ENKI's Virtual Private Data Centers are based on AppLogic, which uses Xen as its virtualization engine.  Xen virtual private servers have a fixed resource (memory and CPU) allocation, which prevents multiple VPSs on a single machine from interfering with each other.  This allows us to guarantee you the performance you expect based on your requested resource allocations.  You can always request a change to your VPSs resource allocations, and your bill will be based on the weighted average of your requested allocation over the month. 

What are the LB (load balancer) and f/w (firewall) appliances vendors ENKI uses?

Our LB and f/w appliances are software appliances, implemented via open source applications, as provided by 3Tera.  For more information, please see the 3Tera website appliance catalog.   ENKI will use these appliances unless our customers' requirements dictate otherwise.  We currently have our own firewall appliance using software from Untangle.   In addition, we have an active security system provided by Fortinet in our data center, which uses signature-based exploit denial and email filtering.  We also configure our physical routers, which are supplied by Cisco and Juniper, to deny known exploits, filter unused ports out, and limit IP address spaces that can be guessed or attacked.