use Visual Studio and Azure Services behind a firewall or proxy server
If you or your organization uses security measures such as a firewall or a proxy server, then there are domain URLs that you might want to add to an "allowlist" and ports and protocols that you might want to open so that you have the best experience when you install and use Visual Studio and Azure Services.To get more news about
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Because the Visual Studio Installer downloads files from various domains and their download servers, here are the domain URLs that you might want to add to an allowlist as trusted in the UI or in your deployment scripts.
To make sure that you have access to everything you want when you use Visual Studio or Azure Services behind a firewall or proxy server, here are the URLs you should add to an allowlist and the ports and protocols that you might want to open.
Sometimes, you might run in to network- or proxy-related errors when you install or use Visual Studio behind a firewall or a proxy server. For more information about solutions for such error messages, see the Troubleshooting network-related errors when you install or use Visual Studio page.