Using Unity through web proxies

Some organizations use a web proxy, which is an intermediary server between users and the internet resource they’re requesting. Organizations use web proxies for several reasons, including security, privacy, and network efficiency.

If you are deploying Unity in an environment that requires internet access through a web proxy, you might need to configure the web proxy, client computers, or both.

Starting with Unity Editor 2023.1, the automatic proxy configuration feature lets you use Unity applications seamlessly when they need to communicate through a web proxy. Unity applications can communicate with the web proxy without interruption and without installing additional software. The amount of configuration required varies, depending on the following factors:

Interception of secure communication by the web proxy: Check if your web proxy uses SSL inspection, which some enterprises use to inspect the contents of secure (TLS) requests.
Unity version and operating system: Starting with Unity Editor 2023.1, Unity applications can access web proxy configuration from the Windows operating system. Earlier versions and other operating systems require extra configuration.
Authentication type: Check if your proxy supports basic authentication (username and password), or if it uses a SPNEGO mechanism and a protocol, such as Kerberos or NTLM.

The first factor that requires configuration is if your web proxy uses SSL inspection. If your enterprise uses SSL inspection, check if you can configure client computers to use environment variables and trust web proxy certificates:

If so, refer to Trusting the web proxy security certificate.
If not, refer to Define exceptions on your web proxy.

Then, consider the other factors and choose the solution that matches your environment:

Operating system	Unity version	Proxy authentication	Solution	Other information
Windows	Editor 2023.1 or later and Hub version 3.4.2 or later	Accepts basic authentication	Enable automatic proxy configuration. Store your credentials in Credential Manager.	You must be able to store proxy information in the operating system settings or in environment variables.
Windows	Editor 2023.1 or later and Hub version 3.4.2 or later	Doesn’t accept basic authentication, or doesn’t require authentication	Enable automatic proxy configuration. If your proxy requires authentication, add exceptions in a proxy exception list.	You must be able to store proxy information in the operating system settings or in environment variables.
Windows	Editor 2022.x or earlier or Hub 3.4.1 or earlier	Accepts basic authentication	Use environment variables to identify the web proxy. Add exceptions in a proxy exception list (preferred), or store username and password in the environment variables for the proxy.	Automatic proxy configuration isn’t fully supported before version 2023.1.
Windows	Editor 2022.x or earlier or Hub 3.4.1 or earlier	Requires authentication but doesn’t accept basic authentication	If your proxy requires authentication, add exceptions in a proxy exception list.	Automatic proxy configuration isn’t fully supported before version 2023.1.
macOS, Linux	Any	Any	Use environment variables to identify the web proxy. If your proxy requires authentication, add exceptions in a proxy exception list.

既知の問題点

For organizations that configure the web proxy with a proxy auto configuration (PAC) file, the HTTP keyword isn’t supported. Instead, use the PROXY keyword to specify a proxy that communicates over HTTP.

その他の参考資料

Enable Unity installation by standard users (Windows)

Enable automatic proxy configuration

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Using Unity through web proxies

既知の問題点

その他の参考資料