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Microsoft Sentinel
A scalable, cloud-native solution for security information event management and security orchestration automated response. Previously known as Azure Sentinel.
1,165 questions
Setting up syslog ingestion into Microsoft Sentinel using the Azure Monitor Agent (AMA) can be a bit tricky, especially with recent updates and the deprecation. Here’s a step-by-step outline of what you should do based on the latest guidelines:
- Azure Arc Enrollment
You’re on the right track by ensuring that your on-premises syslog server is connected to Azure Arc. This step is crucial for managing and monitoring your resources across hybrid environments.
- Install and Configure the Azure Monitor Agent (AMA)
Installing the Azure Monitor Agent (AMA) on your syslog server is essential. Here’s a more detailed breakdown of this step:
- Installation:
- Download the AMA installation script from here.
- Execute the following commands on your Linux machine:
wget https://aka.ms/InstallAMA.sh
- Download the AMA installation script from here.
sudo bash InstallAMA.sh ```
- **Configuration**:
- Once installed, configure the AMA to collect syslog data.
- Edit the **`ama.conf`** file to specify the syslog facilities and severities you want to collect.
- Example configuration (adjust paths and settings as needed):
```python
[syslog]
enabled = ```
- Syslog Data Connector
As you correctly pointed out, the dedicated Syslog data connector for AMA might not be directly available in the Content Hub. Instead, consider using the Common Event Format (CEF) data connector, which is widely supported and works well with syslog data.
Additional Steps for CEF Connector:
- Create a Linux Virtual Machine (if needed):
- If your syslog server isn’t already running Linux, set up a Linux VM where you can install the necessary agents.
- Install the AMA on the Linux VM:
- Use the same installation commands as mentioned earlier.
- Configure the AMA for Syslog Collection:
- Download the AMA configuration script specific to syslog.
- Adjust the configuration settings to match your environment.
- Download the AMA configuration script specific to syslog.
Install the Syslog or CEF Data Connector in Sentinel:
- Navigate to Microsoft Sentinel in the Azure portal.
- Select Data Connectors from the Configuration section.
- Find and select the CEF connector:
- Follow the provided steps to set it up.
- This typically involves installing the required agent on the machine that will send CEF logs.
- Configure your syslog server to forward logs in CEF format to the agent.
- This typically involves installing the required agent on the machine that will send CEF logs.
- Follow the provided steps to set it up.
Tips:
- Verify Configuration:
- Ensure that your syslog server forwards logs correctly.
- Check that the AMA is properly receiving these logs.
- Ensure that your syslog server forwards logs correctly.
- Logs:
- Examine the logs on your syslog server and the machine running AMA for any errors or misconfigurations.
- Permissions:
- Confirm that the user running the AMA has the necessary permissions to access the syslog files and send data to Azure Monitor.
Remember to consult the official Microsoft documentation for the most up-to-date instructions and detailed guidance.
Ingest Syslog and CEF messages to Microsoft Sentinel with the Azure Monitor Agent
Deploy a log forwarder to ingest Syslog and CEF logs to Microsoft Sentinel
Collect data from Linux-based sources using Syslog
By following these steps, you’ll successfully set up syslog ingestion into Microsoft Sentinel using AMA. If the dedicated syslog connector for AMA isn’t available yet, relying on the CEF connector is a reliable alternative.
