Build your own network simulator using open-source DevOps tools
Open-source DevOps tools are used to deploy applications and services in datacenter server networks, but they may also enable researchers or students to simulate networks. In this post, we will survey popular open-source DevOps tools and provide links to information that shows how to use them to create network simulation scenarios.
Most open-source network simulators simplify the setup and configuration of virtual machines and the networking connections between virtual machines. DevOps tools such as OpenStack do the same things, although they expose more of the complexities of the virtualized infrastructure to the user.
If you are already using DevOps tools for other activities you may find it useful to also use them when you need to create a simulated network instead of learning to use a network simulator.
Comparing simulators to DevOps tools
Both open-source network simulators and a coordinated set of DevOps tools perform the same role: they orchestrate the setup, interconnection, and configuration of virtual nodes in a virtual network.
Open-source simulators are built to support small-scale simulation scenarios on one computer, although some can run in a distributed mode across multiple computers. DevOps tools are designed to work in datacenters composed of hundred or thousands of servers, Continue reading
Packets of Interest (2015-06-19)
It's been a while since I've done a POI so here we go. The Mystery of Duqu 2.0: a sophisticated cyberespionage actor returns https://securelist.com/blog/research/70504/the-mystery-of-duqu-2-0-a-sophisticated-cyberespionage-actor-returns/ Kaspersky Lab found this new variant of the Duqu malware in their own network. They wrote a paper based on their analysis of this new malware. It fascinates me how sophisticated these software packages are and how much effort the threat actors put into them. Diffie-Hellman Key Exchange Diffie-Hellman (DH) is the world's first public key crypto system.StackEngine’s Docker Orchestration For Dummies
Austin-based startup joins the Docker orchestration gold rush.
Virtual Mobile Infrastructure: Secure the data and apps, in lieu of the device
This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter’s approach.
Corporate use of smartphones and tablets, both enterprise- and employee-owned (BYOD), has introduced significant risk and legal challenges for many organizations.
Other mobile security solutions such as MDM (mobile device management) and MAM (mobile app management) have attempted to address this problem by either locking down or creating “workspaces” on users’ personal devices. For BYOD, this approach has failed to adequately secure enterprise data, and created liability issues in terms of ownership of the device – since it is now BOTH a personal and enterprise (corporate)-owned device.
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Obstacles Make Enterprise SDN Slow And Painful
At the Open Networking Summit, a panel of enterprise infrastructure leaders discussed the obstacles they face in adopting software-defined networking.Cumulus Linux — The Foundation of OpenStack Automation
OpenStack is the de facto open source orchestration standard for modern cloud infrastructure. The foundational components stitch together compute, storage and, of course, networking. Linked together, these components are used for both public and private clouds all around the world. Cumulus Networks naturally fits into this ecosystem, and Cumulus Linux is the universal underlay or enabler for such deployments.
Solution Guide
Over the past two quarters, Cumulus Networks has shared solution guides for our 2.5.x releases. In this post we’re going to dive into how you can automate a proof-of-concept OpenStack deployment. For those who learn by watching, a recent video from the OpenStack Vancouver (May 2015) summit event may be helpful; the presentation summarizes all of the behind-the-scenes tasks described below.
Prerequisites
Our goal is to set up an end-to-end OpenStack deployment with the fewest interactive steps, making it as unattended as possible, and ideally taking no more than 20 minutes. The configuration scope includes all networking, server and storage components.
To facilitate a consistent architecture, we’ve imposed a few basic cabling and physical requirements. To make the PoC easy to implement, we assume no external Internet access is available — the entire solution is autonomous with all prerequisites present or cached.
For our first Continue reading