1. What's a 'SAN'?
2. What's a 'LUN' on a Fiberchannel SAN?
3. What are the differences between iSCSI, NAS and Fiberchannel SANs?
4. How does data de-duplication work?
5. What are the different types of 'stores' supported by Microsoft Exchange?

First, I enjoyed DeepSec conference and I am grateful for the invitation to speak there. I love European conferences – and not only for having infinitely (with that being an under-statement of the year) superior coffee during breaks :-)  In particular, I liked the audience for my presentation (slides will be posted here soon) and I think the audience liked my material and myself too :-)

What also impressed me a lot was Ivan Ristic speech, which was the second day keynote. He started by simply stating that ‘security industry has failed’ and that ‘a desktop is lost.’ His proof was in typical numbers like “75% of corporate systems are infected with at least 1 malware piece per system”, “1 million of malware types” and “25,000 unique malware samples a day seen.”  However, he then broadened the subject and talked about how not only “a trusted desktop” is gone, but the entire world of “trust everything [on a system], all the time” is gone (his ideas were similar to what I planned to present in my HITB 2008 presentation about “the 0wned world”)

I also like how he positioned all those “security user prompts” (in Vista and even before) as a proof that security technologies have failed and now we have to rely on the user to make security decisions (which will obviously fail as well since users are now fully conditioned to “see a chunk of technical mumbo-jumbo, then click OK”)

It was also interesting how he connected a lot of security failures to his “#1 reason: all programs run with all privileges of the user that runs them.”  In fact, he illustrated it by reminding the audience that “everybody runs untrusted code every day today [web browser + Javascript, etc] while nobody did this 30 years ago.”  He also beat up blackisting as an approach to security (but then again, everybody does it today :-)) - what was interesting that he opined that “we will spend the next 10 years proving that whitelisting will fail just as we spent previous 10 years proving that blacklisting fail.” His main point was that global “onslaught” of whitelisting and code signing will kill all sorts of useful things AND provide little security.

He then called for everybody to think about solving the hard, possibly non-sexy problems. This is the part where I could have used more details :-)

So, a fun speech (even though my telling of it is a bit jumbled… check out his slides whenever they are posted) – and a fun conference overall. Worth a 12 hour flight :-)

After meetings and calls, I was finally able to slip into a conference session – just in time to catch uber-smart analysts Rachel Chalmers (The 451 Group) and Dan Golding (Tier1 Research) engage in a lively and not-so-mock debate on “Hosting Meets the Cloud”.

Now this doesn’t cover the entire debate – and part II is coming tomorrow. But what it does cover is the most interesting questions (to me) and paraphrase the points made by the analysts. I thought they both had very interesting points and more similarities than differences in the end; the real difference is how they thought about the issues and through what lens – for Rachel it was the enterprise and for Dan it was managed hosting providers. (image from inmagine)

Question: What is a cloud and why?

Dan: Shared infrastructure leveraged/run by third parties for the benefit of enterprises, developers, etc. This is not a new idea – just recently “rebranded.” Given all the discussion and disagreement over this now, what will the cloud end up looking like?

Rachel: The cloud is “IT infrastructure as a service” down to the level of a server operating system. Take the example of Amazon web services – in this case it’s not just the infrastructure but also the internal processes built around service delivery, e.g., provisioning, that are being exposed as a commodity to external customers.

Dan’s Question for Rachel: In your opinion, how much is the cloud a fad versus CIOs really trying to solve a problem?

Rachel: For the practical, roll-up-your-sleeves types of CIOs – those coming up from the engineering ranks – that I talk to, the cloud is real, as opposed to SOA and middleware.

What about “internal” cloud computing – built and maintained by an enterprise versus a third-party provider?

Dan: Cloud computing is done by providers for customers. Certainly there are enterprises that have made internal computing investments, e.g., for publishing, large-scale phone systems, etc - but they were stupid ideas made by companies that have too much money. A better question here is does it make any sense for an enterprise to create their own cloud? While an enterprise can play at it, they can’t do it cost-effectively, not in a way that a third party provider can do it.

Rachel: Many CIOs have “managed-hoster” envy – for things like chargeback and billing that hosters understand a do better. Of course there has been a rise in automation and virtualization tools in the enterprise which may not be as efficient and built for scalability as a hoster can achieve, but what is important is that they are customized/specialized for that business.

Dan: Can you give a specific example of optimization to make it worthwhile for enterprises to do it themselves?

Rachel: One example is sovereignty. The privacy laws around financial and healthcare information are not the same everywhere. Clouds and their geographically-dispersed data centers don’t necessarily have “national” borders. This is definitely a concern for the CIO that has to comply with regulations in their industry around privacy protection, for instance. Another example is security. Dow Chemical does a lot of work via joint ventures and has a need to provide but lock down desktops given to contractors as corporate workspaces. For their level of security, they need to “own” their computing resources.

Dan: But why can’t someone like SunGard provide that as they do for many other large companies?

Rachel: It comes down to a question of trust.

Do people trust their hosting providers?

Dan: Yes. Whether it’s for a content delivery network or collocation, hosting the customers of hosting providers are some of the largest companies in the world in industries like energy and financial services. Give me a case when there was a major security issue with a hosting company. In fact, managed hosting providers usually provide better security than enterprises are capable of.

And a question provided by an attendee from EMC: A few years ago, this would have been a grid discussion. How is the cloud different?

Rachel: Grid computing ended up being applicable only for niches – which I predicted. The real opportunity for everyone else with the cloud only comes up when you combine the kinds of automation tools (originally developed for grid computing) with x86 virtualization.

Dan: I agree. Grid was a niche play. There were very few orgs that needed it and that the economics worked for. There were very few enterprises for whom it made sense to build their own for. The cloud is shared/leveraged versus grid computing. It economically makes sense in a way grid never did.

…the FBI and the Secret Service came to the campaign with an ominous warning: “You have a problem way bigger than what you understand,” an agent told Obama’s team. “You have been compromised, and a serious amount of files have been loaded off your system.” The following day, Obama campaign chief David Plouffe heard from White House chief of staff Josh Bolten, to the same effect: “You have a real problem … and you have to deal with it.” The Feds told Obama’s aides in late August that the McCain campaign’s computer system had been similarly compromised.

This information demonstrates that the US government has a sophisticated intrusion detection capability. This is likely part of the NSA internet surveillance system that was made public by an AT&T technician in 2006.

It is likely that the system has a set of watch IP ranges that are sensitive from a national security perspective. The campaigns’ computers were probably on this list. The traffic between foreign IP addresses and these watch IPs is then scrutinized for espionage. The pattern of activity flagged would be Microsoft Office documents and PDFs being retrieved or other intruder signs such as an encrypted tunnel with a foreign endpoint.

This shows that the US Government has the capability to detect some types foreign attacks although they probably have to be selective of the IP ranges they monitor. It’s nice to know that if the White House computers were leaking documents to China or Russia that there is some detection capability, but the fact that this is done at the Internet backbone level means any IP could be targeted and it might not just be to look for foreign intrusions.