User Guide Functional Overview Requirements Architecture System Installation NetEye Additional Components Installation Setup The neteye Command Director NetEye Self Monitoring Tornado Business Service Monitoring IT Operation Analytics - Telemetry Geo Maps NagVis Audit Log Shutdown Manager Reporting ntopng Visual Monitoring with Alyvix Elastic Stack IT Operations (Command Orchestrator) Asset Management Service Level Management Cyber Threat Intelligence - SATAYO NetEye Update & Upgrade How To NetEye Extension Packs Troubleshooting Security Policy Glossary
module icon Elastic Stack
Overview Architecture Authorization Elasticsearch Overview Enabling El Proxy Sending custom logs to El Proxy Configuration files Commands Elasticsearch Templates and Retentions El Proxy DLQ Blockchain Verification Handling Blockchain Corruptions El Proxy Metrics El Proxy Security El Proxy REST Endpoints Agents Logstash Elastic APM Elastic RUM Log Manager - Deprecated
ntopng Visual Monitoring with Alyvix Elastic Stack IT Operations (Command Orchestrator) Asset Management Service Level Management Cyber Threat Intelligence - SATAYO Introduction to NetEye Monitoring Business Service Monitoring IT Operation Analytics Visualization Network Visibility Log Management & Security Orchestrated Datacenter Shutdown Application Performance Monitoring User Experience Service Management Service Level Management & Reporting Requirements for a Node Cluster Requirements and Best Practices NetEye Satellite Requirements TCP and UDP Ports Requirements Additional Software Installation Introduction Single Node Cluster NetEye Master Master-Satellite Architecture Underlying Operating System Acquiring NetEye ISO Image Installing ISO Image Single Nodes and Satellites Cluster Nodes Configuration of Tenants Satellite Nodes Only Nodes behind a Proxy Additional NetEye Components Single Node Cluster Node Satellites Nodes only Verify if a module is running correctly Accessing the New Module Cluster Satellite Security Identity and Access Management External Identity Providers Configure federated LDAP/AD Emergency Reset of Keycloak Configuration Advanced Configuration Authorization Resources Tuning Advanced Topics Basic Concepts & Usage Advanced Topics Monitoring Environment Templates Monitored Objects Import Monitored Objects Data Fields Deployment Icinga 2 Agents Configuration Baskets Dashboard Monitoring Status VMD Permissions Notifications Jobs API Configuring Icinga Monitoring Retention Policy NetEye Self Monitoring 3b Concepts Collecting Events Add a Filter Node WHERE Conditions Iterating over Event fields Retrieving Payload of an Event Extract Variables Create a Rule Tornado Actions Test your Configuration Export and Import Configuration Example Under the hood Development Retry Strategy Configuration Thread Pool Configuration API Reference Configure a new Business Process Create your first Business Process Node Importing Processes Operators The ITOA Module Configuring User Permissions Telegraf Metrics in NetEye Telegraf Configuration Telegraf on Monitored Hosts Visualizing Dashboards Customizing Performance Graph The NetEye Geo Map Visualizer Map Viewer Configuring Geo Maps NagVis 3b Audit Log 3b Overview Shutdown Manager user Shutdown Manager GUI Shutdown Commands Advanced Topics Overview User Role Management Cube Use Cases ntopng and NetEye Integration Permissions Retention Advanced Topics Overview User Roles Nodes Test Cases Dashboard Use Cases Overview Architecture Authorization Elasticsearch Overview Enabling El Proxy Sending custom logs to El Proxy Configuration files Commands Elasticsearch Templates and Retentions El Proxy DLQ Blockchain Verification Handling Blockchain Corruptions El Proxy Metrics El Proxy Security El Proxy REST Endpoints Agents Logstash Elastic APM Elastic RUM Log Manager - Deprecated Overview Authorization in the Command Orchestrator Module Configuring CLI Commands Executing Commands Overview Permissions Installation Single Tenancy Multitenancy Communication through a Satellite Asset collection methods Display asset information in monitoring host page Overview Customers Availability Event Adjustment Outages Resource Advanced Topics Introduction Getting Started SATAYO Items Settings Managed Service Mitre Attack Coverage Changelog Before you start Update Procedure Single Node Upgrade from 4.41 to 4.42 Cluster Upgrade from 4.41 to 4.42 Satellite Upgrade from 4.41 to 4.42 DPO machine Upgrade from 4.41 to 4.42 Create a mirror of the RPM repository Sprint Releases Feature Troubleshooting Tornado Networking Service Management - Incident Response IT Operation Analytics - Telemetry Identity Provider (IdP) Configuration Introduction to NEP Getting Started with NEPs Online Resources Obtaining NEP Insights Available Packages Advanced Topics Upgrade to NetEye 4.31 Setup Configure swappiness Restarting Stopped Services Enable stack traces in web UI How to access standard logs Director does not deploy when services assigned to a host have the same name How to enable/disable debug logging Activate Debug Logging for Tornado Modules/Services do not start Sync Rule fails when trying to recreate Icinga object How to disable InfluxDB query logging Managing an Elasticsearch Cluster with a Full Disk Some logs are not indexed in Elasticsearch Elasticsearch is not functioning properly Reporting: Error when opening a report Debugging Logstash file input filter Bugfix Policy Reporting Vulnerabilities Glossary 3b

Logstash

Logstash on NetEye ships with an Elastic Stack template, which allows to manage its configuration within the NetEye environment.

Furthermore, please note how all pipelines configuration files, located in the /neteye/shared/logstash/conf/conf.*.d folders, are set as config files, which prevents them from being silently overwritten by future updates. As mentioned also in the .rpmsave and .rpmnew migration guide, config files will instead lead to an rpmnew file if they were modified both on the system and by the update, enabling so the user to control their migration.

Logstash Index Template

NetEye configures an index template logs-logstash dedicated to Logstash logs. Any log coming from the Logstash main pipeline, that will mainly manage rsyslog logs and user-customized input sources, will match the logs-logstash-* index template, which will create the dedicated data stream.

In order to modify the retention policy applied to such logs, you can set the desired retention period in the data stream control panel, by selecting Manage / Edit data retention.

Autoexpand Replicas

Configuration of Logstash replica that applies to both single instances and clusters is done by means of the “neteye-autoexpand-replicas” component template applied to the Logstash index template logs-logstash. The new indices matching the pattern logs-logstash-* will automatically configure the replica with the range 0-1 using the index.auto_expand_replicas setting.

Plugins

Logstash provides a variety of plugins, i.e. input, filter, codec, and output plugins, which serve to enhance its functionality in a custom manner.

Some plugins are shipped with Logstash by default, however, there is a possibility to add plugins on top of the ones that are available in your deployment.

All the plugins supported at various levels can be found in the Elastic Support Matrix.

You can list the plugins currently available in your deployment by running the following subcommand:

/usr/share/logstash/bin/logstash-plugin list

Check out the official Logstash guide for instructions on how to install and remove additional plugins.

On top of that, you can check the plugins that were installed additionally by running

python3 /usr/share/neteye/logstash/scripts/configurator/logstash_plugin_manager.py additional-plugins-installed

Check out more listing options in the Logstash official documentation.

Plugins have their own release cycles and are often released independently of Logstash’s core release cycle. With every NetEye update, Logstash is being updated together with the plugins available in your deployment.

For the plugins that were installed additionally, on top of the ones that were shipped with Logstash by default, you can use the update subcommand to get the latest version of the plugin:

/usr/share/logstash/bin/logstash-plugin update [PLUGIN]

Warning

It is not recommended to update or remove the plugins shipped by default manually, since every neteye update / neteye upgrade will overwrite those changes and reinstall or update the plugins to the latest version available. In some cases it may also lead to Logstash not operating properly.

More information about Logstash plugins can be found in Logstash official documentation.

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