This article applies as of PRTG 22



When I open the PRTG web interface, I get an SSL certificate warning in my browser. What does this mean?



SSL certificate warning in browsers

If you use PRTG outside of your internal LAN, particularly if you use it on the internet, make sure that you secure connections to the PRTG web server with SSL/TLS. Your browser then shows an SSL certificate warning when you open the PRTG web interface because PRTG comes with a self-signed certificate. The connection to the PRTG web server is still secured with SSL/TLS and you can confirm the supposed security risk.

Every browser shows a different SSL certificate warning that you need to confirm before you can proceed.


Google Chrome

In Chrome, click Advanced, then click Proceed to <yourPRTGserver> (unsafe) to confirm the SSL certificate warning.

Google Chrome


Mozilla Firefox

In Firefox, click Advanced, then click Accept the Risk and Continue.

Mozilla Firefox


Microsoft Internet Explorer

In Internet Explorer, click Go on to the webpage (not recommended).

Internet Explorer

The procedure is similar for other browsers that PRTG does not officially support.


How to avoid SSL certificate warnings

You can avoid the browser warnings if you use your own trusted SSL certificate with PRTG. For this purpose, use the free Paessler tool Certificate Importer to automatically import your certificate files. You can also manually import your certificate files. For more information, see How to use your own SSL certificate with the PRTG web server.


More



Disclaimer:
The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.