Error 400 Host does not match SNI when running PowerChute behind a Reverse Proxy

[doolbneerg]

I have been trying to put my PowerChute Serial Shutdown server behind a reverse proxy I have so that I will get a valid SSL certificate. However, I am getting “HTTP ERROR 400 Host does not match SNI” when I attempt to connect. In the log file it is “[qtp477405852-69] ERROR - [http.ValidationHandler.()] handle() - Request host header contains invalid host:”. I tried updating the certificate to be a validate certificate for the DNS entry I am providing, but it seems like PowerChute might be doing its own logic here instead of using the metadata associated with the certificate stored in the keystore.

Is there a way to configure what host name values PowerChute will find acceptable?

[totoli]

I have the same experience.
Connect to nginxproxy as a subdomain and apply TLS and access it,
You will be redirected to a "Host does not match SNI" error page.

[JereckNET]

Error still happening with PCSS new version 1.2.0.301

[ekengren]

We’re having the same problem with WebUI not working behind our reverse proxy. Does anyone know what the last working version is?