This article applies as of PRTG 24

Monitoring AWS Linux instances with SSH sensors

To monitor your AWS Linux instances using SSH sensors, you need to take the following steps.

1. Make sure that your Linux instances have a security group configured that allows SSH access via port 22.
   
   Click to enlarge.
   
2. Create devices in PRTG for each of your EC2 instances using the public IP address of each instance.
   Click to enlarge.
   
3. Set the Credentials for Linux/Solaris/Mac OS (SSH/WBEM) Systems in the device settings based on your AWS user and private key.
   • The Amazon Linux AMI default user is ec2-user.
   • Generate your private key in OpenSSH RSA format as described in How can I use private keys for my SSH sensors with PRTG?
     
     Click to enlarge.
4. You can now add the following sensors to your devices in PRTG:
   • SSH Disk Free
   • SSH INodes Free
   • SSH INodes Free v2
   • SSH Load Average
   • SSH Load Average v2
   • SSH Meminfo
   • SSH Meminfo v2
   • SSH Remote Ping (can be used to ping the private IP address of your EC2 instance)
   • SSH Remote Ping v2

The device with the SSH sensors looks like this:
Click to enlarge.

More

• AWS documentation: Connecting to Your Linux Instance Using SSH