We are setting up XenServer machine with several VMs for our ecommerce business. We are intending to distribute services across several VMs (1 for web, 1 billing, 1 email, etc.)
The XenServer machine has 2 NICs.
My question is should we be using a public IP for each VM and rely on IPTables for firewall security, or should 1 NIC to devoted to management and the other for a virtualised firewall application such as Untangle, and route the VMs through there?
Thank you for any help