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Installation, Deployment, and Upgrade
Installing HCL Discover involves planning and preparing your environment, installing and configuring prerequisite software, obtaining the HCL Discover installation files, and running the HCL Discover installer.
Installation and Deployment Manual
Planning the installation
Planning for HCL Discover before introducing its software into your enterprise information system helps ensure that the system you implement meets your needs.
System requirements for installing HCL Discover
In this section we will cover what operating system, software and hardware requirements need to be met to install HCL Discover.
User account requirements
HCL Discover user accounts include account permissions, NT authentication, and Network Capture Application accounts.

Installation, Deployment, and Upgrade
Installing HCL Discover involves planning and preparing your environment, installing and configuring prerequisite software, obtaining the HCL Discover installation files, and running the HCL Discover installer.
- Installation and Deployment Manual
  - Planning the installation
    Planning for HCL Discover before introducing its software into your enterprise information system helps ensure that the system you implement meets your needs.
    - System requirements for installing HCL Discover
      In this section we will cover what operating system, software and hardware requirements need to be met to install HCL Discover.
      - Operating system requirements
        Make sure that the machines on which you install HCL Discover meet the operating system requirements documented here.
      - Software requirements
        Make sure your installation environment meets the software requirements documented here.
      - Hardware requirements
        For optimal performance, install HCL Discover on dedicated hardware.
      - User account requirements
        HCL Discover user accounts include account permissions, NT authentication, and Network Capture Application accounts.
  - Preparing to install the software
    Preparing to install HCL Discover involves assessing your current IT resources, determining and cataloging the HCL Discover component-to-server assignments, installing and configuring prerequisite software and preparing the servers and your network environment to accept HCL Discover.
  - Installing HCL Discover
    Installing HCL Discover involves obtaining the installation files for HCL Discover and then running the product installers.
  - ELK Installation
    To access the Kibana Dashboard and the Elastic search, you must install the ELK RPM.
  - Ctree Server License constraints
    The Ctree Server License constraint enforces the processor affinity mask of DB processes to four CPUs or lesser.
  - Adding new events and modifying associated dimensions for UAParser
    Once the Discover Portal is up and running, add new events and modify associated dimensions, related to UAParser, by executing the following steps on the Discover Portal server:
- Discover Network Capture Application Manual
- HCL 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

User account requirements

HCL Discover user accounts include account permissions, NT authentication, and Network Capture Application accounts.

Account permissions

As a recommended best practice, give any account used by a Windows-based HCL Discover service Local System permissions on the server.

Using non-local system accounts for running HCL Discover software is not supported. Running HCL Discover services with permissions other than Local System permissions might cause problems, such as failures to connect, write errors, and unexpected time-outs.

NT authentication

When NT authentication is enabled for the HCL Discover system, HCL Discover services must run under an NT domain account with appropriate privileges. Additional configuration may be required.

Network Capture Application (DNCA) accounts

The HCL Discover DNCA runs on the Linux operating system. During DNCA installation, the dncauser account is created, which is used for running all DNCA services.

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