NetFlow Traffic Analyzer 4.4 Release Notes

Release date: May 11, 2018

These release notes describe the new features, improvements, and fixed issues in NetFlow Traffic Analyzer 4.4. They also provide information about upgrades and describe workarounds for known issues.

If you are looking for previous release notes for NetFlow Traffic Analyzer, see Previous Version documentation.

IMPORTANT: Microsoft SQL Server 2016 SP1 or later is required for the Flow Storage database. See NTA 4.4 System Requirements.

New features and improvements in NTA 4.4

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NTA 4.4 offers new features and improvements compared to previous releases of NTA.

NetFlow Traffic Analyzer uses a new database for storing flow data

Starting with version 4.4, NTA uses a Microsoft SQL server to host your NTA Flow Storage database for storing flow data. NTA 4.0 through 4.2.3 utilized a flat file database called FastBit for flow storage, which was included in the installer. The major difference is in installing the NTA Flow Storage database, which can be installed on one SQL server together with the Orion database. For more information, see NTA 4.4 System Requirements and NTA 4.4 Adoption: Frequently Asked Questions.

Support for TLS 1.2

Transport Layer Security (TLS) is a cryptographic protocol that provides communications security for computer networks. The primary target of the TLS protocol is to provide privacy and data integrity between two or more communicating applications.

Starting with Orion Platform 2017.1, some SolarWinds Orion Platform products support running solely on TLS 1.2, with versions TLS 1.1 and TLS 1.0 disabled. As of version 4.4, NTA supports only TLS 1.2 enabled.

Port 0 monitoring

Starting with version 4.4, it is possible to monitor TCP or UDP port 0. Use SolarWinds NTA 4.4 to monitor and report on malicious traffic running on port 0. After you install or upgrade NTA to version 4.4, you will see a new application called Port 0 in the NetFlow Settings, under Manage Applications and Service Ports. This application covers all traffic between TCP/UDP port 0 and any other TCP/UDP port.

Other improvements

For new features and improvements in Orion Platform 2018.2, see the Orion Platform 2018.4 Release Notes.


New customer installation

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For information about installing NetFlow Traffic Analyzer, see the SolarWinds Orion Installer.

How to upgrade

If you are upgrading from NTA 4.2.3 or later, use the SolarWinds Orion Installer to upgrade one or more Orion Platform products simultaneously.

If you are upgrade from an earlier version, use the following resources to plan and implement an upgrade to NTA 4.2.3. Then use the SolarWinds Orion Installer to complete the upgrade.


Fixed issues

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NTA 4.4 fixes the following issues.

Case number Description

1325542

The Configuration wizard keeps running during the upgrade from NTA 4.1.2 to NTA 4.2.1.

00043998

After you click Edit, the NetFlow resources on the NPM Summary page open properly and don't rapidly update.

1258577

When you open the Top XX Resources on the NTA Summary page, the settings page no longer repeatedly flashes in the browser.

1309675

After you upgrade to NTA 4.2.2, the Last 25 Traffic Analyzer Events resource loads properly.

1206020

Last 25 Traffic Analyzer Events chart is renders without errors.

1198868

Data is available in the NetFlow Endpoint page after navigating from the Conversations page.

1170662

NTA is showing all data when you drill down to the Endpoint details from the Top Conversations resource.

1169255

Data from the FlowEngines tables match the data from the dbo.Engines table.

1148292

NetFlow listener no longer fails.

1140769

In NTA 4.2.1, the Last 25 Traffic Analyzer Events resource loads properly.

1112673

Configuration wizard keeps running during an upgrade.

1064439

Website configuration no longer fails during the upgrade of the additional polling engine with NTA and Flow Storage Database installed on it.

935757

When you configure a scheduled and filtered Conversation resource report through Report Scheduler that excludes some conversations, the email is sent and the graphs show up.
896338
The Top 10 Autonomous System resource does not show rows with ID=0.

692568

Custom SQL reports no longer break after the upgrade to NTA 4.x.

1353844

Database maintenance does not delete resolved hostnames in flows.

00079404

On Demand DNS resolving does not populate NetFlow endpoints tables. The tables in the database are not growing rapidly anymore.

Fixed issues in Orion Platform 2018.2

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For fixed issues in Orion Platform 2018.2, see the Orion Platform Release Notes.


Known issues

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The Configuration wizard doesn't load after an upgrade from NTA 3.11 to NTA 4.2.3
Issue: The Configuration wizard gets stuck on the NTA Flow Storage Configuration screen where it requires to configure the remote NTA Flow Storage database instead of installing a local version.
Resolution/Work-around: Uninstall NTA or configure a remote NTA Flow Storage database, running on the FastBit database engine.

End of life

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See the End of Life Policy for information about SolarWinds product lifecycle phases. For supported versions and EoL announcements for all SolarWinds products, see Currently supported software versions.


Deprecation notices

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This version of NetFlow Traffic Analyzer deprecates the following platforms and features.

Deprecated platforms and features are still supported in the current release. However, they will be unsupported in a future release. Plan on upgrading deprecated platforms, and avoid using deprecated features. Customizations applied to a deprecated feature might not be migrated if a new feature replaces the deprecated one.

For information about supported version of SolarWinds products, see Currently supported software versions.

Type Deprecation
Windows Server 2012, 2012 R2 This software is deprecated as of this release. Although you can install Orion Platform 2018.2 products on Windows Server 2012 and 2012 R2, Windows Server 2012 and 2012 R2 are deprecated and will not be supported in future versions of the Orion Platform. SolarWinds strongly recommends that you upgrade your operating system to Windows Server 2016 or later at your earliest convenience.
SQL Server 2012 This software is deprecated as of this release. Although you can use SQL Server 2012 with Orion Platform 2018.2 products, this version is deprecated and will not be supported on future versions of the Orion Platform. SolarWinds strongly recommends that you upgrade to Microsoft SQL Server 2016, 2017, or later at your earliest convenience.
All Active Alerts resource

The current All Active Alerts resources is deprecated. The resource is replaced with a new, enhanced widget. You can continue to use the deprecated, legacy resource.

Pre-configured resources

(Availability, Min/Max/Average, Percent Loss, etc.)

Most pre-configured resources are deprecated as of this release. The resources will be compressed into single, configurable widget in a future release.
Last XX resources Pre-configured Last XX resources are deprecated as of this release. They will be replaced with a single, configurable widget in a future release.
Managed Nodes

The current Managed Nodes page is deprecated as of this release. A new version is available, but you can continue to use the legacy page.

SolarWinds recommends migrating to the new Managed Nodes page at your earliest convenience.

Customize Views The Customize View page is deprecated as of this release. Functionality is migrating to the Customize Page feature.

Search resources

(legacy search, search on thwack, search for nodes, etc.)

All search resources are deprecated as of this release. Use the integrated search in the global navigation.

Legal notices

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