Blog Entries

06. 05. 2024 Tobias Goller Unified Monitoring

QUIC, What’s That?

As you may know, I do ntopng consulting, and support companies in their implementation of ntop solutions. For some time now, ntopng users have noticed a high amount of QUIC traffic in their respective networks. Most people don’t really know what QUIC is, which is why I’d like to take this as an opportunity to…

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30. 04. 2024 Franco Federico Unified Monitoring

Reacting with Remediation after a Service Goes Down

A customer last week asked me to implement the following use case: When a production PLC device (programmable logic controller) goes offline, any associated service must be automatically switched off, since it needs to connect to the PLC in order to exchange data from the source server, and for that the PLC must be active….

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30. 04. 2024 Andrea Mariani NetEye, Unified Monitoring

Balancing Two NetEye Satellites with the keepalived Service

NetEye installations can be either in Standalone (Single Node) or in Cluster configuration, and for each one there’s the possibility to extend monitoring in segregated portions of the network or remote locations, or simply to be able to lighten the load of the master through the use of one or more satellites (the number of…

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11. 04. 2024 Alessandro Romboli Business Service Monitoring, NetEye, SLM

SLA Reporting on a Business Process

Scenario NetEye 4 is a comprehensive monitoring platform which natively supports Business Processes. A Business Process is an abstract view of a customer’s business from the Application point of view. Usually, it’s a collection of Icinga 2 checks aggregated by “AND, OR, At Least” logic in order to monitor whether a Business Application is really…

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02. 04. 2024 Mattia Codato Downloads / Release Notes, NetEye, Unified Monitoring

NetEye 4.35 Release Notes

Welcome to version 4.35 of our NetEye v4 Unified Monitoring Solution. NetEye 4.35 is welcoming you with a breathtaking view of the Lago di Carezza (Karersee). It is also called “Rainbow Lake”. The lake is unique as it gleams with all colors of the rainbow, which makes it a favorite destination for professional photographers and…

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25. 03. 2024 Franco Federico APM, NetEye, Visual Synthetic Monitoring

Migration from Alyvix Server to Alyvix Service

Beginning with NetEye version 4.26, Alyvix has been fully integrated into NetEye. Currently Alyvix within NetEye is implemented as the neteye-alyvix module, and is part of our Application Performance Monitoring (APM) world. We have Elastic with all the functionality of traditional APM, and then for synthetic monitoring we have Alyvix. In the past few weeks…

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20. 03. 2024 Attilio Broglio Unified Monitoring

How to Monitor the TOP N RAM-Using Processes

After developing a custom check for monitoring the most CPU demanding processes on Windows servers, we implemented a similar check for RAM usage. Like I described in that previous post, we built this command via PowerShell. PowerShell provides the cmdlet: Get-Counter that gets performance counter data directly from the performance monitoring instrumentation in the Windows…

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20. 03. 2024 Attilio Broglio Unified Monitoring

How to Monitor the TOP N CPU-Using Processes

During my last session with a customer, I faced an interesting and challenging issue in the Windows environment. The question was: “How can I monitor the list of the most CPU-demanding processes?” The request immediately looked like one that’s very simple to understand, but hard to implement. We look for something out of the box…

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14. 03. 2024 Attilio Broglio NetEye, Unified Monitoring

How to Control Remote Devices from NagVis Maps via Tornado

This article stems from a project on the remote control of devices using NagVis maps. The main purpose is to find an easy way to actuate a remote device through a click on an interface. To do this, we implemented a method that uses Nagvis’ context menu by adding links. Clicking on them sends a…

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05. 03. 2024 Tobias Goller Unified Monitoring

nBox Mini

Every now and then I like to keep you up to date about news in the ntop environment. This time it’s not news about analysis methods or software, but about a new hardware solution. If you’re someone looking for a hardware-based, scalable, optimized, and purpose-built solution, without the hassle of software installation, chances are you’re…

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23. 02. 2024 Juergen Vigna Log-SIEM, NetEye, Unified Monitoring

Monitoring Logs in Elasticsearch: A Practical Example

Say you want to monitor logs coming into your Elasticsearch instance, and have it send data to your Monitoring Dashboard. I’ll show you how to do this with a practical example, in particular for an event coming from the Active Directory where a user is locked out, and the associated Domain Controller sends the event…

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13. 02. 2024 Tobias Goller NetEye, Unified Monitoring

SNMP Trap Archiving in Elastic via Tornado

First of all, I’ll briefly explain what the “Tornado” in NetEye actually is. Tornado is a Complex Event Processor that receives reports of events from data sources such as monitoring, email, and SNMP Traps, matches them against rules you’ve configured, and executes the actions associated with those rules, which can include sending notifications, logging to…

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01. 02. 2024 Mattia Codato Downloads / Release Notes, NetEye, Unified Monitoring

NetEye 4.34 Release Notes

Welcome to version 4.34 of our NetEye v4 Unified Monitoring Solution. Spring is slowly approaching and the first plants awake from their winter slumber and peek through the snow. One of the earliest to bloom is the Crocus from the family of the Iridaceae. It’s native to Europe, North Africa, and Central Asia up to…

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16. 01. 2024 Patrick Zambelli NetEye, Unified Monitoring

Icinga 2 DSL for Defining the Monitoring Status of Objects with Director

Today I want to present an Icinga 2-based monitoring use case where concepts of the powerful Icinga 2 DSL functional language come into play. The use case is based on mapping the status of a Host/Service Object via passive check results only. For this kind of use case, any accidental active status check could potentially…

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09. 01. 2024 Matteo Cipolletta Unified Monitoring

Reassign Elasticsearch ILM Policy with Python

Index Lifecycle Management (ILM) policies constitute a fundamental component in Elasticsearch index management. They enable users to define the life stages of an index, determining when and how specific actions, such as transitioning from a “hot” to a “cold” state or deleting obsolete indices, should occur. ILM policies empower users to ensure the optimal distribution…

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