topic decryption error - response page not displaying to user in General Topics

decryption error - response page not displaying to user

krisfraser — Wed, 29 Sep 2021 12:44:03 GMT

We have set a new decryption profile that is hardened to a new 10.0.6 PA 3250.

Most things seem ok however when we go to the guardian website we just get a this site cant be reached page. It would be great if the user got a response page saying decryption error. Is there a way to get this? There could be others (lots of General TLS protocol errors).

the decryption policy is pretty restrictive - we might have to uncheck to find what is causing the issue if we cannot get a response page to the user

Does anyone know how we can get a response page to the user to say decryption error?

Re: decryption error - response page not displaying to user

LAYER_8 — Wed, 29 Sep 2021 15:56:32 GMT

See this thread for troubleshooting ideas. You will need to confirm if the error is being served a non-connection from the browser or the firewall. There may be some elements (DoH) within browser config that might need changing. Are you able to confirm via curl or others that the full webpage is being served to your machine?

Re: decryption error - response page not displaying to user

BPry — Thu, 30 Sep 2021 02:50:06 GMT

@krisfraser,

There isn't any sort of decryption error response page that you can just add. You only have the decryption opt-out and certificate error pages, but there isn't some sort of generic decryption error response page.

Re: decryption error - response page not displaying to user

krisfraser — Thu, 30 Sep 2021 06:37:50 GMT

@BPry - does that mean its normal for the user to see a "This site can't be reached" page if it fails due to a general TLS protocol error and there is nothing you can do?

Shame if it is as we will have to roll back some of the settings as management say the users must have a reason displayed if a webpage is not accessible (e.g category block just now)