Hello
In October I inquired about this topic: “HTTPS connection with” Warning: Potential Security Risk “or invalid certificate” here:
My request was to initiate connections on Windows browsers without having security warnings for lack of a signed certificate.
I was told by multiple users - which I thank - that I could use the certificates signed by Synology.
Unfortunately at the time for not having understood the instructions well and secondly for lack of time I put aside the search for the solution.
Today I return to this topic to confirm that the replacement of the Syncthing https-cert.pem and https-key.pem files was successful, consequently I no longer receive the security warnings.
I inform Windows/Synology users possibly interested in the topic and who have not solved it, that the https-cert.pem and https-key.pem files that I was advised to replace with those issued by Synology on Windows are located at the path: C:\Users\MyUser\AppData\Local\Syncthing.
On the other hand, the certificates issued by Synology have these two names: “RSA-privkey.pem” and “RSA-cert.pem” (or also “ECC-cert.pem” and “ECC-cert.pem” as Synology issues two types of certificates)
It was enough to simply rename the two files “RSA-privkey.pem” and “RSA-cert.pem” in https-key.pem and https-cert.pem, then copy them to the path: C:\Users\MyUser\AppData\Local\Syncthing.
I am no longer receiving security alerts. What I don’t know, but which no longer represents a problem, is the possible expiration of the certificates used which could give rise to a new security warning, which can be solved as already explained …
Greetings
// Edit, WW: https-