The server discovery function uses the Asset Profile database to discover different server types that are based on port definitions. Then, you can select the servers to add to a server-type building block for rules. 

The server discovery function is based on server-type building blocks. Ports are used to define the server type. Thus, the server-type building block works as a port-based filter when you search the Asset Profile database.

Using properly defined servers and host definition building blocks will allow for improved QRadar tuning, and to avoid false positives.

In this video, you learn how to perform server discovery and manage host definition building blocks.

IBM QRadar SIEM alerts to suspicious activity by creating offenses. An offense contains and links to information helpful to investigate it, such as events, flows, and asset profiles. Many offenses turn out to be false positives, and some false positives can be prevented by properly tuning the QRadar configuration.

The QRadar network hierarchy can cause false positives if it does not completely reflect which IP address ranges are local.

In this video, you learn how to change the network hierarchy based on the conclusion that an offense is a false positive.

Security profiles define the networks, log sources, and domains that a user can access. QRadar includes one default security profile for administrative users. The Admin security profile includes access to all networks, log sources, and domains. Before you add new user accounts, you must create more security profiles to meet the specific access requirements of your organization. In this video, you learn about security profiles and how to manage them in QRadar.

This course explains how to use the QRadar SIEM Tuning Report, which lists the rules that are being matched most frequently over a specific time period.

A user role defines the functions that a user can access in IBM QRadar. During the installation, two default user roles are defined Admin and All. Before you add user accounts, you must create the user roles to meet the permission requirements of your users. In this course you learn about user roles and how to manage them in QRadar.

Managing the configuration of false positives can help minimize the impact on legitimate threats and vulnerabilities in QRadar. 

In this course, we demonstrate how you can tune false positive events and flows to prevent them from creating offenses in QRadar.

You can back up and recover IBM QRadar configuration information and data by using the backup and recovery feature to back up your event and flow data.

The script that is used to install SSL certificates in QRadar has changed with the introduction of Version 7.3.

This video demonstrates how to replace the SSL certificate in QRadar Versions 7.2 and 7.3.

The IBM QRadar App For Splunk Data Forwarding allows you to forward events from your Splunk Deployment to QRadar. Simply enter the IP of your Splunk instance, discover what data your Splunk instance is collecting, and then point and click to start forwarding your data to QRadar, enabling more security use cases. The app works with both the universal forwarder and heavy forwarder.

This video explains how you configure QRadar SIEM to ingest event logs from a deployed Splunk instance.

Importing a backup archive is useful if you want to restore a backup archive that was created on another IBM Security QRadar host.

When you install a QRadar WinCollect managed agent, you can run into either an authentication or a communication problem. In this video you learn how to troubleshoot this type of situation.

In this video, you learn how to configure a Linux system to send syslog information to QRadar.

This video provides information for troubleshooting expensive rules in QRadar. The topics in this video include the following:

• Diagnose the problem by checking log files
• Calculate the threshold
• Is this custom rule expensive?
• Performance degradation
  

By default, IBM® Security QRadar® creates a backup archive of your configuration information daily at midnight. The backup archive includes your configuration information, data, or both from the previous day. You can customize this nightly backup and create an on-demand configuration backup, as required.

In this video, you learn how to translate a saved search from either the Log or Network activity tab into an AQL (Ariel Query Language) search string, which can be copied to the clipboard.

WinCollect 7.2.5 enables TLS v1.2 communication from the agent. However, network scans will show QRadar vulnerabilities due to listening and accepting for older TLS connections from WinCollect Agents. This server-side Console procedure informs administrators how to disable older TLS protocol options.

You can back up and recover IBM QRadar configuration information as well as event and flow data by using the backup and recovery feature.  This video demonstrates how you can identify a missing backup file in QRadar 7.3.2.

By default, IBM® Security QRadar® creates a backup archive of your configuration information daily at midnight. The backup archive includes your configuration information, data, or both from the previous day. You can customize this nightly backup and create an on-demand configuration backup, as required.

The user account defines the unique user name that is used to log in to QRadar. It specifies, which user role, security profile, and tenant assignments the user is assigned to. When you initially configure your system, you must create user accounts for each person who requires access to QRadar. In this course, you learn about users and how to manage them in QRadar.

QRadar Log Source management can be very time consuming, especially if you have to manage a large number of log sources. By using the QRadar Log Source Management App bulk editing capabilities, you can save a substantial amount of time. In this video, we explain and demonstrate how you can best utilize bulk editing when you have to apply changes to many log sources at one time.

The Microsoft Security Event Log over MSRPC protocol is a possible configuration for QRadar to collect Windows events without the need of a local agent on the Windows host. The protocol leverages Microsoft's implementation of DCE/RPC, which is commonly referred to as MSRPC. The MSRPC protocols offers agentless, encrypted event collecting that provides higher event rates than the default "Microsoft Windows Security Event Log" protocol, which uses WMI/DCOM for event collection.

This video demonstrates how to configure a Microsoft Security Event Log over MSRPC Log Source.

This video explains how to configure a new TLS Syslog log source in IBM QRadar.

Configure a data obfuscation profile to prevent unauthorized access to sensitive or personally identifiable information in QRadar 7.3.2. Data obfuscation is the process of strategically hiding data from QRadar users. You can hide custom properties, normalized properties, such as user names, or you can hide the content of a payload, such as credit card or social security numbers.

When data obfuscation is configured on an IBM QRadar system, the masked version of the data is shown throughout the application. You must have access to both the corresponding keystore and the password to deobfuscate the data so that it can be viewed.

• How to deobfuscate events in QRadar
  
• How to set an obfuscation session key
• How to automatically deobfuscate an event in the Console
• How to deobfuscate an event in the Console