|
| 1 | +--- |
| 2 | +title: "Prerequisites" |
| 3 | +linkTitle: "Prerequisites" |
| 4 | +description: "Information about the prerequisites required before starting the upgrade." |
| 5 | +weight: 10 |
| 6 | +--- |
| 7 | + |
| 8 | +# {{< param title >}} |
| 9 | + |
| 10 | +The prerequisites required to be considered before starting the upgrade. |
| 11 | + |
| 12 | +## Encryption Requirements |
| 13 | + |
| 14 | +{{% alert title="Note" %}}This step is only required if the load balancer installed is the load balancer that is included with the {{% ctx %}} software.{{% /alert %}} |
| 15 | + |
| 16 | +### Retrieve Existing Encryption Key |
| 17 | + |
| 18 | +On one of the Application Servers: |
| 19 | + |
| 20 | +1. On the Start menu, choose `Run`. |
| 21 | +1. In the open box, enter `regedit.exe`. You must have administrative credentials to run regedit.exe. |
| 22 | +1. In the Registry Editor, locate the registry value `Key` which can be found at the following location `HKEY_LOCAL_MACHINE\SOFTWARE\Innovise\Cerberus`. |
| 23 | +1. Copy the value of `Key` and save it to a known location. |
| 24 | + |
| 25 | +### Add Encryption Key to Load Balancer Server |
| 26 | + |
| 27 | +On the Load Balancer Server: |
| 28 | + |
| 29 | +1. On the Start menu, choose `Run`. |
| 30 | +1. In the open box, enter `regedit.exe`. You must have administrative credentials to run regedit.exe. |
| 31 | +1. In the Registry Editor, navigate through the subkeys to `HKEY_LOCAL_MACHINE\SOFTWARE\Innovise\Cerberus`. |
| 32 | + |
| 33 | + If any of the subkeys do not exist create them, repeating for each subsequent subkey: |
| 34 | + |
| 35 | + 1. Right click on the parent subkey. |
| 36 | + 1. Select `New`. |
| 37 | + 1. Select `Key`. |
| 38 | + 1. Set the name to be the subkey that you are creating e.g. `Innovise`. |
| 39 | + |
| 40 | +1. Under the `Cerberus` subkey locate the registry value `Key`. |
| 41 | + |
| 42 | + If the registry value does not exist create it: |
| 43 | + |
| 44 | + * Right click in the right window. |
| 45 | + * Select `New`. |
| 46 | + * Select `String`. |
| 47 | + * Set the name to be `Key`. |
| 48 | + |
| 49 | +1. Set the value of `Key` to be the value copied from the Application Server in Step 4 of [Retrieve Existing Encryption Key][]: |
| 50 | + |
| 51 | + 1. Double click on the registry value `Key` to open the Edit dialog. |
| 52 | + 1. Set the value. |
| 53 | + 1. Click `OK`. |
| 54 | + |
| 55 | +## Next Steps? |
| 56 | + |
| 57 | +1. [Upgrade Application Servers and Load Balancer][] |
| 58 | + |
| 59 | +[Retrieve Existing Encryption Key]: {{< url path="Cortex.Guides.UpgradeCortex.2024.9to2024.11.MultipleServerWithHA.RetrieveAppServerEncryptionKey" >}} |
| 60 | +[Upgrade Application Servers and Load Balancer]: {{< url path="Cortex.Guides.UpgradeCortex.2024.9to2024.11.MultipleServerWithHA.UpgradeApplicationAndLoadBalancerServers" >}} |
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