NetVizura Blog

5 reasons for using EventLog Analyzer

Having administrator job these days means overseeing numerous IP devices, so logging is somewhat indispensable. Every info, warning and error occurred on these devices needs to be logged and saved for possible inspection. We here provide you with 5 r...
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33 Hits

EventLog alert notification

Every administrator knows that alert notifications are salt of the earth in his day-to-day struggle with myriad of data. Today we will be looking at an example of EventLog alert notifications on Cisco router and how it can point to possible problems ...
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62 Hits

How to migrate PostgreSQL data in Windows Server

Sometimes we are in a need of migrating database to new disk, usually because of the lack of space on the former. PostgreSQL in Windows stores it's files in data folder, in Program Files, in it's usual installation procedure.   In this...
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  433 Hits
433 Hits

NetFlow Analyzer - End Users Traffic Analysis

When thinking about network traffic and security, we usually end up considering NetFlow Analyzers for analytics and monitoring. It allows us to plan our network and detect security issues fast and easy. But the raising concern is also our core need f...
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  590 Hits
590 Hits

5 Reasons for Using NetFlow

Network traffic and network complexity have substantially increased by globalization, virtualization, widespread use of personal devices (BYOD), DDoS attacks and similar trends, bringing up new security issues. Traditional approaches to network monit...
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  1746 Hits
1746 Hits

Multicast accounting configuration using Flexible NetFlow - Part Two

As the problem of multicast flow analysis was addressed in our previous blog , we have distinguished two scenarios – input and output flow accounting configuration. Therefore, during the following demonstration, we will investigate how NetFlow multic...
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  1573 Hits
1573 Hits

Multicast accounting configuration using Flexible NetFlow - Part One

​ With the rapid proliferation of video services, particularly video streaming, deployment of multicast services demands an appropriate monitoring to be in place in order to keep track of this traffic type. Adequate and comprehensive monitoring is pa...
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  1722 Hits
1722 Hits

5 ways to use NetFlow Analyzer for Network Security

The frequency of cyber attacks increased a variety of vectors (e.g. unprotected IoT device botnets, Attack as a Service software, SSL-based attacks, etc.) and their overall sophistication has made them a serious threat to networks around the World. G...
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  2491 Hits
2491 Hits

Main Reasons for Automated Network Security Protection

So, lets analyze some facts... Looking at the usual work tempo and time consuming activities, it is easy to note significant growth of all apps and programs that can save valuable time in different areas.  Same thing happens in network moni...
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  1863 Hits
1863 Hits

Specific traffic patterns monitoring (Facebook, YouTube, Twitter...) that will make your life easier

Enterprise network administrators are facing an increasing number of challenges when it comes to network monitoring. Business critical services must be clearly distinguished from the other traffic classes and always monitored in terms of specific QoS...
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  2301 Hits
2301 Hits

How to rotate Scrum Master role?

Sometimes it may happen that your team finds itself without a dedicated Scrum Master, so very few things are done to improve process of work, which leads to productivity stagnation and decline.   Typically some members spontaneously take over so...
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  1745 Hits
1745 Hits

NetVizura VS NFSEN - Paid vs Free Solution tested

We have made a short comparison between paid NetVizura and free NFSEN software for NetFlow Analysis and here is what we have concluded... Obviosly, small companies that have only few exporters and not a lot of traffic to monitor, would more ofte...
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  1879 Hits
1879 Hits

Free or Paid NetFlow Analyzer?

Let's say you are a network admin responsible for managing growing or distributed network, that you have a need for a more in-depth monitoring of your traffic and events, and now you need to make a first decision about which type of tool you would li...
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  1803 Hits
1803 Hits

All you need to know about Manual Deduplication

In our previous posts we have talked about duplication problem and possible solutions. We have explained how to set up automatic deduplication and hopefully this was helpful. Now we are going to go one step further and explain how to set up manual de...
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  1410 Hits
1410 Hits

When to use Network Traffic Sampling

​In our past blog posts we have already wrote about NetFlow configuration and exporting settings for various situations that you might find yourself in. Now we will go one step further in Flow Analysis and try to help you make up your mind whether to...
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  1672 Hits
1672 Hits

Flow export configuration on Juniper network devices

Juniper first started with Jflow support, similar and compatible to Cisco Netflow standard, and later added support for vendor-neutral IPFIX. Flow export in Juniper terminology refers to inline active flow monitoring. This feature is implemented dire...
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  4288 Hits
4288 Hits

Flow export configuration on Cisco network devices

The topics in our previous posts were mainly related to flow optimization and configuration in terms of achieving optimal results on the flow collector side. The diversity of routers and L3 switches on the market as well as their support of different...
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  2848 Hits
2848 Hits

Exporting NetFlow Traffic to Multiple Servers

Until now we have wrote about different ways and options for exporting and collecting NetFlow traffic. Today we will go one step further in this area...  Often it is necessary to export NetFlow traffic on more than one server (production, develo...
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  2052 Hits
2052 Hits

2 Ways of Exporting Without Netflow Capable Device

​There are situations when you need to get NetFlow statistics, but having a device that does not export Netflow can be a bummer. There is always a solution...  When a network device is not supporting NetFlow protocol, you can use a server with a...
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  1881 Hits
1881 Hits

How to solve duplicated NetFlow caused by multiple exporters

We have already wrote about configuration duplication in the previous post How to configure devices and not duplicate NetFlow.   Now we will help you understand and solve exporters deduplication - what to do when same flow is exported by differe...
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  1870 Hits
1870 Hits

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