Skip to main content

Creating Virtual Isolated Networks

Nice article, originally seen at Doug's site and a snippet of the article:

Most recently, I’ve been feeling the itch to write a worm. The idea is attractive because a worm can be developed modularly with reusable components. Each individual component will increase my knowledge substantially in a different area of security, making the development a measurable goal with incremental positive feedback.

However, before development could begin, I wanted to ensure that I wouldn’t end up in court for an accidental release of one of the components gone awry. I love virtual machines as a tool to aid in the development process, so the solution was immediately obvious - create a multi-host virtual network that is isolated from the world. Further, I wanted each machine on this isolated network to occasionally be able to access the Internet to retrieve updates or tools, so the isolation needed to be complete but /controllable./ The final requirements of the virtual network ended up looking like this:

  • Isolated network except when explicitly given access to the Internet
  • Multiple hosts with different operating systems
  • Must be able to easily add and remove hosts
  • All hosts on the network must both default and fail to isolation

The way to implement this using VMWare Workstation (and I’m sure other products in their virtualization line) is to utilize teams. Teams are a ‘wrapper’ of a sort that encompass multiple VMs with additional configuration. When you start a team, each virtual machine included in the team’s configuration is also started. The team can be configured to also provide a virtual network segment for the virtual machines to use, which when paired with each VM in the team being configured with ‘host only’ network access, results in a virtual isolated network.

Nice one there...

Comments

Popular posts from this blog

DeepLearningTrucker Part 1

Avastu Blog is migrating to IdeationCloud.com; 1st Jan 2009 live

YOU DON'T HAVE TO DO ANYTHING. WITHIN 2 SECONDS YOU WILL BE REDIRECTED TO THE NEW HOME OF AVASTU BLOG. PLEASE DO UPDATE AVASTU BLOG'S URL to : http://www.ideationcloud.com on your website.

I will send out emails personally to those who are using my link(s) on their sites.

Thanks much for your co-operation and hope you enjoy the new site and its cool new features :-)




Not like the site is unlive or something..on the contrary, its beginning to get a lot of attention already. Well most of the work is done, you don't have to worry about anything though:

What won't change

Links/Referrals: I will be redirecting the links (all links which you may have cross-posted) to IdeationCloud.com - so you don't have to do anything in all your posts and links. Although, I would urge however that you do change the permalinks, especially on your blogs etc yourselfThis blog is not going away anywhere but within a few months, I will consider discontinuing its usage. I won't obviously do …

Cloud Security: Eliminate humans from the "Information Supply Chain on the Web"

My upcoming article, part - 3 data center predictions for 2009, has a slideshot talking about the transition from the current age to the cloud computing age to eventually the ideation age- the age where you will have clouds that will emote but they will have no internal employees.

Biggest management disasters occur because internal folks are making a mess of the playground.

Om's blog is carrying an article about Cloud security and it is rather direct but also makes a lot of sense:

I don’t believe that clouds themselves will cause the security breaches and data theft they anticipate; in many ways, clouds will result in better security. Here’s why: Fewer humans –Most computer breaches are the result of human error; only 20-40 percent stem from technical malfunctions. Cloud operators that want to be profitable take humans out of the loop whenever possible.Better tools – Clouds can afford high-end data protection and security monitoring tools, as well as the experts to run them. I trust…