The VU.CITY Hub allows users to run VU.CITY through a web browser without the need for high-spec computer hardware or a traditional desktop installation. Real-time streaming and WebSocket technology are used to deliver this interactive design environment via our cloud infrastructure.

VU.CITY Hub requires a modern operating system and web browser to function.

Supported operating systems

• Windows 10 or later
• macOS 14 or later

Mobile devices running iOS or Android are not currently supported.

Supported browsers

• Chrome, Firefox, Edge, Brave, Safari.

Internet Explorer is not supported.

Network requirements

These requirements are standard for browser-based streaming applications and are similar to those used by video conferencing tools such as Microsoft Teams or Zoom. Outbound connections to the following are required.

Domains

• *.vu.city

VU.CITY also interacts with the following third-party domains:

• *.auth0.com
• *.posthog.com
• api.hsforms.com

Required ports

TCP 80
TCP 443
TCP / UDP 19303

Ports 80 and 443 are standard web ports - if general browsing works on the network, these are likely already open. Port 19303 (TCP and UDP) is the relay used to route live video when a direct connection is not available.

Proxy, inspection, and filtering

• All traffic between the end user and VU.CITY infrastructure is encrypted.
• Explicit proxy servers (proxy servers that the web browser is aware of) are supported.
• Transparent proxy servers (proxy servers that the web browser is unaware of) may interfere with WebSockets and should be bypassed for the above domains.
• If SSL inspection / HTTPS interception is in use, the listed domains should be exempted. Inspecting authentication or long-lived WebSocket traffic can disrupt session loading.
• Where a proxy or deep-packet inspection is in use, WebSocket connections over port 443 will also need to be permitted.

WebSocket support can be verified using any standard WebSocket testing service, such as this one.

Additional third-party requirements

Further detailed third-party requirements can be found here, if required:

Auth0

Posthog

Need help?

If connectivity issues persist after reviewing these requirements, this article should be shared with the relevant IT administrator. If the issue remains unresolved, contact VU.CITY Technical support for further assistance.