The Virtualization Practice

Tag Archive for Vyatta

Application Security within the Virtual and Cloud Environments

Virtualization and Cloud Security architects, pundits, and writers like myself often talk about protecting the data within the virtual and cloud environments. However, in order to protect that data we need to be able to determine how the data will be used, accessed, modified, and eventually removed. So, how can we understand data security without understanding the application around it. But there is an even more fundamental problem, how do we define the application and the security measures we should take?

The 2/9 Virtualization Security Podcast was a discussion on when would one use a virtual firewall. This was in response to being told that there are some people that would never use a virtual firewall for anything, and that got me thinking. Outside of the politics involved with using virtual vs physical firewalls, when would you use one? What are the cut offs, and best practices around using virtual firewalls. We were joined by Rob Randell of VMware to discuss this point.

I and others look at Virtualization Security constructs with an eye towards Cloud Security, but they are not necessarily the same. Granted for some clouds, virtualization security can lead to cloud security but this really depends on how the cloud’s architecture. Even so, what we know from Virtualization Security WILL apply to Cloud Security and will be the basis for best practices. But you say, my cloud does not use Virtualizaiton? Ah ha, I say, but it is still a cloud? And that implies there are similar security concerns. This was the discussion on the 1/26 Virtualization Security Podcast.

When you read many blogs and articles on cloud security, writers such as myself often mention jurisdictional issues as a big problem. Nor is the ability to Audit clouds the only problem. Yet both of these are huge issues for clouds today, but fundamentally, is the cloud flawed from a security point of view or are there plenty of security mechanisms available?

Christmas is over and New Years is on its way. A time to make resolutions and see the year complete. A time to review what is old and plan for the future. This is a perfect time to review your defense in depth and look to see if there are security additions needed in 2012. So what cloud and virtualization security New Years resolutions should I make for 2012?

2011 saw a shift in how virtualization security was viewed and it showed in the way companies teamed up to address those needs. Even so, the most basic of issues still exist: The thought that once you virtualize you are more secure, and the lack of general protection for the management constructs of a virtual or hybrid environment. These two concepts have hindered adoption of virtualization security in 2011. Even so, there has been a steady shift through out the year as more and more companies talk about virtualization security. VMware has definitely lead the pack with its vShield Product line and its unified view of virtualization security. Other hypervisor vendors are also discussing virtualization security through their ecosystem if not directly. 2011 saw many companies forging their own partnerships to augment and compete in this space. Will these partnerships continue into 2012? Will virtualization security continue to be a hot area?