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Ossec

Ship OSSEC logs to logstash

Follow this step by step guide to get 'logs' from your system to Logit.io:

Step 1 - Configure OSSEC to output JSON alerts

In the OSSEC configuration file (/var/ossec/etc/ossec.conf), find the <global> tag.

Add the <jsonout_output> property and set to yes.

<global>
  <jsonout_output>yes</jsonout_output>
</global>

Restart OSSEC.

sudo /var/ossec/bin/ossec-control restart

Step 2 - Install Filebeat

To get started first follow the steps below:

  • Install
  • Root access
  • Verify the required port is open

Older versions can be found here 7, 6, 5

Step 3 - Update your configuration file

The configuration file below is pre-configured to send data to your Logit.io Stack via Logstash.

Copy the configuration file below and overwrite the contents of filebeat.yml.

# ============================== Filebeat modules ==============================
filebeat.config.modules:
  path: ${path.config}/modules.d/*.yml
  reload.enabled: false
  #reload.period: 10s

# ================================== Outputs ===================================
# ------------------------------ Logstash Output -------------------------------
output.logstash:
    hosts: ["your-logstash-host:your-ssl-port"]
    loadbalance: true
    ssl.enabled: true

# ================================= Processors =================================
processors:
  - add_host_metadata:
      when.not.contains.tags: forwarded
  - add_cloud_metadata: ~
  - add_docker_metadata: ~
  - add_kubernetes_metadata: ~

If you’re running Filebeat 7 add this code block to the end. Otherwise, you can leave it out.

# ... For Filebeat 7 only ...
filebeat.registry.path: /var/lib/filebeat

If you’re running Filebeat 6 add this code block to the end. Otherwise, you can leave it out.

# ... For Filebeat 6 only ...
registry_file: /var/lib/filebeat/registry

Validate your YAML

It’s a good idea to run the configuration file through a YAML validator to rule out indentation errors, clean up extra characters, and check if your YAML file is valid. Yamllint.com is a great choice.

Step 4 - Start filebeat

Start or restart to apply the configuration changes.

Step 5 - Check Logit.io for your logs

Now you should view your data:

View my data

If you don't see logs take a look at How to diagnose no data in Stack below for how to diagnose common issues.

Step 6 - how to diagnose no data in Stack

If you don't see data appearing in your Stack after following the steps, visit the Help Centre guide for steps to diagnose no data appearing in your Stack or Chat to support now.

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