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Release of the QRadar 7.4.3 ISO (

Release Notes


A list of the installation instructions, new features, and resolved issues for the release of IBM Security QRadar 7.4.3. These release notes apply to QRadar, QRadar Vulnerability Manager, QRadar Risk Manager, and QRadar Network Insights. These instructions are intended for administrators who want to install QRadar 7.4.3 by using an ISO file.


Known issues in QRadar 7.4.3


Authorized Service tokens cannot be used after configuration restore

If you use the QRadar Data Synchronization app to perform a configuration restore, Authorized Service tokens cannot be used. For more information, and possible workarounds, see IJ33228.

AQL searches are corrupted after a Content Management Tool import

If you use the Content Management Tool (CMT) to import an AQL saved search, the search might be corrupted. For more information, see IJ32889.

Saved searches fail when Content Management Tool import changes properties
If you use the Content Management Tool (CMT) to import an AQL saved search, the search might change a property to the wrong property type, and the search fails. For more information, see IJ32874.
Flush key error messages in log for managed hosts
Repeating 'ErrorStream' messages appear in var/log/qradar.log, and in managed hosts that attempt to connect to other managed hosts over port 22. For more information, see IJ33650.

Resolved issues

For a list of APAR links of resolved issues in QRadar 7.4.3, see Authorized Program Analysis Reports.

Some APAR links might take 24 hours to display properly after a software release is posted to IBM Fix Central.

What's new

For information on what's new in QRadar 7.4.3, see the following information:

About this installation

These instructions are intended to assist you when you install QRadar 7.4.3 by using an ISO file. This ISO can install QRadar, QRadar Risk Manager, QRadar Vulnerability Manager, and QRadar Network Insights products to version 7.4.3.

See QRadar: Software update check list for administrators for a list of steps to review before you update your QRadar deployment.

Part 1. Installing the QRadar 7.4.3 ISO

These instructions guide you through the process of installing QRadar 7.4.3.

Important: You can use the verify signature tool to validate the integrity of your downloads from IBM Fix Central. For more information, see How to verify downloads from IBM Fix Central are trusted and code signed.


  1. Download the QRadar 7.4.3 ISO (5 GB) from the IBM Fix Central website:

    IMPORTANT: QRadar Incident Forensics uses a unique ISO file to install 7.4.3. See the Fix Central page for that product to download the correct file.

  2. Use SSH to log in to the Console as the root user.
  3. To run the ISO installer on the Console, type the following command: /media/cdrom/setup

    Important: Installing QRadar 7.4.3 should take approximately 2 hours on a Console appliance.

  4. Wait for the Console primary update to complete.

Note: In QRadar 7.3.1 Patch 6, a kernel update was introduced to address issues with appliances failing to log in or list unit files. These issues could prevent the appliance from rebooting. This new kernel does not take effect until the appliance is rebooted. You might need to reboot your system manually for the kernel update to take effect.

To work around this issue, you must perform a restart of the appliance. To do this, type the reboot command, or use Integrated Management Module (IMM).


A summary of the ISO installation advises you of any issues. If there are no issues, you can now SSH to managed hosts and start the installer on each host to run the setup in parallel.

Part 2. Installation wrap-up

  1. After all hosts are updated, advise your team that they must clear their browser cache before logging in to QRadar SIEM.
  2. To unmount the /media/cdrom directory on all hosts, type:
    /opt/qradar/support/ -C -k “umount /media/cdrom"
  3. Delete the ISO from all appliances.
  4. If you use WinCollect agents version 7.2.6 or latest, you must reinstall the SFS file on the QRadar Console. This is due to issues where the ISO replaces the SFS on the Console with WinCollect 7.2.5 as described here: APAR IV96364. To install the latest WinCollect SFS on the Console, see the WinCollect release notes at WinCollect 101.
  5. Review any static routes or customized routing. As mentioned in the administrator notes, all routes were removed and will need to be reconfigured after the upgrade completes.
  6. Review any iptable rules that are configured to see if the interface names that have changed in QRadar 7.4.3 due to the Red Hat Enterprise 7 operating system updates affect them. Update any iptables rules that use Red Hat 6 interface naming conventions.

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Document Information

Modified date:
23 September 2021