Linux manageengine netflow analyzer

NetFlow Analyzer Enterprise Edition — Installation and Uninstallation

The Windows download for NetFlow Analyzer is available as an EXE file at https://www.manageengine.com/products/netflow/download.html#ent Download the EXE file for the Central Server to your local machine, and double-click it to start installation.Follow the instructions as they appear on screen to successfully install NetFlow Analyzer on to your machine.

Step1: On the Welcome Screen, Click ‘Next’ to continue.
Step2: Read the License agreement carefully and click ‘Next’ to proceed to the next step.
Step 3: Verify the destination folder and Click ‘Next’ to continue.
Step 4: Select your desired server type.
There are two options for server-type:
1) Central Reporting Server 2) Collector Server
Step 5: Select your desired port and language and click ‘Next’ to continue
Step 6: Provide proxy server host, server port, proxy user- name and password. Click ‘Next’ to continue. Step 7: Choose your desired Program Folder
Step 8: Register for technical support by providing the information in the respective fields in the registra- tion form.
This is an optional form. Click ‘Next’ to continue.
Step 9: Review the Settings information that appears and Click ‘Next’ to begin the installation.
Step 10: Please wait till the installation is completed.
Step 11: Please wait till the files are extracted.
Step 12: The installation procedure is now complete. Click ‘Finish’ to start NetFlow Analyzer as a service.

Linux:

The Linux download for NetFlow Analyzer is available as a BIN file at https://www.manageengine.com/products/netflow/download.html#ent

Collector Installation

Windows

Step 1: On the Welcome Screen, Click ‘Next’ to continue.
Step 2: Read the License agreement carefully and click ‘Next’ to proceed to the next step.
Step 3: Verify destination folder and Click ‘Next’ to continue.
Step 4: Select your desired server type.
There are two options for server-type:
1) Central Reporting Server 2) Collector Server
Step 5: Select your desired port and language and click ‘Next’ to continue.
Step 6: Provide communication details such as Host Name, HTTPs port number etc. for both Central Server & Collector. Click ‘Next’ when you are done.
Step 7: Please enter server details such as Name, user-name and password. Click ‘Next’ to continue.
Step 8: Mention the default SNMP community and port information. This is an optional step.
Click ‘Next’ to continue.
Step 9: Provide proxy server host, server port, proxy user- name and password. Click ‘Next’ to continue.
Step 10: Choose your desired Program Folder.
Step 11: Registration for technical support. An optional form to register yourself for technical support would appear. You may choose to skip this form.
Step 12: Review the information that appears and click ‘Next’ to begin the installation.
Step 13: Please wait till the installation is completed.
Step 14: Once installation is complete, click on ‘Finish’. This will start NetFlow Analyzer as a service.

Linux

The Linux download for NetFlow Analyzer is available as a BIN file at https://www.manageengine.com/products/netflow/download.html#ent

Note: While Installing the collector please give the proper entries in the communication panel and in the proxy server settings so that the collector can communicate with the central server properly.

Once you have successfully installed NetFlow Analyzer, start the NetFlow Analyzer server for central and collector.

Installing NetFlow Analyzer Enterprise Edition on Linux using Console mode/ Silent mode

Central Server

Step 1: Execute ManageEngine_NFA_DE_64.bin with administrator privileges (sudo) and -i console option.

Step 2: Go through the license agreement and enter ‘Y’ to proceed. You can register for technical support by providing the required details. (Name, E-mail ID, Phone, Company Name)

Step 3: Select the location.

Step 4: Choose the installation directory

Step 5: Configure the Webserver and HTTP Ports

Step 6: Verify the installation details and press ‘Enter’ to complete the installation.

Probe Server

Step 1: Execute ManageEngine_NetFlowAnalyzer_Probe_64bit.bin with security privileges (sudo) and -i console option.

Step 2: Go through the license agreement and enter ‘Y’ to proceed. You can register for technical support by providing the required details. (Name, E-mail ID, Phone, Company Name)

Step 3: Select the location.

Step 4: Choose the installation directory, and configure the Webserver and Listener Ports.

Step 5: Verify the installation details, the installation status and press ‘Enter’ to complete the installation.

Starting NetFlow Analyzer Central Server

Windows

Click on Start > Programs > ManageEngine NetFlow Analyzer Central Reporting Server > Central Server.
Alternatively you can navigate to the \bin folder and invoke the run.bat file.

Linux

Navigate to the /bin directory and execute the run.sh file.
When the server is started, a command prompt window opens up showing startup information on several modules of NetFlow Analyzer. Once all the modules have been successfully created, the following message is displayed:

Server started.
Please connect your client at https://localhost

where 8060 is replaced by the port you have specified as the web server port during installation.

Starting NetFlow Analyzer Collector

Windows

Click on Start > Programs > ManageEngine NetFlow Analyzer Collector > Collector Server. Alternatively you can navigate to the \bin folder and invoke the run.bat file.

Linux

Navigate to the /bin directory and execute the run.sh file.
When the server is started, a command prompt window opens up showing startup information on several modules of NetFlow Analyzer. Once all the modules have been successfully created, the following message is displayed:

Server started.
Please connect your client at http://localhost:8060

where 8060 is replaced by the port you have specified as the web server port during installation.

Starting as a Service

Windows

If you have chosen the Start as Service option during installation, NetFlow Analyzer will run as a service on Windows.

Linux

1. Login as root user.
2. Navigate to the \bin directory.
3. Execute the linkAsservice.sh file.
4. Then execute the command systemctl start OpManager.service.

This starts NetFlow Analyzer as a service on Linux.

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Linux manageengine netflow analyzer

NetFlow Analyzer runs in both Windows and Linux, supports NetFlow® versions 5/7/9, sFlow®, cflowd®,J-Flow®, IPFIX®, NetStream®. Following is the list of supported operating systems:

Note: For router and switch specifications refer the Configuring Cisco Devices section of the User Guide.

Database Tuning Parameters

When you find that the client response is slow and the reports are taking longer time to get generated, you can tune a few database parameters to improve the performance of the system. The database parameters for NetFlow Analyzer are tuned to work well with 512 MB of RAM and in cases where you are running with more RAM, you can easily tune the MySQL parameters to extract better performance. This can result in significant improvements in the client response. These parameters can be set in startDB.bat file present in /bin directory (startDB.sh in case of Linux).

The 2 main parameters are the key_buffer_size and the innodb_buffer_pool_size. These values are set to —key_buffer_size=180000000 —innodb_buffer_pool_size=212000000 by default

Note: Please take a back up of this file before you make any changes. In case you are uncomfortable making these changes, please send a mail to so that we can assist you in doing this.

• For a machine running with 1 GB of RAM, you can set these to
  —key_buffer_size=360000000 —innodb_buffer_pool_size=424000000
• For a machine running with 2 GB of RAM, you can set these to
  —key_buffer_size=720000000 —innodb_buffer_pool_size=848000000

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Linux network traffic monitoring

ManageEngine NetFlow Analyzer is a comprehensive network traffic monitoring solution that provides a wide range of bandwidth and network traffic monitoring features. A web-based network traffic monitor, it runs on both Windows and Linux systems and analyzes flow data to track network traffic. NetFlow Analyzer gives you insights into your network’s bandwidth usage by providing metrics for your traffic volume, speed, packets, top talkers, bandwidth utilization, network anomalies, and more.

What do you need in a Linux network traffic monitoring tool?

Being able to monitor the state of every single device in your network at any given point is fundamental to maintaining the health and efficiency of your network infrastructure. A Linux network traffic monitoring tool helps network admins,

How does NetFlow Analyzer monitor your Linux devices?

NetFlow Analyzer’s NetFlow Generator tool passively captures and converts raw network packets into NetFlow packets to help you monitor devices that don’t support flow. With this feature, you can now monitor and analyze network traffic from your Windows and Linux devices as easily as you would monitor your flow-based devices.

Advantages of using NetFlow Analyzer to monitor Linux network traffic

With the free NetFlow Generator tool, you can add and monitor your devices with just a few clicks without having to spend hours configuring them. The Linux network traffic monitor comes with a plethora of reports and customization options that help you monitor Linux network traffic and analyze the data to give you complete visibility into your network.

How does NetFlow Analyzer work as a Linux network traffic monitoring tool?

NetFlow Analyzer’s key real-time Linux network traffic monitoring features include:

• Bandwidth monitoring
• Network traffic analysis
• Application and protocol monitoring
• Multi-vendor support
• Network security

Bandwidth monitoring and network traffic analysis

The Linux network traffic monitor functionalities in NetFlow Analyzer help you monitor bandwidth usage by device, interface, application, or user. With its in-depth bandwidth usage reports, it helps you learn, in real time, who is using your network and why. NetFlow Analyzer monitors and analyzes bandwidth usage patterns and network traffic trends to provide detailed network traffic and forensics reports that make bandwidth management easier and more efficient.

Application and protocol monitoring

NetFlow Analyzer recognizes, classifies, and monitors applications with various technologies like NBAR and CBQoS. With its comprehensive Linux traffic monitoring reports, NetFlow Analyzer helps you gain insights into application usage, and application growth trends to help you anticipate your bandwidth needs. It helps you optimize your network bandwidth to ensure your business-critical applications are prioritized.

Multi-vendor support

NetFlow Analyzer supports devices from Cisco, 3COM, Juniper, Foundry Networks, Hewlett-Packard, Extreme, and other leading vendors. It also supports all top flow formats, such as NetFlow, sFlow, jFlow, IPFIX, Netstream, and AppFlow.

Network security

With its advanced Continuous Stream Mining Engine technology, NetFlow Analyzer serves as an advanced Linux network traffic monitor. The Advanced Security Analytics Module helps you identify network anomalies and security threats like DDoS attacks, port scans, and zero-day intrusions. This helps you identify and troubleshoot network issues before they affect your end users.

More on Linux network traffic monitor

What is Linux network traffic monitoring?

Linux network traffic monitoring is the process of capturing and analyzing your enterprise’s Linux network traffic.

Why should you monitor Linux network traffic?

Gaining insights on network traffic is important in measuring bandwidth usage and managing it. Monitoring your Linux network traffic can help identify bandwidth bottlenecks, top talkers, and other network issues that can affect network performance.

How does a real- time Linux network traffic monitor work?

Most Linux network traffic monitor tools read the /proc/net/dev file to get traffic stats, or use the pcap library for packet capture and then calculate the total size to estimate the traffic load. A Linux network traffic monitoring tool is typically a time-consuming command line tool that require a great deal of preconfiguration. In spite of the complexities, most real-time Linux network traffic monitor tool are simple tools that support a few basic metrics, reports, and report filters.

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