Citrix Xenserver admin, add additional ips to Centos Virtual machine - repost

We have a citrix xenserver running 4 vms, on the OVH Network. Windows 7 windows 2008 server windows 2008 Server Centos 64 6.2 with plesk. Each VM is on its own ip. We need to add an additional IPs to the Centos machine for SSL. Scrope of work. Add additional IPS to centos machine. Move website within centos / plesk to IP and add and install the SSL Cert for this domain. Add other spare IPS to Centos/ Plesk for future use. You must have. Worked within OVH before. Knowledge of Citrix Xenserver Working knowledge of Centos and SSL security. Be able to work over team-viewer or similar. For security reasons you will be working via Team-viewer. SSL should be working on the domain at end of project, the extra ips must be ready to use at any point in plesk admin for future use. You maybe required to do extra updates at hourly rate to security or other features.