PRTG Manual: SSL Certificate Warning
If you use PRTG on premises outside your internal LAN, especially when you use it on the internet, you should switch the internal web server to use SSL. After doing so, your browser shows a certificate warning because the certificate that comes with PRTG cannot be signed by a valid authority. Anyway, the connection to your PRTG web server is secured via SSL, and you can confirm the claimed security risk.
Every browser shows a slightly different certificate warning. The necessary steps are similar for every browser, with a few small differences:
In Google Chrome, click Advanced and then Proceed to [yourPRTGserver] (unsafe) every time you call the PRTG web interface.
In Mozilla Firefox, click Advanced and then click the Add Exception... button. A window opens, leave the check mark for Permanently store this exception and finally click the Confirm Security Exception button.
You only have to go through this procedure once for every Firefox browser and PRTG core server.
In Internet Explorer, click Continue to this website (not recommended) every time you call the web interface.
For other, not officially supported browsers, the procedure is similar.
Freeware Network Tools: PRTG Certificate Importer—Installing Trusted SSL Certificates for PRTG Network Monitor
Knowledge Base: Why can't I save my PRTG password in Google Chrome?
- SSL Certificate Warning
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