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How to Set Up a Linux Server on Amazon AWS

AWS (Amazon Web Services) is one of the leading cloud server providers worldwide. You can set up a server within a minute using the AWS platform. On AWS, you can fine tune many techncal details of your server like the number of CPU’s, Memory and HDD space, type of HDD (SSD which is faster or a classic IDE) and so on. And the best thing about the AWS is that you need to pay only for the services that you have used.

To get started, AWS provides a special account called “Free tier” where you can use the AWS technology free for one year with some minor restrictions like you can use the server only upto 750 Hours a month, when you cross this theshold they will charge you. You can check all the rules related this on aws portal.

Read more at HowtoForge

Linus Torvalds on SHA-1 and Git: ‘The Sky Isn’t Falling’

Yes, SHA-1 has been cracked, but that doesn’t mean your code in Git repositories is in any real danger of being hacked.

The real worry about Google showing SHA-1 encryption is crackable, as pointed out by Peter Gutmann, a cryptography expert at the at the University of Auckland, New Zealand, is “with long-term document signing and certificates“. But, what about the distributed version control system Git code repositories? Linus Torvalds, Linux and Git’s inventor, doesn’t see any real security headaches ahead for you.

Read more at ZDNet

EFF: Half of Web Traffic is Now Encrypted

Half of the web’s traffic is now encrypted, according to a new report from the EFF released this week. The rights organization noted the milestone was attributable to a number of efforts, including recent moves from major tech companies to implement HTTPS on their own properties. Over the years, these efforts have included pushes from Facebook and Twitter, back in 2013 and 2012, respectively, as well as those from other sizable sites like Google, WikipediaBing, Reddit and more.

Many major news organizations have also moved forward (including us!), while efforts like the Let’s Encrypt project have helped pushed others, including WordPress, to take advantage of the technology.

Read more at TechCrunch

Tying Together the Many Open Source Projects in Networking

The Open Platform for Network Functions Virtualization (OPNFV) is driven more by iterative code releases than by heavyweight up-front standardization efforts.

There are a lot of pieces to the ongoing network transformation going up and down the stack. There’s the shift away from proprietary hardware. There’s the to need to manage complex network configurations. Add subscriber management and a wide range of other necessary functions. Add customer-facing services. All of those pieces need to fit together, integrate with each other, and interoperate.

This was the topic of my conversation with Heather Kirksey, who heads up the Open Platform for Network Functions Virtualization (OPNFV) project when we caught up at the Open Source Leadership Summit in mid-February. 

Read more at OpenSource.com

Container-Friendly Alpine Linux May Get Java Port

Alpine Linux, a security-focused lightweight distribution of the platform, may get its own Java port. Alpine is popular with the Docker container developers, so a Java port could pave the way to making Java containers very small.

A proposal floated this week on an OpenJDK mailing list calls for porting the JDK (Java Development Kit), including the Java Runtime Environment, Java compiler and APIs, to both the distribution and the musl C standard library, which is supported by Alpine Linux. 

Read more at InfoWorld

30 Examples For Awk Command In Text Processing

On the previous post we’ve talked about sed Linux command and we’ve seen many examples of using it in text processing and how it is good in this, nobody can deny that sed is very handy tool but it has some limitations, sometimes you need a more advanced tool for manipulating data, one that provides a more programming-like environment giving you more control to modify data in a file more robust. This is where awk command comes in.

The awk command or GNU awk specifically because there are many extensions for awk out there takes stream editing one step further than the sed editor by providing a programming language instead of just editor commands. Within the awk programming language, you can do the following

  • Define variables to store data.
  • Use arithmetic and string operators to operate on data.
  • Use structured programming concepts and control flow, such as if-then statements and loops, to add logic to your text processing.
  • Generate formatted reports

Actually generating formatted reports comes very handy when working with log files contain hundreds or maybe millions of lines and output a readable report that you can benefit from.

our main points are:

command options

Reading the program script from the command line

Using data field variables

Using multiple commands

Reading the program from a file

Running scripts before processing data

Running scripts after processing data

Built-in variables

Data variables

User defined variables

Structured Commands

Formatted Printing

Built-In Functions

User Defined Functions

https://likegeeks.com/awk-command/

Hope you like it

Thank you

 

“I Am A Mainframer” Interview Series: IBM

In our second conversation of our “I Am A Mainframer” interview series, Jeffrey Frey talks with Emily K. HugenbruchOpenStack Cloud Enablement Engineer, z/VM and Software Engineer at IBM about the OpenStack Newton release and her overall career experience as a woman working in the mainframe space. 

 The conversation is sponsored by the Open Mainframe Project. As a Linux Foundation Project, the Open Mainframe Project is intended to help create a mainframe focus, open-source technical community and to serve as a focal point for the development and use for enterprise Linux and a Mainframe computing environment.

 The goal of the project is to excite the Linux community around the use of the mainframe and to foster collaboration across mainframe community and develop and exploit shared Linux tool sets, resources, and services within the mainframe environment. In addition, the project seeks to involve the participation of academic institutions to help assist in creating educational programs aimed at developing the mainframe Linux engineers and developers of tomorrow. …

Jeffrey: Emily what do you think the biggest challenges are for the mainframe going forward. We’ve talked a lot about, you know, what we’re doing here to enable the platform. What do you see as the challenges in front of you?

Emily: I think one of our biggest challenges is really talking about what cloud means, and especially now that we’re getting into container technologies, how a lot of times those container technologies and how they interact with projects like OpenStack are still not very well defined yet. So when you add the in the extra layer of Z systems then that’s an extra challenge of how should these things interact? What do we need to do to make sure that our customers are happy with them, that they like how these things fit together and that it’s easy to put together.

There are a lot of things that you can do if you play around and really hack it but when we’re talking about the mainframe, our customers want something that’s very reliable, very easy, straightforward to put together and very well thought out and backed up by IBM so yeah, there’s a tremendous amount of work to be done with defining that interaction.

Read more at Open Mainframe Project

Takeaways from the Open Source Leadership Summit: Mainstream Open Source, Security, Policy, and Business Models

By Melissa Smolensky

The 2017 Open Source Leadership Summit, put on by the Linux Foundation, brought together leaders from the open source community in Lake Tahoe last week to discuss timely open source topics. The topics that came up most throughout the conference included: open source becoming mainstream, future open source business models, security in a time where everything is connected, and a call to action to be active in technology policy.

Open source is becoming a larger focus for major companies, from Toyota to Disney to Walmart. While open source vendors continue to look to the Red Hat model as one of the most successful open source business models to date, entrepreneurs believe there are new models that can surpass this success. As the world becomes ever more connected to the internet, there are general concerns about security, and a call to take action in policymaking. Read on below to learn more about the conversations at the Open Source Leadership Summit.

Open source is mainstream

The number of companies involved in open source projects is growing, and the community includes familiar company names from auto companies, to banking, to healthcare. Open source is not only being adopted by companies of every industry; these companies are also contributing to the projects themselves.

In his opening keynote, Jim Zemlin, executive director of the Linux Foundation, stated that 99.4% of the world’s high performance computing systems run Linux, 64.8% of mobile devices run Linux, and 90% of the stock exchange runs on Linux.

Jim Zemlin giving his keynote at the Open Source Leadership Summit 2017

Jim Zemlin giving his keynote at the Open Source Leadership Summit 2017.

Companies such as Toyota, Daimler (DaimlerChrysler), American Express and J.P. Morgan are just some of the companies actively involved with open source standards, including with the Linux Foundation’s work with Blockchain (for the financial industry) and Automotive Grade Linux. Walmart, Capital One and Disney each spoke about their internal open source programs to not only use open source internally, but to contribute to open source as well.

As enterprises adopt open source technologies, many are looking to work alongside a vendor for support. In his keynote, Al Gillen, Vice President, Software Development and Open Source at IDC, shared research about how companies decide to adopt open source software. His report showed that 45% of enterprise companies ranked working with a commercial vendor as a top priority when adopting open source.

Al Gillen presents at the Open Source Leadership Summit 2017.

Al Gillen presents at the Open Source Leadership Summit 2017.

Security is internet security

Now that our physical space is connected to the internet through the Internet of Things movement, overall security is internet security. Bruce Schneier gave a keynote talking about how those working on the internet are building one large robot that affects the virtual world as well as the physical world.

Schneier cited a Gartner estimate that 5.5 million new end-user devices connect to the internet every day. While devices such as iPhones and Android phones are automatically patched with software and security updates, there are many more devices released each month that do not have security built-in automatically. This is a big problem in a time where hackers are using Internet of Things devices to create botnets to attack and bring down the internet.

CoreOS is a company founded with the mission to secure the internet and that provides software and security patches through self-driving infrastructure. Bruce’s discussion about the growing security challenges of the always-connected age resonates with our mission. CoreOS is a key part of the future to secure the backend of the internet, but like Bruce brought to light, there is more work to be done on the Internet of Things side as well.

Government Policy for the Internet Age

Bruce also begins a call to action for the open source community to take part in crafting policy. The government will write and enforce policy for technology companies on security and privacy, whether we participate or not. He posed the question about how open source will continue to thrive in a time of increasing government regulation, which is why the open source community must be actively involved in conversations about policy. He asks the open source community to take a seat at the table and have a voice in government policy making, rather than being handed policy from the government and reacting after the decisions have been made.

Additionally, William Hurley (also known as Whurley, discussed how the open source community is ideally situated to be involved in civic-minded activities. From bio-hacking to architecture to education to government – the open source community has the capabilities to help our government have the right responses to technology innovation. He left the stage asking the community to get involved so we can help shape the way the world interacts with technology.

The evolving open source business model

In breakout talks, Craig McLuckieSarah Novotony and Stephen Walli discussed the future business model for open source companies. No one had the definitive answer to the most successful open source business model of the future – while the open core model with support and services is well received, many think the open source model is ready for disruption. We’re seeing innovative approaches to open source market and we’re looking forward to seeing how they turn out.

Stephen Walli’s presentation underlined the need for vendors to focus on solving customer problems. Stephen’s advice is: those that focus on the customer will have the most successful open source model in the end.

What’s next?

We enjoyed the conversation with the thought leaders at the Open Source Leadership Summit and want to continue these conversations on how we can work together to broaden the open source community, explore new open source business models, strengthen security in an increasingly interconnected world, and become more active participants in creating technology policy.

Continue the conversation at CoreOS Fest on building, running, and securing your infrastructure, May 31-June 1.

This article originally appeared on CoreOS (republished with permission).

Persistent Memory Usage within Linux Environment by Maciej Maciejewski & Krzysztof Czurylo, Intel

Intel engineer Maciej Maciejewski examines the primary differences between persistent memory, storage devices, and regular DRAM.

This Week in Open Source News: Diversity Talk at OSLS Reveals Minority Challenges in Tech, ONAP Project Announced & More

This week in open source and Linux news, a talk on diversity in tech sparked a pithy article for The New Stack via Darryl Taft, The Linux Foundation consolidates two projects to form ONAP, and more. Keep reading for a curated look at the top OSS headlines of this past week. 

1) “Diversity in Open Source” talk at Open Source Leadership Summit tackled the challenges women and minorities still face in the tech industry. Darryl Taft comments. 

Amidst Bias, Women Work to Find a Place in Open Source Communities– The New Stack

2) The Linux Foundation seeks to consolidate two of its open source orchestration and management efforts.

Linux Foundation Creates New Platform for Network Automation– WSJ

3) “Google fuzzer helps find 11-year-old memory-corruption flaw in the Linux kernel.” Linux’s Decade-Old Flaw: Major Distros Move to Patch Serious Kernel Bug– ZDNet

4) “Xen Project helps to advance the state of MirageOS unikernel operating system with a new release that now supports the KVM hypervisor.”

MirageOS Unikernel Effort Moves Forward– eWeek

5) Valve releases SteamVR for Linux, letting developers “create Linux content for the HTC Vive VR headset, trackers and other hardware.”

Valve Launches SteamVR Support for Linux– Engadget