Welcome
Installation
Everything you need to know to install HCL Link.
HCL Link design data
The documentation provided here describes data backup, data restoration, and data migration of HCL Link design data.
Design data backup and migration
Overview of backing up and restoring, or migrating data used by Link for design activities.
MongoDB migration for Design Server
Migration procedure
The following two scenarios are supported by this migration process:
To upgrade MongoDB from 8.2.3 to 8.2.6 (in-place upgrade)

Introduction
Congratulations on your selection of HCL Link as your data integration solution!
What's new
Learn about the new and changed functions and features in HCL Link version 1.3.2.0.
Release notes
Read the latest release specific information for HCL Link version 1.3.2.0.
System requirements
A complete desciption of the hardware and software requirements for both Windows and Linux systems.
Installation
Everything you need to know to install HCL Link.
- Windows installer
  This documentation describes how to install the HCL Link using the Windows Installer.
- Linux installation
  You have the choice of three installation types: Native, Docker, and Podman.
- The Link configuration file config.yaml
- Using the OneDB wire listener as a MongoDB server
  The OneDB wire listener may be used in place of a MongoDB server when it is suitably configured.
- Link Cosmos DB Integration
- Customizing the Trace
- HCL Link design data
  The documentation provided here describes data backup, data restoration, and data migration of HCL Link design data.
  - Design data storage
    This documentation describes data stores used by Link for design activities, and data storage configuration.
  - Design data backup and migration
    Overview of backing up and restoring, or migrating data used by Link for design activities.
    - MongoDB database operations
    - MongoDB migration for Design Server
      - Supported migration scenarios
      - About the migration script
      - Migration procedure
        The following two scenarios are supported by this migration process:
        To upgrade MongoDB from 4.0.5 to 8.2.3 (default product upgrade)
        To upgrade MongoDB from 8.2.3 to 8.2.6 (in-place upgrade)
    - Filesystem data backup and restore
- Configuring SSL certificates for Link
  After installing Link, setup the custom SSL certificates for the Link web UI and the Link runtime application server.
Administration
Here you will find the tasks that are required for administration of your HCL Link product.
Projects
A project is a container for HCL Link artifacts.
Services
Service definitions define REST services and the endpoints of a service. This guide provides step-by-step instructions for creating, importing, and managing services using the system interface, following Microsoft standards.
Connectors
This documentation describes the connectors and how they are used.
Packages
Servers
This documentation contains a description of the server groups and servers.
Variables
The variables described here include Configuration variables, flow variables, and cache variables.
Dashboards
A description of HCL Link dashboards, including the Server dashboard and the Kibana dashboard.
Runtimes
Descriptions of Link runtime services.
Resource Adapters
About the HCL Link Resource Adapters, and how to use them.
Cloud Native Link
Cloud Native Link refers to the HCL Link product installation on a Kubernetes cluster.
Reference
This documentation provides HCL Link reference information.
Notices

To upgrade MongoDB from 8.2.3 to 8.2.6 (in-place upgrade)

Procedure

Stop the Link service.
Run the upgrade_mongo.sh script and set the --keep-container parameter to true. For example:
```
./upgrade_mongo.sh --target-version=8.2.6 --old-version=8.2.3 --data-dir=/opt/data --keep-container=true
```
Restart the Link service.