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Category Archives for "Networking"

ISDN error codes

000 0001 1 Unallocated (unassigned) number 000 0010 2 No route to specified transit network 000 0011 3 No route to destination 000 0110 6 Channel Unacceptable 000 0111 7 Call awarded and being delivered in an established channel 001 0000 16 Normal call clearing 001 0001 17 User busy 001 0010 18 No user […]

Dynamic Kubernetes installation/configuration with SaltStack

I’ve been playing more with SaltStack recently and I realized that my first attempt at using Salt to provision my cluster was a little shortsighted.  The problem was, it only worked for my exact lab configuration.  After playing with Salt some more, I realized that the Salt configuration could be MUCH more dynamic than what I had initially deployed.  That being said, I developed a set of Salt states that I believe can be consumed by anyone wanting to deploy a Kubernetes lab on bare metal.  To do this, I used a few more of the features that SaltStack has to offer.  Namely, pillars and the built-in Jinja templating language.

My goal was to let anyone with some Salt experience be able to quickly deploy a fully working Kubernetes cluster.  That being said, the Salt configuration can be tuned to your specific environment.  Have 3 servers you want to try Kubernetes on?  Have 10?  All you need to do is have some servers that meet the following prerequisites and tune the Salt config to your environment.

Environment Prerequisites
-You need at least 2 servers, one for the master and one for Continue reading

WWDC 2015 to kick off on June 8

Apple yesterday announced that WWDC 2015 will kick off on June 8 and run through June 12. The event will take place at San Francisco's Moscone West event center and, per usual, will showcase upcoming versions of OS X and iOS.“The App Store ignited an app ecosystem that is simply amazing, forever changing the lives of customers and creating millions of jobs worldwide,” Apple's Phil Schiller said in a press release. “We’ve got incredible new technologies for iOS and OS X to share with developers at WWDC and around the world, and can’t wait to see the next generation of apps they create.”To read this article in full or to leave a comment, please click here

Nokia/Alcatel-Lucent just as John Chambers predicted

ALLEN, TX -- Nokia’s $16.6 billion acquisition of Alcatel-Lucent is an example of the industry shifting just as Cisco predicted, its CEO said this week.Cisco CEO John Chambers has said that the IT industry in in for some “brutal” consolidation with perhaps only two or three of the top five companies standing in five years. Alcatel-Lucent may be vanishing if Nokia’s offer to swallow the company up is approved.“The market is playing out just as we expected,” Chambers said during an exclusive interview with Network World at Cisco IT Data Center Day here. “It’s going to be brutal, with some musical chairs. They missed market transitions so now they have to move rapidly.”To read this article in full or to leave a comment, please click here

Nokia/Alcatel-Lucent just as John Chambers predicted

ALLEN, TX -- Nokia’s $16.6 billion acquisition of Alcatel-Lucent is an example of the industry shifting just as Cisco predicted, its CEO said this week.Cisco CEO John Chambers has said that the IT industry in in for some “brutal” consolidation with perhaps only two or three of the top five companies standing in five years. Alcatel-Lucent may be vanishing if Nokia’s offer to swallow the company up is approved.“The market is playing out just as we expected,” Chambers said during an exclusive interview with Network World at Cisco IT Data Center Day here. “It’s going to be brutal, with some musical chairs. They missed market transitions so now they have to move rapidly.”To read this article in full or to leave a comment, please click here

43% of Slashdotters call ISPs liars

I know what you’re thinking: Only 43%?But we’re talking here about a single question: “How do your actual ISP speeds compare to the advertised speed?”And as you can see from the screen capture of the poll results above, roughly four in 10 of some 5,000 Slashdotters who bothered to weigh in say their actual speeds are slightly lower or significantly lower than what their ISPs advertise.Yes it’s an online poll and hence a self-selected sample, but these are people who by and large care more and are better equipped to make this judgment than other ISP customers.To read this article in full or to leave a comment, please click here

Transition to IP network creates cybersecurity challenges for FAA

The Internet hasn’t totally invaded the nation’s air traffic control system, but as it does the Federal Aviation Administration faces a growing challenge to make sure the network is locked down secure.The security issues arise as the agency moves from a point-to-point legacy air traffic control structure to a new IP-based system commonly known as NextGen or Next Generation Air Transportation System. NextGen in a nutshell will move the current radar-based air traffic system to one that is based on satellite navigation and automation.+More on Network World: The most magnificent high-tech flying machines+To read this article in full or to leave a comment, please click here

Transition to IP network creates cybersecurity challenges for FAA

The Internet hasn’t totally invaded the nation’s air traffic control system, but as it does the Federal Aviation Administration faces a growing challenge to make sure the network is locked down secure.The security issues arise as the agency moves from a point-to-point legacy air traffic control structure to a new IP-based system commonly known as NextGen or Next Generation Air Transportation System. NextGen in a nutshell will move the current radar-based air traffic system to one that is based on satellite navigation and automation.+More on Network World: The most magnificent high-tech flying machines+To read this article in full or to leave a comment, please click here

Pure Storage CEO promises huge savings with flash

The term 'disruption' gets tossed about a lot -- too often -- in the technology industry. But it isn't always hype. Backed by nearly half a billion dollars in investment, CEO Scott Dietzen and Pure Storage are hard at work disrupting a big chunk of the enterprise storage market owned by the likes NetApp and EMC, which is no stranger to disruption itself, having turned the tables on a previous generation of storage leaders.I had the opportunity to talk to [EMC CEO] Joe Tucci a couple of months back and I asked him about flash. I'm paraphrasing him here, but he describes a world where there's a role for tape, disk, flash. Do customers still buy that?To read this article in full or to leave a comment, please click here(Insider Story)

Another Quad CCIE in downunder

Is it possible to study a PhD, CCIE Data Center with a full time job? Absolutely YES, I have been there and done that. I also went on 5 work related overseas trips  and 2-3 weeks on holiday, driven around the country town in Australia. If someone tells you that they saw a ghost and […]

Yahoo reportedly close to purchasing Foursquare

In an effort to boost its mobile offerings, Yahoo is reportedly finishing up a deal to buy Foursquare.Foursquare’s search app can be used to as a local city guide to find shops, restaurants and other points of interest. The startup also created the social networking app Swarm, which allows people to check-in at locations and see if friends are nearby.The deal, which would be worth around US$900 million, has been agreed to and the companies are now working through details, according to sources cited by TechCrunch. However, other sources said they had no knowledge of the deal.To read this article in full or to leave a comment, please click here

For Microsoft, hardware and OS consistency key in Surface 3

With the upcoming Surface 3, Microsoft is ending experimentation and bringing back hardware and OS consistency across its line of tablets, hoping that consumers and businesses will find a lot to like.The Surface 3 is radically different than its predecessor, Surface 2, which had an ARM processor and the tablet-specific Windows RT OS. The Surface 3 sports a full Windows 8.1 OS and an Intel x86 processor, which is the combination available in most PCs and laptop-tablet hybrids today.The Surface 3, which has a 10.8-inch screen, is a thinner and lighter version of Surface Pro 3 and can offer longer battery life, said Brian Eskridge, senior manager for Microsoft’s Surface products.To read this article in full or to leave a comment, please click here

Huawei’s P8 and P8max get all-metal designs, improved camera

Huawei Technologies is betting its all-metal P8 and the P8max will help the company make further inroads into the high end of the smartphone market.Following in the footsteps of the Galaxy S6 and S6 Edge from Samsung Electronics and the HTC One M9 is no easy feat, but Huawei is hoping it has developed a product that can compete with those devices.The P8 has a 5.2-inch, 1080-by-1920-pixel screen and is powered by a HiSilicon Kirin 64-bit processor with eight cores running at 1.5GHz or 2GHz. It has 16GB or 64GB of integrated storage and 3GB of RAM. The integrated storage can be expanded using a microSD card.Huawei has also worked to make the P8 look more premium. The device has an all-aluminum unibody that’s just 6.4 millimeters thick.To read this article in full or to leave a comment, please click here

Curious About ONUG? Wonder What It Is?

ONUG Logo

In case you’re interested in ONUG or wondering what the heck ONUG stands for, I write a short post called What Is An “ONUG” over at GestaltIT. I’m not going to duplicate it here, so please do the clicky over to GestaltIT and have a read. Bonus: there’s a registration discount code over there as well! Hope you enjoy it; ONUG looks like it’ll be very interesting.

 

Disclosure

My post at GestaltIT is a sponsored post as part of the ONUG Spring 2015 Tech Talk Series, part of the larger Tech Talks series.

If you liked this post, please do click through to the source at Curious About ONUG? Wonder What It Is? and give me a share/like. Thank you!

Clearing FUDDY Waters

Wave goodbye to slow Wi-Fi. Wave 2 of 802.11ac is here and now, adding new capabilities that improve overall Wi-Fi system performance and capacity. So don’t be put off by naysayers spewing FUD that Wave 2 APs won’t add immediate...
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