Using iTerm2 with Cisco VIRL

I love using VIRL to do quick self-check of a config, personal education, and learning the behavior of particular features. I also love using the iTerm2 Terminal Emulator on the Mac. Unfortunately, it isn’t obvious how to make the two play well together. I have had to re-educate myself on this over and over again as I get new computers, mess up my settings and do certain upgrades. I’m pretty sure I copied some of this configuration and the script that I will share from somewhere. So if this looks familiar, reach out to me and I will link back to the source.

This post meant to both share the config and caveats with others as well as to document the nuances for my future reference. In short, there is a standard configuration and a custom configuration for the terminal settings in VIRL’s VMMaestro. These are found in “VMMaestro -> Preferences.”

VMMaestroTerm2

These settings control whether the built-in (VMMaestro’s client) is used or an external terminal client should be used. I much prefer an external client and iTerm2 is my current client of choice. To eliminate the need of manually launching and connecting, I have customized the Applescript code found below. Continue reading

SD-Access ( Fabric Network, Automation and Analytics LAN ) – Campus Networks

Today I am going to talk about new generation technology which Cisco launches in the LAN Campus network. The Next generation is dedicated to the Software defined network and thats what Cisco takes this approach to the LAN network as well with orchestration. Cisco put the pillars and made a architecture around it which includes - Campus Fabric Network, Automation, Authentication and Analytics. All these features are built into the SD-Access technology and will going to replace the traditional approach of Campus Network.

I knew you have some questions around it like
How traffic flows in Campus Network?
What and how fabric works?
Is there VLAN approach works?
Do we need to have SVIs ?

Well take a look into SD-Access approach you will come to know what approach Cisco takes to make it successful in the Campus

SD-Access = Campus Fabric+ DNA Center

Campus Fabric: 
Campus Fabric have these three protocols works together to make it excellent way to communicate.

  • LISP- Location/Identifier Seperation Protocol- Control Plane 
  • VXLAN- Virtual Extensible LAN - Data Plane
  • Cisco Trustsec- Segmented Tags
I will explain all these protocols one by one in later articles and then i will come up with the solution with Continue reading

What’s new in Docker 17.06 Community Edition (CE)

Docker 17.06 CE (Community Edition) is the first version of Docker built entirely on the Moby Project. New features include Multi-Stage Build, new Networking features, a new metrics endpoint and more! In this Online Meetup, Sophia Parafina, Docker Developer Relations Engineer, demo’d and reviewed these new features. Check out the recording below and slides.

Learn More about Docker 17.06 CE

Check out the announcement blog post or watch the video summary below.

To find out more about these features and more:

 

Learn more about what’s new in #Docker 17.06 CE w/ @spara’s online #meetup video
Click To Tweet

The post What’s new in Docker 17.06 Community Edition (CE) appeared first on Docker Blog.

Pest-control IoT: Tough on rats

In 2012, Swedish pest control company Anticimex began a period of rapid expansion into 18 countries and now reaps revenues of $474 million thanks in part to an aggressive new technology plan that hinges in part on the Internet of Things.+ALSO ON NETWORK WORLD: DreamWorks: The animation studio's powerful network + What Cisco’s new programmable switches mean for youAnticimex’s embrace of IoT goes back to a regional manager in central Europe reading a story about rat infestations in Copenhagen and inventing a motion-detector-based rat trap for use in sewers, according to company’s CIO Daniel Spahr.To read this article in full or to leave a comment, please click here

Worth Reading: The next generation of whois

Similar to Internet DNS, WHOIS is not a single, centrally managed database. Rather, domain name registration data is held in disparate locations and administered by multiple Registries and Registrars. Further, a similar WHOIS service (maintained by Regional and National Internet Registries) exists for Numbering Resources (IPV4/V6 addresses, ASN numbers) on Internet. For the sake of simplicity and clarity, we will only talk about domain name WHOIS in this article. —APNIC

The post Worth Reading: The next generation of whois appeared first on rule 11 reader.

WISP/FISP Design – Building your future MPLS network with whitebox switching.

 

MPLS-Whitebox-drawings

The role of whitebox in a WISP/FISP MPLS core

Whitebox, if you aren’t familiar with it, is the idea of separating the network operating system and switching hardware into commodity elements that can be purchased separately. There was a good overview on whitebox in this StubArea51.net article a while back if you’re looking for some background.

Lately, in my work for IP ArchiTechs, I’ve had a number of clients interested in deploying IP Infusion with either Dell, Agema or Edge Core switches to build an MPLS core architecture in lieu of an L2 ring deployment via ERPs. Add to that a production deployment of Cumulus Linux and Edge Core that I’ve been working on building out and it’s been a great year for whitebox.

There are a number of articles written that extoll the virtues of whitebox for web scale companies, large service providers and big enterprises. However, not much has been written on how whitebox can help smaller Tier 2 and 3 ISPs – especially Wireless ISPs (WISPs) and Fiber ISPs (FISPs).

And the line between those types of ISPs gets more blurry by the day as WISPs are heavily getting into fiber and FISPs are Continue reading

WISP/FISP Design – Building your future MPLS network with whitebox switching.

 

MPLS-Whitebox-drawings

The role of whitebox in a WISP/FISP MPLS core

Whitebox, if you aren’t familiar with it, is the idea of separating the network operating system and switching hardware into commodity elements that can be purchased separately. There was a good overview on whitebox in this StubArea51.net article a while back if you’re looking for some background.

Lately, in my work for IP ArchiTechs, I’ve had a number of clients interested in deploying IP Infusion with either Dell, Agema or Edge Core switches to build an MPLS core architecture in lieu of an L2 ring deployment via ERPs. Add to that a production deployment of Cumulus Linux and Edge Core that I’ve been working on building out and it’s been a great year for whitebox.

There are a number of articles written that extoll the virtues of whitebox for web scale companies, large service providers and big enterprises. However, not much has been written on how whitebox can help smaller Tier 2 and 3 ISPs – especially Wireless ISPs (WISPs) and Fiber ISPs (FISPs).

And the line between those types of ISPs gets more blurry by the day as WISPs are heavily getting into fiber and FISPs are Continue reading

Stuff The Internet Says On Scalability For July 7th, 2017

Hey, it's HighScalability time:

 

 

What's real these days? I was at Lascaux II, an exact replica of Lascaux. I was deeply, deeply moved. Was this an authentic experience? A question we'll ask often in VR I think.

If you like this sort of Stuff then please support me on Patreon.
  • Vladimir Putin: We must take into account the plans and directions of development of the armed forces of other countries… Our responses must be based on intellectual superiority, they will be asymmetric, and less expensive.
  • @swardley: What most fail to realise is that the Chinese corporate corpus has devoured western business thinking and gone beyond it.
  • @discostu105: I am a 10X developer. Everything I do takes ten times as long as I thought.
  • DINKDINK: You grossly underestimate the hashing capacity of the bitcoin network. The hashing capacity, at time of posting, is approximately 5,000,000,000 Gigahashes/second[1]. Spot measurement of the hashing capacity of an EC2 instance is 0.4 Gigahashes/second[2]. You would need 12 BILLION EC2 instances to 51% attack the bitcoin network.[3] Using EC2 to attack the network is impractical and inefficient.
  • danielsamuels && 19eightyfour~ Machiavelli's Guide to PaaS: Keep your friends close, and Continue reading

Worth Reading: Why isn’t everyone running DNSSEC?

Given how critical DNS is to the functioning of the Internet, it’s a mystery that the world is prepared to accept such a security-deficient protocol at the core of all its infrastructure. What’s even crazier is that there’s a secure solution that’s been in the pipeline for over a decade: DNS security extensions, or DNSSEC. —APNIC

The post Worth Reading: Why isn’t everyone running DNSSEC? appeared first on rule 11 reader.

Robots, AI will run data centers

Artificial intelligence (AI) and blockchain are among new technologies that are driving a need for increased data center capacity, according to a telco, announcing an expansion recently.China Telecom said in a press release that these “rapidly maturing” technologies, such as machine learning and adaptive security, will propel investment in data centers. And that they are one reason for its data center-business enlargement.Interestingly, though, data centers themselves may end up using this new tech as heavily as the customers.To read this article in full or to leave a comment, please click here

Robots, AI will run data centers

Artificial intelligence (AI) and blockchain are among new technologies that are driving a need for increased data center capacity, according to a telco, announcing an expansion recently.China Telecom said in a press release that these “rapidly maturing” technologies, such as machine learning and adaptive security, will propel investment in data centers. And that they are one reason for its data center-business enlargement.Interestingly, though, data centers themselves may end up using this new tech as heavily as the customers.To read this article in full or to leave a comment, please click here

British Army Talks DevOps at AnsibleFest London 2017

AF-London-Blog-5-1.jpg

AnsibleFest London on June 22 turned out to be our largest AnsibleFest to date with over 800 people from 25 countries. Thank you to everyone who attended.

One of the highlights from the conference was "Efficiency and Effectiveness through DevOps" by the British Army. Lt Col Dorian Seabrook, Head of Software Delivery, and Aidan Beeson, Linux Technical Architect, spoke about their experiences using Red Hat Enterprise Linux and Ansible Tower by Red Hat to implement modern DevOps and CI methodologies within their organization.

Watch their talk below and stay tuned for the rest of the AnsibleFest London 2017 presentations. We will have all of them available for you soon!

Want to learn more about how the British Army is migrating its cloud infrastructure to Red Hat solutions? Read the latest press release.

1 … 1,985 1,986 1,987 1,988 1,989 … 3,835