Cloud Networking is secure and robust

You can create a complete end-to-end network from one cloud network, running on XenServer, through a VPN to another network in a different cloud. All servers and hosts communicate securely over SSL VPN. Amazon Machine Images are secured by the Amazon infrastructure using security groups.

The proof of concept speaks for itself. Between the Softlayer cloud and the Amazon EC2 cloud is running a site-to-site SSL VPN using Vyatta. All of the images in this architecture are running on XenServer. This proof of concept gives rise to many networking architectures for cloud computing.

The reason for using Vyatta site-to-site SSL VPN between the Softlayer and Amazon EC2 clouds is there needs to be a secure network between the two for the transfer of data. The Vyatta AMI (Amazon Machine Image) can also function as a complete router, firewall and DNS cache. The Vyatta SSL VPN router provides security with scalability. Suppose I wanted to separate the Vyatta SSL VPN from a Vyatta OSPF router, I would just launch another instance of the Vyatta AMI.

As you can see from the network diagram and video, complete routing from the Softlayer cloud to the Amazon cloud network is seamless, without having to buy any proprietary hardware. In fact, it is very low cost compared to traditional network solutions. Virtualized networking is here, it is fast, secure and cheap.

A CloudBurst happens when Citrix Workflow Studio determines that one of the devices in the Softlayer Cloud has reached a high watermark. WFS then instructs the NetScaler VPX to start sending traffic to the Cloud – CloudBurst.

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Configurations used

Vyatta SSL VPN (V1) – Datacenter Configuration
Vyatta SSL VPN (V2) – Cloud Configuration
XenApp VPN Client – Cloud Configuration

Links for this solution

Vyatta for XenServer – go here
Amazon EC2 – go here
XenServer is Free! – go here
XenApp – go here
Workflow Studio – go here
XenApp VPN Client – go here
Dell Server – go here
IP Addresses – go here

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