OpenVPN is an open source virtual private networking (VPN) solution that provides a secure and efficient way to connect to a remote network. OpenVPN can be used to access a private network over the internet, allowing users to securely access corporate networks, applications, and resources. It also provides a secure tunneling protocol that encrypts data as it passes through the network.
The prerequisites for monitoring OpenVPN with Netdata are to have OpenVPN and Netdata installed on your system.
Netdata auto discovers hundreds of services, and for those it doesn’t turning on manual discovery is a one line configuration. For more information on configuring Netdata for OpenVPN monitoring please read the collector documentation.
You should now see the OpenVPN section on the Overview tab in Netdata Cloud already populated with charts about all the metrics you care about.
Netdata has a public demo space (no login required) where you can explore different monitoring use-cases and get a feel for Netdata.
Active clients is a metric that provides insight into the number of clients that are currently connected to the OpenVPN server. Monitoring this metric can be used to determine the usage of the server and identify any potential issues that may arise due to overutilization, or if the number of active clients suddenly drops.
Total traffic is a metric that provides insight into the total amount of data that is being transferred over the OpenVPN server. This metric is important for understanding how busy the server is, and can be used to identify any potential issues related to bandwidth utilization.
User traffic is a metric that provides insight into the amount of data that is being transferred by individual users over the OpenVPN server. This metric is important for understanding if any particular user is using a disproportionate amount of bandwidth and can be used to identify any potential issues related to user bandwidth utilization.
User connection time is a metric that provides insight into the amount of time that a user is connected to the OpenVPN server. This metric is important for understanding how long users are connected to the server, and can be used to identify any potential issues related to user connection time.