Installation instructions for NetFlow Auditor and supported Operating Systems

Linux CentOS Installation

Overview
The following instructions will take you step by step through the CentOS wizard-driven installation process and the required DigiToll NetFlow Auditor -specific settings.

Requirements
CentOS 5.x Installation Files

Refer https://www.centos.org for details

Note that this edition of NetFlow Auditor has only been tested and released for CentOS 5.x

Installation Instructions
To install the CentOS Operating System:

Load CentOS CD into drive and reboot server.
The following screen is displayed:

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Press [ENTER].
The following message is displayed:

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Choose Skip to start CentOS installation process.
The CentOS Installer Start screen:

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Click Next.
Language Selection:

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Select desired language for the installation (e.g. ‘English’), and click Next.
Keyboard Configuration:

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Select desired Keyboard Type (e.g. ‘U.S. English’), and click Next.
you might be prompted with the following message:

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Click Yes to continue.
Hard drive Partitioning:

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Select 'Create custom layout' and click Next.
Disk Partition Setup:

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In the table, highlight the Free Space row, and click New.
The following dialog is displayed:

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In the Add Partition dialog, set the following:

Mount Point: /boot
File System Type: ext3
Size (MB): 100

Then, Click OK.

Disk Setup: 1 new partition is added:

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In the table, highlight the Free Space row, and click New.
The following dialog is displayed:

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In the Add Partition dialog, set the following:

File System Type: swap
Size (MB): it is recommended to enter two times the physical memory size. (e.g. for 2G physical memory, 4G swap is needed)

Then, Click OK.

Disk Setup: 2 new partitions are added:

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In the table, highlight the Free Space row, and click New.
The following dialog is displayed:

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In the Add Partition dialog, set the following:

Mount Point: /
File System Type: ext3
Additional Size Options: Fill to maximum allowable size

Then, Click OK.

Disk Setup: 3 new partitions are added:

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Click Next.
Boot Loader Configuration:

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You can leave as is. Click Next.
Network Configuration:

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In the Network Devices table, highlight the eth0 Device and click Edit.
The following dialog is displayed:

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In the Edit Interface dialog, set the following:

Configure using DHCP: unchecked
IP Address: appropriate numbers (e.g. 192.168.0.206)
Netmask: appropriate numbers (e.g. 255.255.255.0)

IPv6 configuration can be left as it is.

Then, Click OK.

Network Configuration: Network Devices are now updated.

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Tick the 'Active on Boot' for device eth0.

You can choose a desired hostname (e.g. ‘NFA-svr’).

You can configure Gateway and DNS servers as well. Please contact your network administrator for the gateway and DNS server configuration.

Then, click Next.

Region Selection:

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Click the map and select a time zone.
You can also select a time zone from the list:

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Click Next.
Set Root Password:

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Enter a password, re-confirm and click Next.
Software Package Selection:

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Uncheck all the packages and click Next.
About to Install:

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Click Next. This will begin the installation, which may take a few minutes.
A progress bar will display the installation progress.

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Installation Complete:

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Click Reboot. This will reboot the Linux Server. Your Linux Server is ready to run.

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