Linux - Configuration - Ensure the SentinelOne Agent is Running

What the SentinelOne Agent status checker does

This Automox Worklet™ monitors the status of the SentinelOne Agent on Linux endpoints and automatically restarts the service if it stops running. The Worklet uses the sentinelctl command-line tool to query agent status and initiate service recovery.

The Worklet first checks whether the SentinelOne Agent is installed on the endpoint by looking for the /usr/bin/sentinelctl executable. If the agent is not found, the Worklet exits without making changes. If the agent is installed, the Worklet evaluates the current service status.

When the agent is running, no action is taken. If the agent is not running, the Worklet attempts to restart both the systemctl service and the agent control process to restore protection.

Why maintain SentinelOne Agent availability

SentinelOne provides advanced threat prevention and detection on Linux endpoints. Service interruptions leave your systems vulnerable to malware, ransomware, and advanced attacks. A stopped agent cannot monitor process execution, network activity, or file operations.

Manual agent restart requires SSH access, security clearance, and administrative time. Automating this check maintains protection is restored within minutes if a service failure occurs. Your endpoints remain protected continuously without requiring IT Operations intervention.

Organizations using SentinelOne for compliance requirements (CyberEssentials, CIS Benchmarks, or zero-day protection) need consistent agent availability to meet audit standards. Automated remediation reduces security posture gaps that appear during service outages.

How SentinelOne agent restart works

1. Evaluation phase: The Worklet verifies SentinelOne installation by checking for /usr/bin/sentinelctl, then queries service status using sentinelctl control status. If the command succeeds, the agent is running and no remediation is needed. If the command fails, the Worklet flags the endpoint.

2. Remediation phase: The Worklet restarts the sentinelone.service using systemctl, then runs sentinelctl control start to resume the agent process. The Worklet verifies the agent successfully restarted. If the restart succeeds, the Worklet exits successfully. If the restart fails, the Worklet reports an error for IT operations investigation.

SentinelOne status check requirements

• SentinelOne Agent must be installed on the endpoint (verified at /usr/bin/sentinelctl)

• Linux operating system with bash shell support

• systemctl service manager available (standard on modern Linux distributions)

• Endpoint must have administrative privileges to restart system services

• Network connectivity for Automox agent to receive and execute the Worklet

Expected SentinelOne agent status after remediation

After successful remediation, the SentinelOne Agent service returns to running status on the endpoint. The Worklet verifies this by running sentinelctl control status again and confirms successful restart. Real-time threat detection, behavior analysis, and incident response capabilities resume immediately.

If you examine the endpoint after the Worklet runs successfully, you can verify the SentinelOne service is running by executing sentinelctl control status, which returns a success code. The Automox console displays remediation success, and the endpoint activity report shows the restart action and timing. No system restart is required.

How to validate verify the sentinelone agent is running changes

1. Run this Worklet on a pilot Linux endpoint and review evaluation output for verify the sentinelone agent is running.

2. Confirm Automox activity logs show successful completion and exit code 0.

3. Verify endpoint state using checks aligned to evaluation script logic, such as exit, else.

4. Validate remediation effects from script operations such as function, return, else, then rerun evaluation for compliance.