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Category Archives for "Networking"

40% off Inateck USB 3.0 to IDE/SATA Hard Drive Adapter – Deal Alert

This USB 3.0 adapter from Inateck can interface with up to three drives simultaneously. It is compatible with 2.5"/3.5" IDE/SATA hard drives and 5.25" IDE/SATA CD/DVD drives, and features a one-touch backup function. Use it to read an old internal drive from a crashed computer, or to use an internal drive similar to an external backup drive. You might find a lot of uses for this one. The typical list price of $47.99 has been reduced on Amazon 40% right now to $28.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

19% off TaoTronics LED Dimmable Touch Control Desk Lamp with USB Charging – Deal Alert

This desk lamp from TaoTronics features a sleek and minimalistic design with no buttons to speak of, thanks to its creative touch sensitive panel, for control over 5 brightness settings and another 5 color temperature settings (25 light combinations). Also features a USB port equipped with the iSmart technology for safer and faster charging. The LED reflects the light sideways and produces a strain-free light beam that doesn’t harm your eyes. The light averages 4.8 out of 5 stars from over 675 reviewers on Amazon (90% rate a full 5 stars: see reviews), where its typical list price of $36.99 has been reduced 19% to $29.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

IDG Contributor Network: How to overcome recruitment demands in Industrial Internet of Things sector

Over the years, there have been disruptive changes taking place across industries as well as business models, which in turn, has largely affected the skill requirements, content generation, evaluation and quality of jobs across the globe. Several surveys have enunciated a very new yet interesting trend which reflects the hike in expectations across the Industrial Internet of Things (Industrial IoT, or IIoT) sector when it comes to hiring new recruits, discussing the in-demand job compensations and, the level of productivity as expected by the recruiters and to some extent the job seekers as well. In fact, recruitment demands have come a long way across different Industrial IoT sectors, including energy, healthcare, finances, entertainment, information technology, automobile, professional services, communication, media and so on.To read this article in full or to leave a comment, please click here

IoT is everywhere

Technology pundits are often given to hyperbole, but when they claim that the Internet of Things (IoT) is changing everything, they may have a point. At least, the IoT is being used in just about everything you can think of, from deeply geeky applications such as industrial sensors to frivolous gimmicks like Wi-Fi enabled toothbrushes.Don’t believe me? Let’s take a look at some of the many, many different IoT use cases that people are actually using—or at least testing.Fitness wearables: IoT is the key concept powering wearables from fitness trackers to smartwatches, but keeping weekend warriors fit is only the beginning. Elite athletes and professional sports franchises are using IoT to push their performance parameters. At the other end of the spectrum, IoT can track your pet’s location and health.To read this article in full or to leave a comment, please click here

Capture w/Trace in Firepower Threat Defense

A few days ago I wrote an article demonstrating the Packet Tracer feature for troubleshooting Firepower Threat Defense. Another very cool tool for troubleshooting is the Capture w/Trace Feature. The power of this tool comes from both capturing a PCAP file (for Wireshark or your tool of choice) and a separate window pane that has a view of the device operation (very similar to the Packet Tracer output).

Similar to Packet Tracer, to initiate Capture w/Trace in the Firepower Management Console, choose ‘Devices‘ then ‘Device Management‘. Next, select the device that you want to perform the operation and select the icon that looks like a screwdriver and wrench.

DevDevMgmt

Note to reader: All Firepower can be accessed by clicking here (or choosing Firepower from the menu at the top of the page).

This will produce the screen that provides health monitoring and troubleshooting for the device. Selecting “Advanced Troubleshooting” will change the view to a multi-tab troubleshooting screen.

AdvTroubleshoot

Select the Capture w/Trace tab. The Add Capture button will allow for selection of filter criteria for the capture.

CapturewTrace

Add Capture

AddCapture

After filling out this information and choosing “Save“, an entry will be created for Continue reading

Worth Reading: The Internet and Trust

This narrative refers to the understanding that trust mitigates the basic uncertainties that the Internet architecture has imposed upon its operators since its inception. To this day, network engineers cannot generally be certain about the validity of the routing announcements that they receive from interconnected networks, and they have little insight into the legitimacy of the traffic that they are mandated to transmit. Historically, network operators knew and trusted one another, and, as a result, the Internet worked in spite of its uncertainties. —APNIC

The post Worth Reading: The Internet and Trust appeared first on rule 11 reader.

Now you can get a bachelor’s degree in data center engineering

In an era where all the hot tech jobs seem to focus on application development and cloud computing, it can be hard to find fresh data center engineering talent. The Institute of Technology in Sligo, Ireland, is trying to rewrite that story with a new Bachelors Degree in Data Center Facilities Engineering, starting this fall.According to the school, “The purpose of this new engineering degree programme is to provide the Data Centre industry with staff who are qualified to provide the proficient and in-depth skills necessary for the technical management and operation of data centre facilities. Expert operation and maintenance of these facilities is crucial in order to maintain 24/7 services with optimum energy efficiency.”To read this article in full or to leave a comment, please click here

Random Thoughts on Grey Failures and Scale

I have used the example of increasing paths to the point where the control plane converges more slowly, impacting convergence, hence increasing the Mean Time to Repair, to show that too much redundancy can actually reduce overall network availability. Many engineers I’ve talked to balk at this idea, because it seems hard to believe that adding another link could, in fact, impact routing protocol convergence in such a way. I ran across a paper a while back that provides a different kind of example about the trade-off around redundancy in a network, but I never got around to actually reading the entire paper and trying to figure out how it fits in.

In Gray Failure: The Achilles’ Heel of Cloud-Scale Systems, the authors argue that one of the main problems with building a cloud system is with grey failures—when a router fails only some of the time, or drops (or delays) only some small percentage of the traffic. The example given is—

  • A single service must collect information from many other services on the network to complete a particular operation
  • Each of these information collection operations represent a single transaction carried across the network
  • The more transactions there are, the Continue reading
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