The best way to learn Docker for Free: Play-With-Docker (PWD)

Last year at the Distributed System Summit in Berlin, Docker captains Marcos Nils and Jonathan Leibiusky started hacking on an in-browser solution to help people learn Docker. A few days later, Play-with-docker (PWD) was born. 

PWD is a Docker playground which allows users to run Docker commands in a matter of seconds. It gives the experience of having a free Alpine Linux Virtual Machine in browser, where you can build and run Docker containers and even create clusters in Docker Swarm Mode. Under the hood Docker-in-Docker (DinD) is used to give the effect of multiple VMs/PCs. In addition to the playground, PWD also includes a training site composed of a large set of Docker labs and quizzes from beginner to advanced level available at training.play-with-docker.com.

In case you missed it, Marcos and Jonathan presented PWD during the last DockerCon Moby Cool Hack session. Watch the video below for a deep dive into the infrastructure and roadmaps.

Over the past few months, the Docker team has been working closely with Marcos, Jonathan and other active members of the Docker community to add new features to the project and Docker labs to the training section.

PWD: the Playground

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Will IoT party like 1999?

After I read Brian Bailey’s IoT semiconductor design article, IoT Myth Busting, I thought of Prince’s song 1999, in particular, the line: “So tonight I'm gonna party like it's nineteen ninety-nine.”  Without a lot of irrational exuberance, we won’t see IoT edge and fog networks soon Most IoT applications are prototypes and proof of concepts (PoC) designed to justify enterprise budget increases and follow-on venture investment rounds. Unless we return to and party like it is 1999 when telecoms over-invested in capacity ahead of demand, the telecom carriers are not going to build the new fog and edge networks that IoT needs to grow ahead of demand. At this stage, we would have to see a return of the irrational exuberance, a term coined by Federal Reserve Chairman Alan Greenspan, used to describe the over investment and over valuation during the dot-com bubble.To read this article in full or to leave a comment, please click here

Will IoT party like 1999?

After I read Brian Bailey’s IoT semiconductor design article, IoT Myth Busting, I thought of Prince’s song 1999, in particular, the line: “So tonight I'm gonna party like it's nineteen ninety-nine.”  Without a lot of irrational exuberance, we won’t see IoT edge and fog networks soon Most IoT applications are prototypes and proof of concepts (PoC) designed to justify enterprise budget increases and follow-on venture investment rounds. Unless we return to and party like it is 1999 when telecoms over-invested in capacity ahead of demand, the telecom carriers are not going to build the new fog and edge networks that IoT needs to grow ahead of demand. At this stage, we would have to see a return of the irrational exuberance, a term coined by Federal Reserve Chairman Alan Greenspan, used to describe the over investment and over valuation during the dot-com bubble.To read this article in full or to leave a comment, please click here

Worth Reading: The Value of DRM Locks

My co-authors and I at the University of Glasgow are investigating how restrictions on interoperability imposed by Digital Rights Management (DRM) systems might impact the market for goods. We are doing this as part of a larger project to better understand the economics of DRM and to figure out what changes would likely occur if the laws were reformed. Our recent working paper is titled ‘How much do consumers value interoperability: Evidence from the price of DVD players’. —EFF

The post Worth Reading: The Value of DRM Locks appeared first on rule 11 reader.

Unix: How random is random?

On Unix systems, random numbers are generated in a number of ways and random data can serve many purposes. From simple commands to fairly complex processes, the question “How random is random?” is worth asking.EZ random numbers If all you need is a casual list of random numbers, the RANDOM variable is an easy choice. Type "echo $RANDOM" and you'll get a number between 0 and 32,767 (the largest number that two bytes can hold).$ echo $RANDOM 29366 Of course, this process is actually providing a "pseudo-random" number. As anyone who thinks about random numbers very often might tell you, numbers generated by a program have a limitation. Programs follow carefully crafted steps, and those steps aren’t even close to being truly random. You can increase the randomness of RANDOM's value by seeding it (i.e., setting the variable to some initial value). Some just use the current process ID (via $$) for that. Note that for any particular starting point, the subsequent values that $RANDOM provides are quite predictable.To read this article in full, please click here

Unix: How random is random?

On Unix systems, random numbers are generated in a number of ways and random data can serve many purposes. From simple commands to fairly complex processes, the question “How random is random?” is worth asking.EZ random numbers If all you need is a casual list of random numbers, the RANDOM variable is an easy choice. Type "echo $RANDOM" and you'll get a number between 0 and 32,767 (the largest number that two bytes can hold).$ echo $RANDOM 29366 Of course, this process is actually providing a "pseudo-random" number. As anyone who thinks about random numbers very often might tell you, numbers generated by a program have a limitation. Programs follow carefully crafted steps, and those steps aren’t even close to being truly random. You can increase the randomness of RANDOM's value by seeding it (i.e., setting the variable to some initial value). Some just use the current process ID (via $$) for that. Note that for any particular starting point, the subsequent values that $RANDOM provides are quite predictable.To read this article in full or to leave a comment, please click here

Unix: How random is random?

On Unix systems, random numbers are generated in a number of ways and random data can serve many purposes. From simple commands to fairly complex processes, the question “How random is random?” is worth asking.EZ random numbers If all you need is a casual list of random numbers, the RANDOM variable is an easy choice. Type "echo $RANDOM" and you'll get a number between 0 and 32,767 (the largest number that two bytes can hold).$ echo $RANDOM 29366 Of course, this process is actually providing a "pseudo-random" number. As anyone who thinks about random numbers very often might tell you, numbers generated by a program have a limitation. Programs follow carefully crafted steps, and those steps aren’t even close to being truly random. You can increase the randomness of RANDOM's value by seeding it (i.e., setting the variable to some initial value). Some just use the current process ID (via $$) for that. Note that for any particular starting point, the subsequent values that $RANDOM provides are quite predictable.To read this article in full or to leave a comment, please click here

Unix: How random is random?

On Unix systems, random numbers are generated in a number of ways and random data can serve many purposes. From simple commands to fairly complex processes, the question “How random is random?” is worth asking.EZ random numbers If all you need is a casual list of random numbers, the RANDOM variable is an easy choice. Type "echo $RANDOM" and you'll get a number between 0 and 32,767 (the largest number that two bytes can hold).$ echo $RANDOM 29366 Of course, this process is actually providing a "pseudo-random" number. As anyone who thinks about random numbers very often might tell you, numbers generated by a program have a limitation. Programs follow carefully crafted steps, and those steps aren’t even close to being truly random. You can increase the randomness of RANDOM's value by seeding it (i.e., setting the variable to some initial value). Some just use the current process ID (via $$) for that. Note that for any particular starting point, the subsequent values that $RANDOM provides are quite predictable.To read this article in full or to leave a comment, please click here

Hyper-converged infrastructure – Part 1 : Is it a real thing ?

Recently I was lucky enough to play with Cisco Hyperflex in a lab and since it was funny to play with, I decided to write a basic blog post about the hyper-converged infrastructure concept (experts, you can move forward and read something else ? ). It has really piqued my interest. I know I may be […]

The post Hyper-converged infrastructure – Part 1 : Is it a real thing ? appeared first on VPackets.net.

IBM touts full data encryption in new Z series mainframes

IBM has introduced the 14th generation of its Z series mainframes, which still sell respectably despite repeated predictions of their demise. One of the major features being touted is the simple ability to encrypt all of the data on the mainframe in one shot. The mainframe, called IBM Z or z14, introduces a new encryption engine that for the first time will allow users to encrypt all of their data with one click—in databases, applications or cloud services—with virtually no impact on performance.The new encryption engine is capable of running more than 12 billion encrypted transactions every day. The mainframe comes with four times more silicon for processing cryptographic algorithms over the previous generation mainframe along with encryption-oriented upgrades to the operating system, middleware and databases.  To read this article in full or to leave a comment, please click here

IBM touts full data encryption in new Z series mainframes

IBM has introduced the 14th generation of its Z series mainframes, which still sell respectably despite repeated predictions of their demise. One of the major features being touted is the simple ability to encrypt all of the data on the mainframe in one shot. The mainframe, called IBM Z or z14, introduces a new encryption engine that for the first time will allow users to encrypt all of their data with one click—in databases, applications or cloud services—with virtually no impact on performance.The new encryption engine is capable of running more than 12 billion encrypted transactions every day. The mainframe comes with four times more silicon for processing cryptographic algorithms over the previous generation mainframe along with encryption-oriented upgrades to the operating system, middleware and databases.  To read this article in full or to leave a comment, please click here

IBM touts full data encryption in new Z series mainframes

IBM has introduced the 14th generation of its Z series mainframes, which still sell respectably despite repeated predictions of their demise. One of the major features being touted is the simple ability to encrypt all of the data on the mainframe in one shot. The mainframe, called IBM Z or z14, introduces a new encryption engine that for the first time will allow users to encrypt all of their data with one click—in databases, applications or cloud services—with virtually no impact on performance.The new encryption engine is capable of running more than 12 billion encrypted transactions every day. The mainframe comes with four times more silicon for processing cryptographic algorithms over the previous generation mainframe along with encryption-oriented upgrades to the operating system, middleware and databases.  To read this article in full or to leave a comment, please click here

IBM touts full data encryption in new Z series mainframes

IBM has introduced the 14th generation of its Z series mainframes, which still sell respectably despite repeated predictions of their demise. One of the major features being touted is the simple ability to encrypt all of the data on the mainframe in one shot. The mainframe, called IBM Z or z14, introduces a new encryption engine that for the first time will allow users to encrypt all of their data with one click—in databases, applications or cloud services—with virtually no impact on performance.The new encryption engine is capable of running more than 12 billion encrypted transactions every day. The mainframe comes with four times more silicon for processing cryptographic algorithms over the previous generation mainframe along with encryption-oriented upgrades to the operating system, middleware and databases.  To read this article in full or to leave a comment, please click here

Jet Propulsion Lab’s IT CTO tells enterprises how to network IoT

The internet of things combined with cloud computing is the platform for innovation that is used by NASA’s Jet Propulsion Laboratory and that should be used by enterprises, but it means setting up the right network infrastructure, JPL’s IT CTO says.“Number one, build an IoT network that’s separate from the regular network,” says Tom Soderstrom, the JPL IT CTO. “That’s what we did, and we found that it was amazing.”To read this article in full or to leave a comment, please click here

Jet Propulstion Lab’s IT CTO tells enterprises how to network IoT

The internet of things combined with cloud computing is the platform for innovation that is used by NASA’s Jet Propulsion Laboratory and that should be used by enterprises, but it means setting up the right network infrastructure, JPL’s IT CTO says.“Number one, build an IoT network that’s separate from the regular network,” says Tom Soderstrom, the JPL IT CTO. “That’s what we did, and we found that it was amazing.”To read this article in full or to leave a comment, please click here

NASA’s CTO tells enterprises how to network IoT

The internet of things combined with cloud computing is the platform for innovation that is used by NASA’s Jet Propulsion Laboratory and that should be used by enterprises, but it means setting up the right network infrastructure, JPL’s CTO says.“Number one, build an IoT network that’s separate from the regular network,” says Tom Soderstrom, the JPL CTO. “That’s what we did, and we found that it was amazing.”To read this article in full or to leave a comment, please click here

47% off Mpow Fully Submersible Waterproof Phone Dry Bag, 2-Pack – Deal Alert

For extreme conditions, this phone pouch features a simple snap and lock design that easily keeps out water, snow, dust, sand, and dirt, without hindering use of touch-screen or camera. It fits all large smartphones up to 6 inches, as well as your cash, documents, credit cards, or any similar sized items you need safe from the elements while outdoors. The 2-pack's typical list price of $16.99 has been reduced 47% right now to $8.99. See this deal on Amazon.To read this article in full or to leave a comment, please click here

IBM wants you to encrypt everything with its new mainframe

IBM wants businesses to use its new z14 mainframe to encrypt pretty much everything -- an approach to security it calls pervasive encryption.Encrypting everything, and restricting access to the keys, is one way to reduce the risk and impact of data breaches. It can reduce the threat surface by 92 percent, according to research commissioned by IBM.To make such pervasive encryption viable, the z14 has four times as much silicon devoted to cryptographic accelerators as its predecessor, the z13, giving it seven times the cryptographic performance.To read this article in full or to leave a comment, please click here

IBM wants you to encrypt everything with its new mainframe

IBM wants businesses to use its new z14 mainframe to encrypt pretty much everything -- an approach to security it calls pervasive encryption.Encrypting everything, and restricting access to the keys, is one way to reduce the risk and impact of data breaches. It can reduce the threat surface by 92 percent, according to research commissioned by IBM.To make such pervasive encryption viable, the z14 has four times as much silicon devoted to cryptographic accelerators as its predecessor, the z13, giving it seven times the cryptographic performance.To read this article in full or to leave a comment, please click here

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