Ruby Setup

"Editor's note" Shopify is a provider of online shop solutions company, the number of shops currently serving more than 100,000 (Tesla is also its users). The main frame of the website is Ruby on rails,1700 kernel and 6TB RAM, which can respond to 8,000 user requests per second. In order to expand and manage the business more easily, Shopify began to use Docker and CoreOS technology, Shopify software engineer Graeme Johnson will write a series of articles to share their experience, this article is the department ...

The idea of using the Internet to provide IT capabilities as a service is relatively new, but recently people have reached a climax in their attention. Infoq has also published several articles, such as "Introduction to Virtualization" and an article on virtualization security, but there is still a lack of comparisons between different cloud providers. This article compares three cloud computing providers, which provide a server-centric solution, starting with a description of how to start three cloud computing services and then comparing the performance, price, and availability of services to three service providers. ...

In our daily life, we are inseparable from the application of position recognition class. Apps like Foursquare and Facebook help us share our current location (or the sights we're visiting) with our family and friends. Apps like Google Local help us find out what services or businesses we need around our current location. So, if we need to find a café that's closest to us, we can get a quick suggestion via Google Local and start right away. This not only greatly facilitates the daily life, ...

"Editor's note" Vidar Hokstad is very experienced in Docker use, especially in the absence of data loss, the use of Docker to create a repeatable build on the experience, in this blog, he summed up the development of the Docker container 8 modes. Docker is now my favorite tool, and in this article I will outline some of the patterns that recur during my use of Docker. I do not expect them to bring you many surprises, but I hope that these can be useful to you, I am very willing to communicate with you in the use of ...

From the Eucalyptus system website to see a news, learned that eucalyptus and rpath cooperation. And Rpath is a company that provides system software package installation. The author contacted a lot of software systems are through the rpath way of packaging. Rpath can make the Linux operating system and related software together into one installation package. Installation packages can be based on a virtual machine (such as vmware/esx) or a bare-metal installation package. Basically the user simply needs to confirm, can ...

If you want to create a private cloud, you need to use management software to create a virtual pool of computing resources, provide access to end users, and deal with security, resource allocation, tracking and billing issues. We tested five mainstream private cloud management products: Novell's Cloud Manager,eucalyptus Enterprise Edition, Opennebula,citrix Lab Manager and cloud.com cloudstack ...

Hadoop MapReduce is a programming model for data processing that is simple but powerful enough to be designed for parallel processing of big data.

The road to computer science is littered with things that will become "the next big thing". Although many niche languages do find some place in scripts or specific applications, C (and its derivatives) and Java languages are hard to replace. But Red Hat's Ceylon seems to be an interesting combination of some language features, using the well-known C-style syntax, but it also provides object-oriented and some useful functional support in addition to simplicity. Take a look at Ceylon and see this future VM ...

Highlight.js can highlight various program source code syntax coloring on a page. Supported languages include: Python, http://www.aliyun.com/zixun/aggregation/13430.html ">ruby, Perl, PHP, XML, HTML, CSS, Django, Javascript, VBScript, Delphi, Java, C + +, RenderMan (RSL, and ...)

Data for the corporate network dark attack and defense war. Data caching, also known as data extrusion, refers to the transfer of data from a computer without authorization. For the corporate network, these types of attacks can be done manually, such as using a USB drive; in addition, this attack can also be automated, when the need to use the network to transfer data. In this article, we will highlight the web-based data caching techniques used during penetration testing, along with the corresponding security hardening measures. As tunneling technology, we assume that we do not have valid domain credentials. This means that I ...