desired. The PHP plugin is bundled with PhpStorm and activated by default.

This whole process is managed by JetBrains Gateway, a new, compact, standalone app that provides everything you need to get started with remote development. Servers Last modified: 11 January 2023 File Settings PHP Servers for Windows and Linux PhpStorm Settings PHP Servers for macOS Ctrl+Alt+S The page is available only when the PHP plugin is enabled. You would not even require the full PHPStorm IDE, the Jetbrains Gateway is a standalone app that comes with a 'thin client' that can connect to the backend IDE: The JetBrains Client runs locally and provides the user interface for the IDE backend. It acts on the remote server as a 'backend IDE' to which the client on your local machine connects: Once the IDE version and project directory are selected, Gateway will download the IDE to the remote server, unpack it, and launch it with your project loaded. The 'Jetbrains Client' mentioned in the error message is not for your local machine, but for the Linux server: