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Installation, Deployment, and Upgrade
Installing Unica Discover involves planning and preparing your environment, installing and configuring prerequisite software, obtaining the Unica Discover installation files, and running the Unica Discover installer.
Discover Network Capture Application Manual
Performance Measurement
Performance measurement provides details on the Network Capture software performance and timestamp measurements.
Factors Affecting Timestamp Values
The following factors must be considered when evaluating timestamps.
Hits without Timestamps
If a hit is received with improperly formatted or incomplete timestamp information, the DNCA does not generate these associated timestamps.

Installation, Deployment, and Upgrade
Installing Unica Discover involves planning and preparing your environment, installing and configuring prerequisite software, obtaining the Unica Discover installation files, and running the Unica Discover installer.
- Installation and Deployment Manual
- Discover Network Capture Application Manual
  - Discover Network Capture Application Overview
    Network Capture Application from Discover captures and records the complete interaction between the visitor and the web application environment by using a network tap or network switch spanning port. The Network Capture Application software features the following benefits:
  - Installing the Network Capture Application
    The following instructions can be used to assist the installation of your Network Capture Application software.
  - Configuring the DNCA
    The Unica Discover Network Capture Application can be configured through a web-based console or through the configuration files that are stored on the DNCA server. The following information guides you on how to configure the DNCA.
  - Upgrade for DNCA
    It is recommended that you always use the latest version of the Unica Discover Network Capture Application suitable for your version of Unica Discover.
  - Packet Forwarder Overview
    The Packet Forwarder is used to capture and forward hits to a cloud-based DNCA that is operating on a virtual machine.
  - SSL Keys
    For decrypting transmissions by using the SSL protocol, the Unica Discover Network Capture Application must be provided the SSL keys in use in the transaction stream.
  - Performance Measurement
    Performance measurement provides details on the Network Capture software performance and timestamp measurements.
    - Timestamp overview
      You can use timestamp values to analyze performance of the DNCA.
    - Example timestamps in the request
      The following example values is displayed in the request after the DNCA generates its timestamps.
    - Factors Affecting Timestamp Values
      The following factors must be considered when evaluating timestamps.
      - Timestamps in ReqCancelled Hits
        When a request is cancelled either by the visitor or the server, timestamps may not be inserted as normal based upon the time of cancellation.
      - Hits without Timestamps
        If a hit is received with improperly formatted or incomplete timestamp information, the DNCA does not generate these associated timestamps.
    - Testing Discover Processing Performance
      You can use the following test to check how quickly Discover is processing hits. In an ideal system, the length of time between the DNCA capturing a hit and it appearing in the Short Term Canister is a few seconds.
    - Reporting
      Reports that are based on timestamp information that is captured and computed by Discover can be configured and reviewed through the Discover Portal.
  - Configuring DNCA on Red Hat Enterprise Linux™ (RHEL)
    The following sections contain important information for configuring DNCA in a Red Hat Enterprise Linux™ environment:
  - DNCA monitoring
    You can monitor the passive capturing to diagnose performance issues.
  - Overview of DNCA maintenance
    The maintenance utility performs routine maintenance and logging tasks for Discover DNCA. You can use the utility to help maintain the ability of the DNCA to perform DNCA.
  - DNCA frequently asked questions (FAQ)
    The following content contains frequently asked questions or scenarios that can be used to help isolate or fix an issue with your Network Capture Application.
  - Downloading Privacy Configuration
  - Enabling web console access through a single IP address
    You can specify a single IP address which can access the web console. Limiting access to a single IP address helps to prevent unauthorized access through an unknown system.
  - Applying authentication when accessing the web console
    You can improve security by enabling authentication to the web console.
- Unica Discover Session Archiving Installation Guide
  As you prepare for an installation, you need to gather some items, review hardware and software requirements, and then you can perform the installation.
- Discover Upgrade Manual

Hits without Timestamps

If a hit is received with improperly formatted or incomplete timestamp information, the DNCA does not generate these associated timestamps.

About this task

When the hit is passed to the Processing Server for evaluation, the Processing Server applies a timestamp value of 01/01/1970 to the hit. The hit is then written to a session file with the same timestamp.

Each hour, the Processing Server deletes session archive files that are older than the number of days of data that is configured to be retained in the Processing Server. So, the hit is automatically deleted every hour.

The number of days of data that is retained by the Processing Server is defined in the Canister Services tab of Canister configuration in the Discover Management System.

In addition to malformed or missing timestamps, the following types of hits cannot have timestamps:

Procedure

Discover system statistics hits submitted by various Discover components to report on their status cannot be filtered out of the Canister capture stream by the Session Router session agent.

For more information about these hits, see "System Statistics" in the Unica Discover Administration Manual.
See "Session Router Session Agent" in the Unica DiscoverConfiguration Manual.

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