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403 error when connecting to site with a self-signed certificate



When I try to connect to my jenkins server, https://<ip>:8080, with either the https sensor or advanced https sensor I get a 403 error. I've tried setting "do not inherit SNI from parent". I've tried setting the "compatibility engine" with "do not check ssl certificates". I get "The remote server returned an error: (403) Forbidden." I'm guessing it's because the jenkins service is running using a self-signed certificate. The ping sensor works.

http-sensor jenkins prtg

Created on May 27, 2022 3:41:51 PM

2 Replies




Are you able to open the site in a browser from the probe on which you have added the HTTP sensor?

Kind regards,
Sasa Ignjatovic, Tech Support Team

Created on May 31, 2022 6:36:35 AM by  Sasa Ignjatovic [Paessler Support]



I found out that I needed to give PRTG the redirect URL, not the canonical URL. When I go to the jenkins page, I type in https://<url>:8080, but that immediately redirects (if I'm not currently logged in, which is the case if PRTG is connecting) to https://<url>:8080/login?from=%2F and that is the URL to enter into PRTG so it will work.

Created on Jun 7, 2022 8:54:49 PM

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