many users find a sense of pride in their unique configuration settings and want an easy way to share them with friends. That’s where rcm steps in.
rcm is a “rc” file management suite (“rc” is another convention for naming configuration files that has been adopted by some GNU/Linux programs like screen or bash). rcm provides a suite of commands to manage and list files it tracks. Install rcm using dnf.
2019/01/11: "Born-in the Cloud" workloads might be designed to be platform-agnostic now, but that doesn't mean it will always be the case, as hyperscalers like Amazon Web Services and Microsoft Azure continue to add specific and unique functionality to their hosted services.
let’s look at the different ways in which we could output text in the terminal.
2019/01/04: a master list of topics related to the use of new technologies in education of potential operational relevance to the World Bank in its strategic advice, lending activities and research going forward
2019/01/01: The next revolution will be the ascent of analog systems over which the dominion of digital programming comes to an end. Nature’s answer to those who sought to control nature through programmable machines is to allow us to build machines whose nature is beyond programmable control.
2018/11/26: a wake effect from upwind wind farms that can reduce the energy production of downwind neighbor turbines. We highlight the need for coordinated development and awareness of the big picture to maximize wind energy generation nationwide.
2018/12/07: why the U.S. and its allies are apprehensive of using Huawei's products:
1. There could be "kill switches" in Huawei equipment.
2. ... That even close inspections miss.
3. Back doors could be used for data snooping.
4. The rollout of 5G wireless networks will make everything worse.
5. Chinese firms will ship tech to countries in defiance of a US trade embargo.
6. Huawei isn't as immune to Chinese government influence as it claims to be.
2018/12/19: scientists are discovering subsurface microbial beings that shake up what we think we know about life. Archaea and bacteria make up the majority of life in the deep subsurface, and it’s estimated that there are more of these kinds of microbes below ground than above.
Some 200 to 600 octillion microbes live beneath our continents, suggests an analysis of data from sites all over the world, and even more live beneath the seafloor. Together they weigh the equivalent of up to 200 million blue whales — and far more than all 7.5 billion humans. Subterranean diversity rivals that of the surface, with most underground organisms yet to be discovered or characterized.
There are basically two kinds of feeders in the deep subsurface. Some scavengers survive on leftovers of photosynthesis from the surface that have been buried for up to hundreds of millions of years.
“We are familiar with oxygen breathing, but the microorganisms have multiple options,” said Isabelle Daniel, a geobiologist at Université Claude Bernard Lyon in France.
Candidatus Desulforudis audaxviator, the cobalt, rod-shaped bacteria in the picture above, breathes what’s released when certain rocks meet water: “You take a rock. Put it with water. Heat it up a bit, not even extreme heat, and it will produce everything that life needs to go,” said Karen Lloyd, a microbiologist at the University of Tennessee, Knoxville.
Other microbes even breathe uranium and expel the waste as teeny crystals.
Subsurface microbes might only reproduce every thirty years, or take even longer. If nutrients run low, the microbes enter a dormant stage and focus the little energy they have on maintenance.
They’ll reproduce when some other energy source comes along — and that takes time, perhaps geological time. It can take tens to thousands of years for a new population to replace an old one.
2018/12/21: In this post I want to lay out the way we leverage Kubernetes to automate much of our deployment process, using https://snapcraft.io
as an example.
2018/12/20: DevOps is about streamlining development and optimizing operations to enhance service delivery while decreasing the time it takes to design, build, deploy, and support applications.
The three main approaches to achieving a DevOps operating model outlined in this paper. They are:
Traditional application acceleration: Applying Six Sigma theory to the IT Operating Model.
Native cloud application deployment: Deploying SaaS, PaaS, and FaaS application services.
Cloud native application development: Implementing Cloud Foundry technology.
All three create a tight integration between the Development and Operations teams and increase the release to production. Now comes the Cloud Native approach which provides significant new power to the development group over Operations functions. This shift in power is often met with resistance from the Operations group.
2018/12/20: If the point of Musk’s overly complex system is to move actual people, not cars (which he also happens to sell), this is a very bad idea. Some quick math shows why: Musk claims the tunnel will have the capacity of moving 4,000 cars per hour at 155 mph — that would require having cars enter and leave the tunnel via an elevator once every 0.9 seconds. But existing underground freeway alternatives (aka subways) can move 30,000 passengers an hour, more than if every 5-seater Tesla was full and Musk somehow figured out the capacity issues.
Musk says his new underground highway idea, if fully realized, would feel like “teleporting within a city.”
Musk isn’t just looking below ground for new superfast transportation methods. He is also currently developing a goddamn passenger rocket to take you from New York to Shanghai in 39 minutes. And yes! That rocket will be a whole lot more efficient than present-day rockets, but it’s still a ROCKET.
If you make flying faster and make driving in the Los Angeles area less painful, you’ll likely just end up with more flights and more cars on the road. We see this whenever a city tries to alleviate traffic by adding more lanes. More people start driving. And rocket flights and more cars on the road will eat up an awful lot of our planet’s remaining carbon budget.
Musk is embarking on a philosophy of ecomodernism — the idea that doing what we’ve been doing (except more so!) will lead society down to a techno-fueled decoupling of the economy from environmental constraints. Musk’s bet is that by radically increasing efficiency of mundane industrial tasks — building cars, digging holes, making batteries — it will help usher in a carbon-free utopia.
If Musk’s goal is (as he says) to save the world from climate change, many of his “innovations” are not helping. Decades of evidence shows that making more cars and building our cities to accommodate them are bad ideas for almost everyone. Even factoring in the additional time cost of walking or riding your bike, it’s nearly always cheaper compared to driving.
All of these greener transportation technologies have been in use for more than 100 years — it’s the cars that have been the problem, not the answer. Musk’s tunnels could be a game changer, but only if they’re digging more subway lines.
2018/12/11: a homebrew 6502-based microcomputer. I have a lot of ideas for features I’d like, but before I make too many crazy decisions I’d like to solidify my understanding of the processor I’m building the whole system around.
2018/12/17: Open data in Ukraine is also beginning to be recognised for its potential economic value. Research by Kyiv School of Economics estimates that open data contributes between $746 and $903m to the Ukrainian economy currently and can increase to $1.4b or 0.84% of GDP by 2025. Realising the maximum economic value of open data to Ukraine’s economy will require sustained investment and high level political support.
2018/12/04: If chatbots are approaching the stage where they can answer diagnostic questions as well or better than human doctors, then it’s possible they might eventually reach or surpass our levels of political sophistication. And it is naïve to suppose that in the future bots will share the limitations of those we see today: They’ll likely have faces and voices, names and personalities — all engineered for maximum persuasion. So-called “deep fake” videos can already convincingly synthesize the speech and appearance of real politicians.
Unless we take action, chatbots could seriously endanger our democracy, and not just when they go haywire.
The most obvious risk is that we are crowded out of our own deliberative processes by systems that are too fast and too ubiquitous for us to keep up with. Who would bother to join a debate where every contribution is ripped to shreds within seconds by a thousand digital adversaries?
2018/12/17: First, people all over the world pay for communication services. We regularly pony up for Netflix, HBO Go, and Amazon Prime on top of sizable monthly payments for cell phone plans. A Facebook, YouTube, or Twitter without a bloated ad infrastructure could likely charge far less than these other services, which after all have to buy or produce their content. Before WhatsApp was acquired by Facebook, it charged users $1 per year, and it was growing like a vine.
2018/07/16: Machine Learning is eliminating the time wasted in traditional programming and instead gets computers to program themselves. In a nutshell – machine learning is like farming; nutrient is the main data, gardener is the farmer, seed is the algorithm while the plant is the program.
Thus the key areas machine learning plays its critical role is:
Computational biology – designing remedy to diseases or simply drugs;
Breeding and coming up with ideal traits;
Predicting the climate change;
Robotics and auto driven tractors
Soil nutrient evaluation; among others
2018/12/15: Either the subway or the highway option for the pedestrian is a solution that only an essentially anti-democratic society could have come up with.
We need to recognise that those who walk to work or to a point where they can access public transport constitute more than 60% of daily commuters. Let us also remember these are people going to work, children going to schools, young people travelling to colleges and universities, or home makers walking to the neighbourhood market or to pick-up their children from school.
2018/12/13: The top scholars of the news media say that a right to control links will only cement the dominance of the legacy news media, while weakening the press overall. The world's most renowned technologists say that copyright filters are a stupid, dangerous, unworkable idea that is doomed to fail.
So Voss had to come up with "compromises" that would allow him to convince fellow MEPs that things weren't that bad. For example, he expunged all mention of "filters" from the filter rule, but still made it impossible for companies to avoid filters. He also allowed for minor exemptions for "microenterprises" that would maybe get some of them out from under the necessity of having filters.
These figleafs didn't fool his opponents, but they did let him advance the Directive through the Parliament and into the trilogue negotiations. However, the big rightsholder organisations hated even the appearance of compromise, and so first the movie companies and sports leagues denounced the Directive and asked to have their products removed from its scope, and then the music industry (who have been the strongest proponents of filters) completely condemned the process and called for a restart.
2013/01/14: Then, unfortunately, the data people took XML and decided that it solved their problems. So we got configuration files in XML, databases in XML, and so on. Some of these applications did ok. Storing data in XML for long-term interoperability is an acceptable use of XML. Indeed, XML is supported by virtually all programming languages and that is unlikely to change.
However, XML as a technology for databases was supposed to solve new problems. All major database vendors added support for XML. DBAs were told to learn XML or else… We also got handfuls of serious XML databases. More critically, the major database research conferences were flooded with XML research papers.
And then it stopped.
2018/12/12: a patent application from Amazon became public that would pair face surveillance — like Rekognition, the product that the company is aggressively marketing to police and Immigration and Customs Enforcement — with Ring, a doorbell camera company that Amazon bought earlier this year.