# Upgrading Amazon DCV Access Console on multiple hosts
<a name="upgrading-multiple-hosts"></a>

To upgrade the Handler, Authentication Server, and Web Client components, you must run the following commands. The components can be downloaded and extracted using the steps in [Prepare your environment](prepare-environment-multiple.md).

**Note**  
These components need to be downloaded to each host being used.

## Upgrading the Handler
<a name="upgrading-multiple-handler"></a>

**RHEL, CentOS, Amazon Linux**

1. Connect to the host you set up for the Handler.

1. Move the Handler `.rpm` file you downloaded to the host.

1. Stop the running service.

   ```
   $  sudo systemctl stop dcv-access-console-handler
   ```

1. Upgrade the Handler component.

   ```
   $  sudo yum install -y nice-dcv-access-console-handler*.rpm
   ```

1. Start the Handler component.

   ```
   $  sudo systemctl daemon-reload
   ```

   ```
   $  sudo systemctl restart dcv-access-console-handler
   ```

**Ubuntu, Debian**

1. Connect to the host you set up for the Handler.

1. Move the Handler `.deb` file you downloaded to the host 

1. Stop the running service.

   ```
   $  sudo systemctl stop dcv-access-console-handler
   ```

1. Upgrade the Handler component.

   ```
   $  sudo apt install -y ./nice-dcv-access-console-handler*.deb
   ```

1. Start the Handler component.

   ```
   $  sudo systemctl daemon-reload
   ```

   ```
   $  sudo systemctl restart dcv-access-console-handler
   ```

## Upgrading the Authentication Server
<a name="upgrading-multiple-authentication"></a>

**RHEL, CentOS, Amazon Linux**

1. Connect to the host you set up for the Authentication Server.

1. Move the Authentication Server `.rpm` you downloaded to the host.

1. Stop the running service.

   ```
   $  sudo systemctl stop dcv-access-console-auth-server
   ```

1. Upgrade the Authentication Server component.

   ```
   $  sudo yum install -y nice-dcv-access-console-auth-server*.rpm
   ```

1. Start the Authentication Server component.

   ```
   $  sudo systemctl daemon-reload
   ```

   ```
   $  sudo systemctl restart dcv-access-console-auth-server
   ```

**Ubuntu, Debian**

1. Connect to the host you set up for the Authentication Server.

1. Move the Authentication Server `.deb` you downloaded to the host. 

1. Stop the running service.

   ```
   $  sudo systemctl stop dcv-access-console-auth-server
   ```

1. Upgrade the Authentication Server component.

   ```
   $  sudo apt install -y ./nice-dcv-access-console-auth-server*.deb
   ```

1. Start the Authentication Server component.

   ```
   $  sudo systemctl daemon-reload
   ```

   ```
   $  sudo systemctl restart dcv-access-console-auth-server
   ```

## Upgrading the Web Client
<a name="upgrading-multiple-web-client"></a>

**RHEL, CentOS, Amazon Linux**

1. Connect to the host you set up for the Web Client.

1. Move the Web Client `.rpm` you downloaded to the host.

1. Stop the running service.

   ```
   $  sudo systemctl stop dcv-access-console-web-client
   ```

1. Upgrade Web Client component.

   ```
   $  sudo yum install -y nice-dcv-access-console-web-client*.rpm
   ```

1. Start the Web Client.

   ```
   $  sudo systemctl daemon-reload
   ```

   ```
   $  sudo systemctl restart dcv-access-console-web-client
   ```

**Ubuntu, Debian**

1. Connect to the host you set up for the Web Client.

1. Move the Web Client `.deb` you downloaded to the host.

1. Stop the running service.

   ```
   $  sudo systemctl stop dcv-access-console-web-client
   ```

1. Uninstall the existing Web Client component.

   ```
   $  sudo apt remove -y nice-dcv-access-console-web-client
   ```

1. Upgrade the Web Client component.

   ```
   $  sudo apt install -y ./nice-dcv-access-console-web-client*.deb
   ```

1. Start the Web Client.

   ```
   $  sudo systemctl daemon-reload
   ```

   ```
   $  sudo systemctl restart dcv-access-console-web-client
   ```