Due to changes in the way Citrix XenServer 5.0 update 3 is licensed, the system will only be licensed for 30 days from the install. During this time you will need to register with Citrix and request a fully functional 1 year license.
Please note that if you do not register your system, at the end of 30 days you will not be allowed to power on any virtual machines.
To register your system you will need to do the following:
1. Download and install the latest XenCenter Client. (http://downloads.service.softlayer.com/xen/XenServer-5.0.0u3-XenCenter.msi)
2. Connect to your private network via vpn.
3. Start XenCenter and click "Add New Server" on the top menu, or click "Server" -> "Add..." via the drop down menus.
4. Use the private IP address for the "Hostname", root for "User Name", and your root password for "Password".
5. Once the system is connected to a pop-up should appear for the License Manager alerting you that your license will expire in 30 days. If this does not happen please select "Tools" -> "License Manager..." from the drop down menu.
6. Check your server and click the "Activate..." button on the right side. This will launch a browser pointed to Citrix's registration site. Fill out the form and submit it. You should receive and email shortly with the attached license key.
7. Once you have received save the attachment somewhere easy to find.
8. Back in XenCenter highlight your server in the left hand pane. Click "Server" -> "Install License Key..." from the top menu. This should prompt a dialog box asking for the location of the license key. Please point it to the location you saved it.
According to Citrix this key is good for any number of Citrix XenServer Update 3 systems for 1 year.
30 days prior to the license expiring, you will receive a notice via another License Manager pop-up warning of this. You will follow the same steps to activate a new license.