PowerChute Serial Shutdown SSL Certificate Not Trusted

[batlan]

Since the SSL certificate for PowerChute Serial Shutdown's server is self-signed, modern browsers don't trust it and you have to click through a warning to get to the server's web interface.

To ensure the certificate is trusted, I'd like to do one of two things:

1. Download the certificate's key so I can add it to my trusted store.
2. Replace the certificate with one that is trusted.
3. Disable HTTPS, since it's not necessary for my local network.

Are any of these methods possible?

I tried using my self-hosted DNS (pi-hole) and reverse proxy (nginx) to set up a local domain with a Let's Encrypt SSL certificate, but PowerChute Serial Shutdown wouldn't show the page when I did that. Instead, I was shown a page that said "Error 400 Host does not match SNI".

[BillP · Accepted solution]

@batlan 

You can add the self-signed certificate to the browser and you will not be asked to accept it after that or you can change the certificate with one signed by a known certificate authority. 

See the PowerChute security handbook for information on changing the security certificate. 

https://download.schneider-electric.com/files?p_Doc_Ref=SPD_CCON-PCSSSH_EN&p_enDocType=User+guide&p_...