This is how you request and install (+bind) a SSL certificate for example Citrix Webinterface.
Before you start you must now the external DNS name of your webinterface. In this case I use portal.company.nl
Test to make sure the webserver is responding and the firewall is configured. You notice a SSL warning/error. Something like this :
(The following screendump is a Firefox warning in Dutch 
)
Now go to your Webinterface server and open IIS manager :
Go to the servername in the left pane, select Server Certificates in the middle pane and…
..select Create Certificate Request in the right pane.
Fill in the following screens :
Make sure the common name equals the name of your Webserver (Webinterface) on the Internet, for example portal.company.nl (For security reasons I greyed out some of the information in the screendumps)
Make sure you select at least 2048 bits. None of the SSL providers don’t accept anything less.
Provide a name for the certificate request file. In this file you will find the CSR. You will have to give this to your SSL provider. When you have done that, you can complete your Certificate Request in the same screen, only one option lower :
Unzip the file you received from your SSL provider and select next :
(Make sure that your friendly name is spelled correctly)
After this step your new certificate is imported :
Now you have to bind this certificate to the right port :
Go to the default website, select SSL settings and choose in the right pane the option bind. Select port 443 and your newly imported certificate. Now stop/start your (web) services and you are ready to go :
