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Installation Guide
Unica Link prerequisites
Ensure that these prerequisites are met before installing Unica Link.
Link to Proxy Server Documentation
Click on the following link to access Proxy Server documentation in Link 1.1.6:

Installation Guide
- Introduction to Unica Link
  Unica Link is a component that can be installed separately from the Unica application.
- Unica Link prerequisites
  Ensure that these prerequisites are met before installing Unica Link.
  - Unica Link upgrade
    To upgrade Link, the user must uninstall the previous version of Link using the following commands or steps:
  - Installation prerequisites for Linux
    You need Linux for Native and Docker Installation. The system requirements for Linux are as follows:
  - Docker installation prerequisites
  - Native installation prerequisites
    Ensure that these system requirements are met before you perform the Native installation of Unica Link:
  - Microsoft Windows installation prerequisites
    Before you install Link on Microsoft Windows, install Mongo DB Server version 4.0.5 (or higher) on the same computer. By default, Link and MongoDB server is expected to run on the same computer.
  - Link installation prerequisites
    To use Unica Link, you must install Link Runtime server.
  - Enabling authentication with REST API
    Before installing Link or REST API, first enable authentication for the REST API execution time.
  - Link to Proxy Server Documentation
    Click on the following link to access Proxy Server documentation in Link 1.1.6:
- Microsoft Windows installation
  This section describes how to install Link using the Windows Installer.
- Linux Installation
  You can install Unica Link in two modes:
- Setting up Journey and Campaign for Unica Link
- Link Cosmos DB integration
  The purpose of this document is to guide on integrating your web application with Azure Cosmos DB for MongoDB. By following the steps outlined herein, you will seamlessly incorporate Cosmos DB into your application's data storage and retrieval processes.
- Logging
  Logs are produced for your use by Link, the Runtime REST API, and Kafkalink.
- Enabling Unica Link to run on HTTP protocol for Windows and Linux Installation
- Encrypting the password in the properties file
  To enhance security and safeguard sensitive information, encrypt the password stored in the properties file adding a layer of protection to the data.
- Verifying the config.yaml file
  This section describes how to verify the validity of your config.yaml file after making changes in it. When editing the config.yaml file, ensure that the modifications you make are valid. To verify the validity of your config.yaml file after making changes, perform one of the following procedures based on your setup:
- Configuring SSL Certificates for Link
  After installing Link, setup the custom SSL certificates for the Link web UI and the Link runtime application server.
- Troubleshooting
- Known issues
  Summary of known issues in this version of the product.

Link to Proxy Server Documentation

Click on the following link to access Proxy Server documentation in Link 1.1.6:

https://help.hcltechsw.com/hcllink/1.1.6/proxy_server/concept/c_proxy_server_top_lvl.html

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