Blog Entries

11. 01. 2021 Enrico Alberti Log-SIEM, NetEye

Alerting on NetEye SIEM: Tornado Webhooks and Smart Monitoring (part 2)

In my previous post I showed you how to make your own alerts on NetEye SIEM by using the Elastic Watcher and Alerts and Actions features. But if we work in production environments, what we really need is an alert that can go directly to NetEye’s Monitoring Overview. How can we manage SIEM alerts and…

Read More
11. 01. 2021 Enrico Alberti Log-SIEM, NetEye

Alerting on NetEye SIEM: Watcher & ‘Alerts and Actions’ (Part 1)

The main goal of a monitoring system like NetEye is to alert and notify you when something noteworthy happens in your environment. All the logs coming in to NetEye SIEM can be analyzed, and could raise one or more alerts in the Elastic Stack, such as detection, machine learning anomalies, etc. How can you make…

Read More
02. 10. 2020 Enrico Alberti Log-SIEM, NetEye

NetEye Ingest Pipelines – How to Modify and Enrich SIEM Data

Is it possible to add Geo IP information automatically to my events even if it’s not present in the original log? How can I automatically decode a URL to dissect all its components? How can I convert a human readable byte value (e.g., 1KB) to its value in bytes (e.g., 1024) so I can use…

Read More
29. 05. 2020 Enrico Alberti Log-SIEM, NetEye

Icinga DSL: How to Enrich SIEM Logs with Icinga Custom Vars

Over the past few months, I’ve received multiple client requests to export custom fields (custom variables or data lists) present in Icinga Director in order to enrich logs on Logstash or to make specific changes to the indexing process. The solution that I am going to explain in this article uses the Icinga DSL check…

Read More
09. 03. 2020 Enrico Alberti Log-SIEM, NetEye

Store Years of NetFlow Historical Data with Elastic Rollup on NetEye 4.9

Keeping historical data around for analysis is extremely useful but often avoided due to the financial cost of archiving massive amounts of data. Retention periods are thus driven by financial realities rather than by the usefulness of extensive historical data. The Elastic Stack data rollup features provide a means to summarize and store historical data…

Read More

Archive