Tag: Networking
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Installing and Running KVM on Ubuntu 14.04 Part 4
In part 3 of this series about installing KVM on Ubuntu 14.04 I installed and configured KVM. In this part I’ll be installing a guest.
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Installing and Running KVM on Ubuntu 14.04 Part 3
In part 2 of this series about installing KVM on Ubuntu 14.04 I configured the network. In this part I’ll be installing and configuring KVM.
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Installing and Running KVM on Ubuntu 14.04 Part 2
In part 1 of the series I covered basic machine set up and preparation. In this second part of the series about setting up KVM on Ubuntu 14.04 I cover setting up the network. Setting up the network can seem quite daunting but a basic KVM install doesn’t actually require much network set up.
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Understanding TUN TAP Interfaces
As I mentioned in the previous article Understanding Bridges, Linux and most other operating systems have the ability to create virtual interfaces which are usually called TUN/TAP devices. This article will discuss those devices with particular focus on how they are used in OpenStack.
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Understanding Bridges
In this article I’ll discuss network bridges and where they are commonly used (spoiler: they aren’t any more). Mainly though I want to discuss how bridges are used in an OpenStack set up as building a personal cloud is my final aim. Hardware network bridges aren’t as common as they once were as switches have…
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Understanding VLANs
The aim of this article is to explain VLANs to someone who has a reasonable understand of how a computer network works. Recently I’ve been reading up on OpenStack as I’d like to put together a small personal cloud for a project I’m working on. So far so easy but the one aspect that I’ve been…
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A Quick Introduction to Open vSwitch
In a previous article I discussed bridges and showed how the Linux utilities bridge-utils and iproute2 could be used to create virtual bridges within a system. This is great for simple set up but when deploying a cloud environment a bit more functionality is required and that’s where Open vSwitch comes in.
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Mininet Waiting for Network Configuration
I recently started taking the Udacity course on Computer Networking and while it looks like a good course it suffers from the same problem all the Udacity courses seem to suffer from: really badly put together examples and quizzes. It’s a shame because the material itself is generally of a really high quality. The problem I…
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Fixing the MikroTik Router After an Upgrade
I recently upgraded from RouterOS V5.13 to V5.16. The interface is a bit nice to look at (especially in the web configuration tool) and there is now a quick setup window in WinBox. The only downside of the upgrade is that all of a sudden my Internet connection stopped working.