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 4.42 to 4.43 Cluster Upgrade from 4.42 to 4.43 Satellite Upgrade from 4.42 to 4.43 DPO machine Upgrade from 4.42 to 4.43 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

Architecture

NetEye Elastic Stack Feature Module is based on the Elastic Stack key components, in particular:

Elasticsearch and Elasticsearch cluster

Elasticsearch can be installed in different modalities, the simplest being as a service running on a NetEye single instance.

When running a NetEye Cluster with NetEye Elastic Stack installed, Elasticsearch can be run as either a parallel Elasticsearch Cluster or as an Elastic node within the NetEye cluster. Please refer to NetEye’s Cluster Architecture for details.

Elasticsearch, regardless of how it is installed, is used in the context of SIEM for multiple purposes:

  1. as a database to store all the log files that have been collected and processed

  2. as a search engine over the data stored

  3. to process data (though this function is carried out also by other components, see below)

BEAT

A Beat is a small, self-contained agent installed on devices within an infrastructure (mostly servers and workstations) that acts as a client to send data to a centralised server where they are processed in a suitable way.

Beats are part of the Elastic Stack; they gather data and send them to Logstash.

There are different types of Beat agents available, each tailored for a different type of data. BEATs supported by NetEye are described in section The Elastic Beat feature.

Elastic Agent

Elastic Agent is a lightweight, modular agent that is part of Elastic Stack. It is designed to collect and ship data from various sources to Elasticsearch. The Elastic Agent is used to replace and consolidate multiple Beats and other agents previously used for data collection.

Please refer to the dedicated Elastic Agent section for more details of Elastic Agents in NetEye and to the official Elastic Agent documentation for a detailed description of the Elastic component.

Logstash

Logstash is responsible for the collection of logs, (pre-)processing them, and forwarding them to the defined storage: an Elasticsearch cluster or to El Proxy. Logs are collected from disparate sources, including Beats, syslog, and REST endpoints.

El Proxy

The purpose of the Elastic Blockchain Proxy is to receive data from Logstash and process it: first, the hash of the data is calculated, then data are signed and saved into a blockchain, which guarantees their unchangeability over time, and finally everything is sent to Elastic. Please refer to section El Proxy Architecture for more information.

Kibana

A GUI for Elasticsearch, its functionalities include:

  1. visualise data stored in Elasticsearch

  2. create dashboards for quick data access

  3. define queries against the underlying Elasticsearch

  4. integration with Elastic’s SIEM for log analysis and rule-based threats detection

  5. use of machine-learning to improve log analysis

More information about these components can be found in the remainder of this section.

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