Here is a block diagram showing the functional areas in private & public cloud that I use when working with clients. I'm often explaining the full picture of cloud building especially in relation to how the network can be orchestrated to fully accelerate the cloud process. I hope you find it useful.
The post My Private Cloud Block Architecture Diagram appeared first on EtherealMind.
The cultural divide between delegation of network control such as in the case of Cisco ACI, or VMware’s NSX is a cause for questioning. These are off the shelf products designed to solve a problem that exists today but introduce new problems to the organisations that acquire them. Who controls the network and at what stratum(1)? In the case of automation and orchestration products, who creates the templates? Who is allowed to trigger automation and orchestration events and even more importantly, when is that person allowed to do it? As the virtual networks are virtual, does control belong with the virtualisation team? Hrmmm. Lots of questions. Many of these are dependent on the company, customer and situation and might not be solved with the most marketed product. A regimented set of answers doesn’t exist, nor do I think there will ever be out of hyper scale data centre environments.
It has taken years for the DevOps community to understand how to handle the requirement of rapid and agile deployment. We’re not the first ones to go through this pain. Can you imagine a tightly controlled ITIL governed network suddenly being comfortable with partial or fully automated approach to network Continue reading
Today we're happy to announce a new update to Ansible Tower CLI (link) that provides near 100% coverage of all REST functions within Ansible Tower from a CLI perspective. The CLI tool can also be imported and used as a library from other python programs. Tower CLI is open source, under the Apache 2.0 license, so it can be easily mixed into other projects, and we're also happy to take pull requests and ideas on this project.
The Coffee Break will be renamed to the "The Network Break" and will be getting its own channel on the Packet Pushers Network. But for this week, we talk about the latest news in networking and physical infrastructure.
The post Coffee Break 12 appeared first on Packet Pushers.
The Coffee Break will be renamed to the "The Network Break" and will be getting its own channel on the Packet Pushers Network. But for this week, we talk about the latest news in networking and physical infrastructure.
The post Coffee Break 12 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
INE is reducing the cost of our live, instructor-led bootcamps by $1,000 each. Our new pricing model will still include access to our workbooks and ATC video courses with the purchase , but will separate out the Lab Exam Voucher and access to our All Access Pass as optional add-ons to provide you with a more flexible options for both your learning style and your budget. If you would like the existing complete, bundled solution, you have until Aug 1 to make a bootcamp purchase.
See this advert for more details.
Look forward to seeing you in a bootcamp soon!
I’ve spent some time over the last few weeks playing around with VMware’s NSX product. In this post, I’d like to talk about getting the base NSX configuration done which we’ll build on in later posts. However, when I say ‘base’, I don’t mean from scratch. I’m going to start with a VMware environment that has the NSX manager and NSX controllers deployed already. Since there isn’t a lot of ‘networking’ in getting the manager and controllers deployed, I’m not going to cover that piece. But, if you do want to start from total scratch with NSX, see these great walk through from Chris Wahl and Anthony Burke…
Chris Wahl
http://wahlnetwork.com/2014/04/28/working-nsx-deploying-nsx-manager/
http://wahlnetwork.com/2014/05/06/working-nsx-assigning-user-permissions/
http://wahlnetwork.com/2014/06/02/working-nsx-deploying-nsx-controllers-via-gui-api/
http://wahlnetwork.com/2014/06/12/working-nsx-preparing-cluster-hosts/
Anthony Burke
http://networkinferno.net/installing-vmware-nsx-part-1
http://networkinferno.net/installing-vmware-nsx-part-2
http://networkinferno.net/installing-vmware-nsx-part-3
Both of those guys are certainly worth keeping an eye on for future NSX posts (they have other posts around NSX but I only included the ones above to get you to where I’m going to pick up).
So let’s talk about where I’m going to start from. My topology from where I’ll start looks like this…
Note: For reference I’m going to try and use the green Continue reading
What is the future of SDN Vendors ? Will all the startups eventually close down to just a few choices or can there be a vibrant ecosystem which can allow for many vendors to survive ? The discussion took a left turn and became an strong discussion of whether resellers will survive the arrival of SDN.
The post Priority Queue – SDN and The Reseller Channel appeared first on Packet Pushers Podcast and was written by Greg Ferro.
To run a program that uses a graphical user interface on a guest virtual machine running in the cloonix open-source network simulator, log into the guest VM from the host computer using SSH and forward the X11 display. Then, any X11 program you run on the guest VM using that SSH session, such as Wireshark, will display its X windows on the host computer.
First, we create a cloonix network simulation with at least one guest VM. In this example, we created three guest VMs named Cloon1, Cloon2, and Cloon3.
A cloonix network simulation with three guest VMs
See previous posts related to using cloonix, if you need help setting up the example network.
Open a new terminal window on the host computer. We do this so we can run X windows from the guests on the host. As discussed in the Cloonix v24 overview post, cloonix uses a patched version of the Dropbear SSH client so we use the dbssh command that is installed in the cloonix tree directory, ~/Netsims/cloonix-24.11.
The Dropbear SSH client automatically forwards X windows from the client machine to the server machine so Continue reading
The tutorial discuss the use of GNS3 software to run Cisco Virtual IOS (vIOS). Cisco vIOS is shipped and supported as a part of the Cisco's One Platform Kit (onePK) that is distributed in form of virtual machine. It might be downloaded with Cisco.com account. Currently, it is not required to have Cisco account associated with service contracts, Bill-to IDs, or product serial numbers in order to download onePK.
Here is a Linux bash script that helps you to extract vIOS vios-adventerprisek9-m.vmdk from all-in-one VM file. Download all-in-one.ova file from here and assign executable privileges to the script.
$ chmod +x extract_vios.txt
Then you can run the script as it is shown below. The only user input is selecting path to all-in-one VM file Continue reading
TAKE ACTION: Congress is trying sneak through a dangerous amendment that will kill Net Neutrality. Call right now: https://t.co/lmObQjG49N
— EFF (@EFF) July 15, 2014I’ve been working on Mellanox S-Series switches lately in a largish network with several hundred 10GbE server ports. On the whole, the product has performed beyond my cynically low expectations and the product has good capabilities overall but the command line interface (CLI) is a really poor user experience. How about this gem for configuring […]
The post Mellanox and bad CLI choices appeared first on EtherealMind.
I had the good fortune last week to read a great post from Maish Saidel-Keesing (@MaishSK) that discussed security models in relation to candy. It reminded me that I’ve been wanting to discuss security models in relation to desserts. And since Maish got me hungry for a Snicker’s bar, I decided to lay out my ideas.
When we look at traditional security models of the past, everything looks similar to creme brûlée. The perimeter is very crunchy, but it protects a soft interior. This is the predominant model of the world where the “bad guys” all live outside of your network. It works when you know where your threats are located. This model is still in use today where companies explicitly trust their user base.
The creme brûlée model doesn’t work when you have large numbers of guest users or BYOD-enabled users. If one of them brings in something that escapes into the network, there’s nothing to stop it from wreaking havoc everywhere. In the past, this has caused massive virus outbreaks and penetrations from things like malicious USB sticks in the parking lot being activated on “trusted” computers internally.
A Slice Of Pie
A more modern security Continue reading