Tag Archives: xen

Enable L2TP/IPSec VPN on Ubuntu

I use China Unicom 3G on my Android phone in China. To get rid of #GFW in China, with Richard guidance, I set up L2TP/IPSec VPN on Ubuntu, hosted @ http://Linode.com. Simply document the steps. IPSec sudo apt-get install openswan … Continue reading

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Decided to Switch KVM

Choosing a hypervisor in #Cloud projects always costs me time, between Xen & Kernel-based Virtual Machine (KVM). After an interesting discussion with one of Cloud Computing architect @ IBM, we get a deal – use KVM for future #Cloud implement. … Continue reading

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Enable VT @ BIOS

One of my customer asked me how to reuse the old fashioned PC in their Cloud. The question leads to “How to enable VT @ BIOS?”. I wrote the following message to my customer: Go to BIOS setting, then “Enable” … Continue reading

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Thoughts on Cloud Architecture in Open Source

Recently one of my friends I met from LinkedIn sent me several questions, about Cloud Computing, which looks like a Request for Proposal (RFP). I post my very personal response here for a mindshare. About Cloud, Cluster/ Load Balancing, Data … Continue reading

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What does RackSpace offer?

Part of the following comes from: http://www.comparewebhosts.com/…htm Rackspace’s cloud strategy is supported by three core offerings, all part of Mosso, Rackspace’s Cloud Hosting Division. The company’s existing Hosting Cloud and CloudFS storage offerings have been re-branded to reflect the company’s … Continue reading

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Q&A: Citrix exec says cloud to carry Xen against VMware

Source: http://news.cnet.com/8301-1001_3-10076377-92.html Author: Peter Judge Copyright: ZDNet I’m looking for the comparison between Xen and VMWare. I believe this interview tells some result and I highlight the key points in italic and bold from my understanding. =-=-=-=-=-=-=- Citrix aims to … Continue reading

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Xen versus VMware

Source: http://searchservervirtualization.techtarget.com/… Author: Bernard Golden … Even though VMware and Xen both provide an enterprise-focused server virtualization product, Xen’s approach to implementing virtualization has made for some challenges. VMware bases its product on hardware emulation, in which VMware provides a … Continue reading

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