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How to install an SSL Certificate on PRTG Network Monitor?

Tuesday, April 2nd, 2019

In this article, you will learn how to generate a CSR tool and install an SSL certificate on PRTG Network Monitor. On top of that, you will also discover a few interesting facts about PRTG Network Monitor, as well as the best place to shop for affordable SSL Certificates.

If you’ve already applied for an SSL Certificate and received the required SSL files, you can jump straight to the installation instructions. Use the links below to navigate between this article’s sections:

Generate a CSR code on PRTG Network Monitor
Install an SSL Certificate on PRTG Network Monitor
Test your SSL installation
PRTG Network Monitor history and version
Where to buy the best SSL Certificate for PRTG Network Monitor?

Generate a CSR code on PRTG Network Monitor

CSR stands for Certificate Signing Request, a block of encrypted code containing your contact data. Generating CSR is a mandatory step for every SSL applicant. Since you can’t create the CSR code directly on the PRTG system, you’ll need to do it on your own Windows device.

Before we proceed to CSR generation instructions, download the PRTG Certificate Importer. This free tool configures and converts your SSL files for the use with PRTG. It saves you a lot of time and hassle.

To create your CSR code for PRTG Network Monitor perform the following:

  1. Download and install the Win32 Open SSL Light utility

    Note: If upon installation you see the following error: “The Win32 OpenSSL Installation Project setup has detected that the following critical component is missing: Microsoft Visual C++ 2008 Redistributables. Win32 OpenSSL will not function properly without this component. It is recommended that you install the missing component before clicking OK to continue.”, download the Microsoft Visual C ++ 2008 Redistributable Package.

  2. Go to Start->Run->”cmd“, and navigate to the c:\openssl\bin folder where the openssl.exe is located (“cd c:\openssl\bin”)
  3. Run the following command:
    openssl req -nodes -newkey rsa:2048 -keyout prtg.key -out prtg.csr -config openssl.cfg
  4. Next, you have to enter your contact details into the OpenSSL wizard. Please, follow the examples below to fill in the required information:
    • Country Name (2 letter code): specify the two-letter code of your country. For instance, US.
    • State or Province Name: enter the full name of the state where your company is located. For example, Florida
    • Locality Name: write the full name of the city where your company is registered. For instance, Orlando
    • Organization Name: type the full legal name of your company. For example, Your Company LLC
    • Organizational Unit Name: indicate the department managing the SSL Certificate request. For instance, IT or Web Administration
    • Common Name: specify the FQDN (fully-qualified domain name) you want to secure. For example, yoursite.com
    • Email address: provide a valid email address
    • You can skip the extra attributes
  5. The OpenSSL utility will create two files in the c:\openssl folder:
    • csr: this is your CSR Code which you must send to your CA
    • key: this is your private key. Keep it safe and don’t share it with anyone. You will need the private key during the SSL installation.
  6. You can open your CSR file with any text editor such as Notepad. When requesting your SSL Certificate, copy-paste the CSR contents including the BEGIN CERTIFICATE and END CERTIFICATE tags into the corresponding box, on your SSL vendor’s page.

Install an SSL Certificate on PRTG Network Monitor

After your CA approves your request and delivers the SSL files to your inbox, you can continue with the installation.

First, you need to download the ZIP Folder and extract the SSL files on your device. PRTG Network Monitor offers a free tool to automate the SSL installation. You can download and use it to configure your certificate. Alternatively, you can perform a manual installation. To import your SSL certificate manually, please follow the instructions below:

Prepare the necessary SSL files

PRTG Network Monitor uses three different certificate files in PEM format, and an unencrypted private key. Here’s what you need:

  • crt: this is your primary (server) SSL certificate. It must be encoded in PEM format. Make sure it has the correct name and extension
  • key: this is your private key. It must be DECRYPTED to work with PRTG Network Monitor. Open the private key file with any text editor such as Notepad. Use the CTRL+F hotkey to search for the word “Encrypted”. If you find it, you must decrypt the file. You can do it via the OpenSSL tool and your key password.
  • pem: this file must contain the necessary root certificate or certificates, merged into a single PEM file. The order of the certificates doesn’t matter.

Note: PRTG Network Monitor will not be able to start if you don’t provide the files in the expected format.

Once all three files are ready, place them to the /cert subfolder of your PRTG directory. Restart your server to complete the installation.

Congratulations, you’ve successfully installed an SSL Certificate on PRTG Network Monitor.

Test Your SSL Installation

After you install the SSL Certificate on PRTG Network Monitor, type your URL in your browser’s address bar to check the SSL padlock and certificate information. Even if everything displays correctly, we recommend performing a thorough test of your SSL configuration that’ll pinpoint potential hidden errors and vulnerabilities. These powerful SSL tools deliver instant scans and reports on the state of your SSL Certificate.

PRTG Network Monitor history and versions

PRTG Network Monitor (Paessler Router Traffic Grapher until version 7) is an agentless network monitoring software developed by Paessler AG. It monitors and classifies system conditions like bandwidth usage or uptime. On top of that, it also gathers statistics from different kinds of hosts as switches, routers, servers and other applications and devices.

PRTG Monitor was first launched in 2003 by the German Company Paessler GmbH (now: Paessler AG). Running on the Windows OS, the current stable version of PRTG Network Monitor is 18.4.47, released in December 2018.

Where to buy the best SSL Certificate of PRTG Network Monitor

If you’re looking for affordable SSL Certificates, then SSL Dragon is your best SSL vendor. Our intuitive and user-friendly website will walk you through the entire range of SSL Certificates. All our products are issued by reputable Certificate Authorities and are compatible with PRTG Network Monitor. We offer the following SSL validation types:

We bring you the lowest prices on the market and dedicated customer support for any certificate you choose. And, if your struggling to find the ideal cert for your website, use our SSL Wizard and Advanced Certificate Filter tools to get suggestions.

If you find any inaccuracies, or you have details to add to these SSL installation instructions, please feel free to send us your feedback at [email protected]. Your input would be greatly appreciated! Thank you.