NetVizura Blog

OPNsense NetFlow and EventLog configuration

OPNsense is an open-source, FreeBSD-based firewall distro. It provides a modern GUI and numerous plugins. A great plus is its ease of use, in contrast to some other open-source firewalls in the past. Also, OPNsense is a fork of Pfsense (we ...
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  22 Hits
22 Hits

Palo Alto Active Directory and NetVizura End Users integration

NetVizura already has good Active Directory End Users integration - you can forward your logs from AD DC into NetVizura, and then correlate these login data with NetFlow data from your exporters. The result is a much better insight into the state of ...
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  94 Hits
94 Hits

Elasticsearch Windows upgrade

The Elasticsearch upgrade process is somewhat straightforward. Download the upgrade, apply it, and then restart the Elasticsearch service. However, in NetVizura we are not using elastic-licensed Elasticsearch but apache-licensed installation. Elastic...
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  369 Hits
369 Hits

Elasticsearch backup and restore

NoSQL databases differ in almost every aspect when compared to traditional RDBMS. While classic DBs (such as PostgreSQL) have, for example, dumps, Elasticsearch has the snapshotting capability that can be good in some cases but overwhelming in others...
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  548 Hits
548 Hits

NetVizura and Tomcat reverse proxy and SSL configuration

Sometimes we want to limit the availability of the NetVizura application and add additional security layers. Reverse proxy and SSL configuration are here to ensure this. A reverse proxy is an application that forwards requests from client to server, ...
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  491 Hits
491 Hits

NetVizura and Elasticsearch - How we did it?

Elasticsearch is a NoSQL database, usually used as a search engine. However, with its powerful logic, it can be used for pretty much anything. In our case, we have used Elasticsearch to hold aggregated NetFlow data. As we are incorporating it step by...
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  271 Hits
271 Hits

Elasticsearch as Big Data analytics tool

Every day approximately 2.5 quintillion bytes of data are generated. Data comes from a vast majority of different sources. This data is referred to as Big Data. Most of the time, Big Data is unstructured and doesn't make sense when presented as raw d...
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  455 Hits
455 Hits

PostgreSQL upgrade (version 9.6 to version 12)

PostgreSQL (commonly known as Postgres) is a well-known, solid as a rock database. And yes, from time to time it craves for an upgrade too. Today we will learn something about PostgreSQL Windows upgrade from version 9.6 to 12. KEEP IN MIND: As a...
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  2678 Hits
2678 Hits

Aruba NetFlow and EventLog configuration

Aruba is a global network company, a leader in Wi-Fi technology. Their most renowned merchandise are switches, which are purpose-built for the cloud, mobile and IoT. Users find Aruba CLI very comprehensible and its remarkably well designed GUI contai...
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  2082 Hits
2082 Hits

Open vSwitch NetFlow configuration

Open vSwitch (sometimes called OvS) is an open-source implementation of distributed virtual multilayer switch. The main role of OvS is to provide a switching stack for hardware virtualization and is slowly replacing Linux native bridge/bonds. Open vS...
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  1144 Hits
1144 Hits

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