Unix Practice

"SCO has become increasingly aggressive in speech and refuses to show any evidence of the lawsuit, and everything seems to indicate that SCO is simply talking and speaking in the tiger's skin." But Microsoft will never give up such a good opportunity to use these raving words. "In 2003," to Linux to launch a "fear War"?　　Bruce Perens, author of Brousse Perence, evaluates SCO. In March 2003, SCO, the owner of a self-proclaimed UNIX operating system, filed a lawsuit against IBM for $1 billion in compensation.

This article is a brief introduction to Hadoop-related technical biosphere, while sharing a previously written practice tutorial that requires a person to take. Today, with cloud computing and big data, Hadoop and its related technologies play a very important role and are a technology platform that cannot be neglected in this era. 　　In fact, Hadoop is becoming a new generation of data processing platforms due to its open source, low-cost and unprecedented scalability. Hadoop is a set of distributed data processing framework based on Java language, from its historical development angle we can ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall in understanding the Internet entrepreneurship Theory knowledge, began the field to carry out the actual operation of the website business. 　　In this chapter, we will explain in detail how to build a Web site that conforms to the user experience. First, the site of the page planning and style design of the previous Web site construction model, are through the learning of Web page production, a page of the production of HTML files, combined to create a static Web site. And now is often the use of special construction station procedures, after a simple installation, only need to add content on it ...

This paper introduces how to build a network database application method by MySQL of the golden combination of Web database, PHP is a server-side embedded hypertext Processing language similar to Microsoft ASP, it is a powerful tool to build dynamic website. While MySQL is a lightweight SQL database server that runs on a variety of platforms, including Windows NT and Linux, and has a GPL version, MySQL is considered the best product for building a database-driven dynamic Web site. PHP, MySQL, and Apache are Linux ...

Red Hat new Virtual storage devices note a tricky problem for it stores: Amazon's public cloud uses old but still-running applications. When a company loads its workloads into Amazon Web Services (AWS), it is usually a new application-the legacy application will have no impact on the cloud and many companies. The Amazon Network Service (AWS) Red Hat Virtual storage device-based on gluster technology-adds the POSIX standard. This means that it can take a traditional UNIX application. (POSIX is the application and Operations department that governs how to interact ...

The story about Linux is actually a battle between the two ends. In the cloud, the operating system has become a top player. While in the enterprise, Linux is eroded the exclusive territories of Unix systems, but if you want to talk about the operating system, still Microsoft's Windows in the enterprise dominate. With the popularity of cloud computing, Linux may (but not be guaranteed) gain more and more acceptance in the enterprise. Linux was born in 1991, a small but growing share of the business. The operating system has never let big companies think it is better than Microsoft Wi ...

In some ways, securing your computer is a full-time job. The problem is even more complicated when you think about wireless security. For those traveling outside the wireless network, whether they use a wireless access point in a café, an airport, or a hotel where they spend the night, one important concern is that they never know the security of the network they use unless they know it is not. For example, for a network of coffee shops, this is true: because they are open to everyone, you can't finish ...

This paper is an excerpt from the book "The Authoritative Guide to Hadoop", published by Tsinghua University Press, which is the author of Tom White, the School of Data Science and engineering, East China Normal University. This book begins with the origins of Hadoop, and integrates theory and practice to introduce Hadoop as an ideal tool for high-performance processing of massive datasets. The book consists of 16 chapters, 3 appendices, covering topics including: Haddoop;mapreduce;hadoop Distributed file system; Hadoop I/O, MapReduce application Open ...

In the past, we have introduced some principles of software development, such as the 10 commandments of high quality code and the UNIX design principles described in the UNIX legend (next article). I believe that you can learn from middle school some knowledge of design principles, as I said in the "How Do I Recruit procedures", a good programmer usually consists of its operational skills, knowledge level, experience level and ability four aspects. Here I would like to talk about some of the principles of design, I think these things belong to the long-term experience summed up knowledge. These principles should be understood by every programmer. But...

According to IDC's estimate, from the operating cost control point of view, in the IT industry, the cost of energy consumption has reached its hardware procurement costs of 25%. The data is rising at a compound annual rate of 52%. 　　When enterprises and large and medium-sized organizations face the changing business pressure and the data of exponential growth, it is necessary to consider and pay attention to the characteristics of environmental protection and energy saving in the data center. At the same time, the Enterprise data center areas of various products have been affixed to the "green energy-saving" label, a variety of "green energy-saving" as the main selling point of the new technology is also emerging ...