Creating a Dynamic Lab Environment with vEOS and GNS3 – Part II
SETTING UP A DHCP AND FILE SERVER FOR USE WITH ZTP
NOTE Notice that we did not connect the Management1 interface of either vEOS instance to anything inside of GNS3. If you remember when we created the VMs, their first interface is a host-only adapter connected to the vboxnet in VirtualBox, so it’s automatically connected and there’s nothing additional we need to do there, but GNS3 doesn’t know that so it considers the interface disconnected, and that’s OK. That saves us from having to add our management server(s) to the topology and cluttering it up (Just imagine trying to have a nice clean-looking topology in GNS3 if you had to have a connection from every vEOS instance to the management server(s) ), which is distracting and ugly - we’re better than that. |
Creating a Dynamic Lab Environment with vEOS and GNS3 – Part I
GETTING STARTED
Preliminary Installation Setup
Creating the Management Network
SETTING UP vEOS
Creating a Base Image
Sometimes techy details matter
How terrorists use encryption is going to become central to the Cryptowars 2.0 debate. Both sides are going to cite the case of Reda Hame described in this NYTimes article. On one hand, it shows that terrorists do indeed use encryption. On the other hand, the terrorists used TrueCrypt, which can't be stopped, no matter how many "backdoor" laws the police-state tries to pass.The problem with the NYTimes article is that the technical details are garbled. (Update: at the bottom, I correct them). Normally, that's not a problem, because we experts can fill in the details using basic assumptions. But the technique ISIS used is bizarre, using TrueCrypt containers uploaded to a file-sharing site. This is a horrible way to pass messages -- assumptions we make trying to fill in the blanks are likely flawed.
Moreover, there is good reason to distrust the NYTimes article. Small details conflict with a similar article in the French newspaper Le Monde from January 6. Both articles are based on the same confession by Reda Hame from last August.
For example, in discussing a training accident with a grenade, the NYTimes article says "Mr. Hame did not throw it far Continue reading
The CORD Architecture
Edge provider networks, supporting DSL, voice, and other services to consumers and small businesses, tend to be more heavily bound by vendor specific equipment and hardware centric standards. These networks are built around the more closed telephone standards, rather than the more open internetworking standards, and hence they tend to be more expensive to operate and manage. As one friend said about a company that supplies this equipment, “they just print money.” The large edge providers, such as AT&T and Verizon, however, are not endless pools of money. These providers are in a squeeze between the content providers, who are taking large shares of revenue, and consumers, who are always looking for a lower price option for communications and new and interesting services.
If this seems like an area that’s ripe for virtualization to you, you’re not alone. AT&T has been working on a project called CORD for a few years in this area; they published a series of papers on the topic that make for interesting reading:
PLUMgrid Touts Containers & CloudApex in 5.0 Release
CloudApex functionality is key.
Worth Reading: Yellow journalism on encryption
The post Worth Reading: Yellow journalism on encryption appeared first on 'net work.
Should Apple Build their Own Cloud?
This is one of the most interesting build or buy questions of all time: should Apple build their own cloud? Or should Apple concentrate on what they do best and buy cloud services from the likes of Amazon, Microsoft, and Google?
It’s a decision a lot of companies have to make, just a lot bigger, and because it’s Apple, more fraught with an underlying need to make a big deal out of it.
This build or buy question was raised and thoroughly discussed across two episodes of the Exponent podcast, Low Hanging Fruit and Pickaxe Retailers, with hosts Ben Thompson and James Allworth, who regularly talk about business strategy with an emphasis on tech. A great podcast, highly recommended. There’s occasional wit and much wisdom.
Dark Clouds Over Apple’s Infrastructure Efforts
Docker Birthday #3: Thank you Docker community!
Gracias, merci, danke, obrigado, рақмет сізге, tak, धन्यवाद, cảm ơn bạn, شكرا, mulțumesc, asante, ευχαριστώ, thank you Docker community! While we originally planned for 40 Docker Birthday #3 celebrations worldwide with 1,000 attendees, over 8,000 people registered to attend one … ContinuedWhy I am excited to join the Cloud Native Computing Foundation Technical Oversight Board
Docker’s mission is to build tools of mass innovation. To achieve this goal, we collaborate with the best developers in the world, working with the open source projects and organizations tackling the various aspects of containerization: the Docker open source … ContinuedVideo And The Death Of Dialog
I was reading a trivia article the other day about the excellent movie Sex, Lies, & Videotape when a comment by the director, Stephen Soderbergh, caught my eye. The quote, from this article talks about how people use video as a way to distance ourselves from events. Soderbergh used it as a metaphor in a movie made in 1989. In today’s society, I think video is having this kind of impact on our careers and our discourse in a much bigger way.
Writing It Down In Pictures
People have become huge consumers of video. YouTube gets massive amounts of traffic. Devices have video recording capabilities built in. It’s not uncommon to see a GoPro camera attached to anything and everything and see people posting videos online of things that happen.
My son is a huge fan of videos about watching other people play video games. He’ll watch hours of video of someone playing a game and narrating the experience. When I tell him that he’s capable of playing the game himself he just tells me, “It’s not as fun that way Dad.” I, too, have noticed that a lot of things that would normally have been written down are Continue reading