Posts Tagged ‘cloud computing’

Cisco Nexus 1000v, SC-Ports, VMkernel-Ports and more

October 15th, 2009

This week I had my first experiences installing a Cisco 1000v Switch on vSphere4. The first thing I have to say: It rocks but it is the most tricky thing I’ve ever installed. But the combination of servervirtualization and the virtualization of a Cisco Nexus Switch gives great new concepts and the opportunity to divide responsibilities. The biggest benefit is that you can give control of the network-ports, your VMs are plugged to, to your network administrators – They truly can handle all the VM-Ports as physical ones (but they have to know how to handle cisco switches). Furthermore you can let the vEth-Ports move with the VMs from host to host.

nexus1kv architecture

nexus1kv architecture

» Read more: Cisco Nexus 1000v, SC-Ports, VMkernel-Ports and more

proxy in the clouds…

August 25th, 2009

Inspired by the article “Netz ohne Gesetz” (translated it would be “the outlawed web”), published in the well known german magazine, “Der Spiegel”, I’ve tried to setup a proxy in Amazon’s cloud. And after 20 minutes I had set-up two of them – one in the U.S. cloud (located in Seattle) and another one in the EU cloud (located in Dublin) of Amazon.

proxy-setting

two different proxies used...

The most interesting part was then to google some buzzwords and see how many hits one gets with an american ip and how many hits one gets with a european ip – in some cases there is a huge difference ;-)

For all of you who would like to try it yourselves, I’ve written a how-to, which you can download in the articles section of this site. Have fun…!

excerpt:

[...] This article describes the setup of a proxy-server in a cloud. You can use a proxy like this from everywhere through the internet. Reasons to do this could be:

  • Your internet access is filtered but you need access to sites which are filtered.
  • You want to have a log of all sites and files you’ve visited from different browsers.
  • You need to speed up your internet connection through caching.
  • You want to filter the internet access of your kids. [...]