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HCL Sametime® Administration Guide 12.0.1
Installing
This section provides information on installing the servers for Sametime and Sametime Premium.
Installing Sametime
You can install HCL Sametime Premium and HCL Sametime in a single- or multi-node container environment. Four platforms are supported: Docker, Podman, Kubernetes, and OpenShift.
Installing Sametime in a Docker or Podman environment
The process to install Sametime on Docker and Podman are identical. The installation process detects if you are installing Sametime on Docker or Podman and prompts for the appropriate information.
Configuring container networking with Podman
The network layer does not have DNS resolve available between containers. This topic provides information on the network configurations needed to resolve network or DNS issues in Podman environments.

HCL Sametime® Administration Guide 12.0.1
- Accessibility features for Sametime
  Accessibility features help users who have a disability, such as restricted mobility or limited vision, use information technology products successfully. HCL® strives to provide products with usable access for everyone.
- What's new
  HCL Sametime and HCL Sametime Premium 12.0.1 provide many new features, enhancements and fixes to servers and clients. Additional releases to version 12.0.1 also provides updates to the product.
- Planning
  This section describes the system requirements and server configurations needed for HCL Sametime and HCL Sametime Premium.
- Installing
  This section provides information on installing the servers for Sametime and Sametime Premium.
  - Installation road map
    The installation road map lists the high-level steps for installing your product. Reviewing the high-level steps before you start the installation process helps you be prepared when prompted for information during the installation.
  - Installing MongoDB
    The MongoDB Community Server can be downloaded from the MongoDB website. You can install MongoDB on Windows and Linux platforms. For information on MongoDB about its purpose for Sametime and deployment options, see mongodb.html.
  - Installing Sametime
    You can install HCL Sametime Premium and HCL Sametime in a single- or multi-node container environment. Four platforms are supported: Docker, Podman, Kubernetes, and OpenShift.
    - Information to provide during installation
      During the install process, you are prompted for information used to tailor the installation for your environment.
    - Installing Sametime in a Kubernetes environment
      A Sametime deployment on Kubernetes requires a properly configured cluster consisting of a minimum of four nodes: a control plane and three worker nodes with an Ingress Controller.
    - Installing Sametime in a Docker or Podman environment
      The process to install Sametime on Docker and Podman are identical. The installation process detects if you are installing Sametime on Docker or Podman and prompts for the appropriate information.
      - Installing Docker
        This section provides information on how to install Docker.
      - Installing Sametime on Docker or Podman
        Installing Sametime involves starting the install procedure and specifying configuration information for the server, such as the credentials, the ports, MongoDB, and LDAP that the server uses.
      - Defining extra hosts for Docker deployments
        Extra hosts for Docker deployments can be defined when there are network or DNS issues. Defining extra hosts is optional and not a requirement to ensure the connections are successful.
      - Configuring container networking with Podman
        The network layer does not have DNS resolve available between containers. This topic provides information on the network configurations needed to resolve network or DNS issues in Podman environments.
  - Installing Sametime clients
    Sametime clients can be installed on a Windows or Mac machines.
- Configuring
  This section provides information on configuring the HCL Sametime server. Configuration tasks are dependent on the deployment environment.
- Securing
  This section provides information on securing your HCL Sametime environments.
- Administering
  This section provides information on administering on Sametime environments.
- Troubleshooting
  This section provides information on troubleshooting and supporting Sametime environments.
- Uninstalling Sametime
  In the event that Sametime must be removed, follow the procedure for the platform that Sametime is installed on.
- Migrating and Upgrading
  This section provides information on migrating data from an earlier release to Sametime 12.
- Notices

Configuring container networking with Podman

The network layer does not have DNS resolve available between containers. This topic provides information on the network configurations needed to resolve network or DNS issues in Podman environments.

Before you begin

Ensure that the podman-compose version is 1.0.4 or higher. To update podman-compose, run the following command.

curl -o /usr/local/bin/podman-compose https://raw.githubusercontent.com/containers/podman-compose/devel/podman_compose.py
chmod +x /usr/local/bin/podman-compose

About this task

If you are using Red Hat® Enterprise Linux® and Podman, you must configure the RHEL nodes to ensure the connections are successful.

Note: All commands provided require running as ROOT or SUDO access. If not running as root user, preface the commands in steps 1 and 2 with sudo.

Procedure

Run the command to install Netavark.
```
dnf install netavark
```
Place the containers.conf file in edit mode.
```
vi /etc/containers/containers.conf
```
After installation, migrate all your containers to use Netavark by running this command:
```
network_backend = "netavark"
```
Do a force reset.
```
podman system reset --force
```

Bind Sametime to port 443.

sysctl net.ipv4.ip_unprivileged_port_start=443

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