The PRTG SSH (Secure Shell) sensor is a versatile tool primarily used for monitoring the status and performance of Linux and Unix-based systems via SSH protocol. Here are some common usages and configurations for the SSH sensor:

1. Server Availability Monitoring: The primary use of the SSH sensor is to monitor the availability and uptime of Linux/Unix servers. It establishes SSH connections to remote hosts and checks whether the servers are reachable and responsive.

2. Resource Monitoring: Monitor various system resources such as CPU usage, memory usage, disk space, and network bandwidth on Linux/Unix servers using the SSH sensor. This helps in identifying performance bottlenecks and optimizing resource allocation.

3. Process Monitoring: Track the status and performance of specific processes running on Linux/Unix servers. The SSH sensor can monitor process CPU and memory usage, as well as detect process crashes or abnormal behavior.

4. File System Monitoring: Monitor file system attributes such as file size, file count, and file age on Linux/Unix servers using the SSH sensor. This helps in managing disk space and ensuring proper file system operation.

5. Log File Monitoring: Monitor log files for specific events or patterns using the SSH sensor. This enables real-time log file analysis and alerting for critical events or errors.

6. Custom Command Execution: Execute custom commands or scripts on remote Linux/Unix servers via SSH and monitor the output using the SSH sensor. This provides flexibility for monitoring custom metrics or performing advanced system checks.

7. Threshold-based Alerting: Set up threshold-based alerts to be notified when monitored metrics exceed predefined thresholds. You can configure different alerting levels (e.g., warning and error) based on the severity of the issue.

8. Scheduled Scans: Configure scheduled scans to periodically monitor system metrics on Linux/Unix servers using the SSH sensor. This ensures continuous monitoring of system health without manual intervention.

9. Integration with Maps and Dashboards: Visualize the status of SSH sensors on maps and dashboards within PRTG Network Monitor. This provides a centralized view of server availability and performance across the network.

10. Secure Communication: Utilize SSH protocol for secure communication between PRTG Network Monitor and remote Linux/Unix servers. SSH ensures data confidentiality and integrity during monitoring operations.

By leveraging the capabilities of the SSH sensor in PRTG Network Monitor, you can effectively monitor the availability, performance, and security of Linux/Unix servers, identify issues proactively, and ensure the reliability of your IT infrastructure.