Running Cells Behind a Proxy

Proxies are one of the most common way to secure your web servers, they can hide the IP of your App server, be the main gateway to your private (virtual) network, serve as TLS Termination point and expose your public certificates, etc.

For basic usage (Web UX, REST API's, Mobile Applications), a simple HTTP proxy is fairly easy to set up. However, care must be taken on the Cells External URL configuration which will probably differ (your outside world access) from the Bind URL configuration (the IP/domain name where the Cells server listens to).

Warning: if you intend to use the Cells Sync client together with your server instance, you cannot use TLS Offloading on your reverse proxy. The communication between the sync client and the server is done via gRPC on HTTP/2 and this will not work if you drop from HTTPS to HTTP between your reverse proxy and your Cells instance. Furthermore, note that your proxy has to support this protocol.


In our knowledge base we have a growing number of comprehensive guides to setup various proxies with Cells:

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