Information Technology

How to Install Canvas LMS on Ubuntu 18.04

canvas-lms

Getting  Canvas LMS Pre-installed If you want to skip the installation of Canvas LMS and purchase a pre-installed VPS Canvas already installed, or alternatively, have a secure instance of Canvas LMS hosted on your own domain, please contact me by email  (joseph@ripplesoftware) or via contact page for more details. The full instructions for installing Canvas LMS on your own Ubuntu 18.04 server are below. Installing Canvas LMS on Ubuntu 18.04 8GB of ram is recommended for a server running Canvas LMS. However, it is possible that you can install and run Canvas LMS on a server with only 4GB or less. This installation was done on a Digital Ocean Ubuntu 18.04 VPS. Be sure to point your domain’s name-servers at your correct cloud host and edit your DNS networking so that your domain is pointed at your server before you begin. You can check using nslookup command as shown below….

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Update PHP 7.x to 7.4 CentOS 7 Remi Repo

WordPress 5.4 has been reminding admins to update PHP to 7.4.  Even if you are on PHP 7.1 you will receive the message in your dashboard.  Here are the instructions to upgrade from PHP 7.1 Remi Repo on Centos 7. READ FIRST — IMPORTANT !!! Get a complete backup snapshot of your server before you complete these update steps 1. First thing you should do is do any core OS updates and package updates. # yum update -y   2. Check which version of PHP you are currently running. # php -v PHP 7.1.33 (cli) (built: Oct 26 2019 10:16:23) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies   3. Print a list to see all the PHP packages you have installed. You will need to replace all these packages in PHP 7.4. You should copy this list to a file…

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3D Printing Solutions for COVID-19

A serious potential drawback of the just-in-time economy (JIT) is that when the demand for critical supplies increase sharply, that supply is not immediately available, which in the current corporate cluster-fuck known as COVID-19 leaves our front-line health care staff with a broomstick jammed so far up their arse that you can follow them around like Hansel and Grettel from the ass blood they are hemorrhaging down onto the floor they walk on. Personal protective equipment (PEE) is critical to public health-care staff and sadly many of these hero’s lives have already been lost during the ongoing COVID-19 crisis due to supply chain short comings. In some ways, 3D printing has proven itself to be more agile during this crisis.  For one, the 3D printer allows production of a wider array of products than any other single device.  For example, during the COVID-19 outbreak, 3D printing companies were immediately able…

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Enjoy Android apps on Chromebooks?

Digitimes research Group has posted their forecast for chrome books in 2014. According to their expectations chrome book sales going strengthen in the next few years. James Kendrick at ZDNet also reported his expectation that chrome books will be able to use android apps back in January 2013. This is exciting proposition and not only completely logical but I would expect that chrome book sales completely depend on their ability to use android apps. Obviously the number of android apps, is high and help android smartphone due to network effects. Although a lot of your Java code can be reused if you’re to just repackage your app for Chrome OS, number of available apps on Chrome OS could instantly multiply without increasing developer workload. I think the experience of running an android app on Chrome OS would be suitable for the user, and would instantly increase the chrome OS network…

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A final word about the CNT disruption

In order to assess the ability to respond to the disruption of CNT technology, I have prepared a box score for vulnerability to potential disruptive threat assessment below. The resulting conclusion is that costs are the biggest factor affecting the semiconductor industries ability to react. As mentioned in question 1, the high costs associated with R&D and manufacturing in the semiconductor industry means that current facilities need to be planned well ahead of time. Uncertainty, risk, and complexity also make semiconductor road mapping tricky business. Box Score for vulnerability to disruptive technology threat – Semiconductor Manufacturing Firms Denial – 0 History – 0 Resistance to Change – 0 Mind Set – 0 Brand – 0 Sunk Costs – 10 Profitability – 10 Lack of Imagination – 0 The factors I will discuss therefore are: (1) costs and (2) uncertainty. Sunk costs problem implies that firms will not want to migrate…

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More about the CNT Disruption

The industry I have chosen to investigate, and claim will be a big disruption in the future – although it isn’t poised for market yet – is the carbon nanotube (CNT) processor. Carbon nano technology was highlighted as a disruptive technology in a May 2013 report from McKinsey Quarterly (Manyika, 2013). The reason I believe it will be disruptive is because carbon nano processors have the potential to be much more energy efficient and compact (per processing capacity) than silicon based transistors. The infamous Moore’s Law has accurately predicted the improvements of silicon based semiconductor technology since it was stated by Moore in 1965 (Moore, 1965). While 9nm silicon chips are manufactured today, the the inherent quantum limitations posed by silicon-based semiconductor technology threaten to cause the development pace to drop below Moore’s expected level of improvement by 2020 at the 7nm scale (Merritt, 2013). On the other hand, a…

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In order to ‘catch the wave’ of CNT technology, firms in the semiconductor industry will need to morph their business model to accommodate competition and new opportunities. The reason that I say “morph” the business model, instead of radically change it, is because the shift to CNT from silicon is not here yet, it is a long process forthcoming, and the shift will entail many years of extensive forecasting and planning. The stakes are high for semiconductor developers and manufacturers, so a careful balance between maintaining strong revenue streams, and investing it into R&D is more realistic strategy than a ‘flip the switch’ type of strategy. Although it is less likely that a new player will suddenly emerge onto the field and eat lunches (like Netflix is doing in online media) because of the high barrier to entry, patent activity should be carefully monitored and assessed to judge the relative…

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