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  Difference between localhost and 127.0.0.1

Lots of people would think what the address 127.0.0.1 is when first seeing this address. In fact, 127.0.0.1 is a loopback address which refers to the local machine. It is generally used for local testing. When typing ping 127.0.0.1 on local command console, it will send network packets to local IP/TCP layer to test whether IP/TCP works properly or not.  To those who are used to use localhost, it is actually mapped to 127.0.0.1 by default. There are hosts files in the system which store this...

   LINUX,NETWORK,LOCALHOST,127.0.0.1,LOCALHOST VS 127.0.0.1     2018-09-29 22:11:12

  About HTML semantics and front-end architecture

A collection of thoughts, experiences, ideas that I like, and ideas that I have been experimenting with over the last year. It covers HTML semantics, components and approaches to front-end architecture, class naming patterns, and HTTP compression. We shall not cease from exploration And the end of all our exploring Will be to arrive where we started And know the place for the first time. T.S. Eliot — “Little Gidding” About semantics Semantics is the study of the relationshi...

   HTML,SemanticsCSS,OO CSS     2012-03-16 08:42:55

  Chrome 23 supports Do Not Track now

Google has upgraded its browser to Chrome 23, released for Windows, Mac, Linux and Chrome framework. New features brought by Chrome 23 include GPU video decode acceleration, more convenient site permissions management and start supporting DNT agreement. The most important feature of this version upgrade is the support for "Do Not Track (DNT)". As one of the solutions to address online privacy issues, DNT protocol allows Internet users to control how their privacy information can be tracked, als...

   Chrome 23, Do Not Track,DNT     2012-11-07 11:27:26

  Mark Zuckerbeg's hacker way

According to TechCrunch, Facebook CEO Mark Zuckerberg wrote codes for the latest mobile IM application : Poke, the tone played when receiving push notifications is from the mouth of Zuckerberg. This approach reflects the way pursued by Zuckerberg : hacker way.As one of the earliest features of Facebook the "Poking" is invented by Zuckerberg, it is not surprising that Zuckerberg involves in Poke's development.Zuckerberg recorded his own voice on the phone initially just for fun. But he was later ...

   Poke,Facebook,Snapchat, Mark Zuckerberg     2012-12-24 12:01:52

  Method chaining and lazy evaluation in Ruby

Method chaining has been all the rage lately and every database wrapper or aything else that’s uses queries seems to be doing it. But, how does it work? To figure that out, we’ll write a library that can chain method calls to build up a MongoDB query in this article. Let’s get started! Oh, and don’t worry if you haven’t used MongoDB before, I’m just using it as an example to query on. If you’re using this guide to build a querying library...

   Ruby,Method chaining,Lazy evaluation,Implementation     2011-11-29 08:51:17

  Beginners guide to Linux directory structure

Have you ever looked in your / directory, you’ll see a lot of directories. Here we are presenting beginners guide to linux directory structure explaining what they mean and what are the contents of these directories.Screenshot of contents of root directory: /This is called root partition. All files and directories start with root partition. Write privileges under this directory are avaible with root user only. Not to confuse it with root user’s home directory, know the ...

   Linux,File system structure,Beginner's guide     2012-04-20 12:19:32

  Top Ten Tips for Correct C++ Coding

Brian Overland, long-time Microsoft veteran and author of C++ Without Fear: A Beginner's Guide That Makes You Feel Smart, 2nd Edition, shares 10 of his most hard-earned, time-saving insights from decades of writing and debugging C++ code.My first introduction to the C family of languages was decades ago (yes, I know this dates me horribly). Later I learned C++. I wish someone back then had steered me around the most obvious potholes; it might have saved me hundreds of frustrating hours.I ca...

   C++,Tips,Top,Ten,Magic number,Integer di     2011-09-03 10:58:35

  Display GIF animation while submitting the web form

Internet appears everywhere in our life. Form as a data gathering component is the must have component in a web app. When the page is submitting data to the server, if it takes a relative long time for the backend server to process the data, then the client users will feel lost while waiting for this if he cannot get any indication about what's happening. They may even reclick the button which will cause the data resubmission. This affects the user experience and also the system performance and ...

   HTML,Spin,Submit,Form     2013-05-17 11:47:07

  Top 3 Cybersecurity Trends to Watch Out for Today

One trend in cybersecurity that never changes is that it’s getting more important with every passing year. According to statistics, the number of cyberattacks and severity of the losses they incur are growing at an alarming rate. Every day about 24,000 of malicious mobile apps get blocked yet more pop up overnight. For a business today cybersecurity isn’t an option, it’s a necessary measure one needs to invest in heavily. And it’s essential to follow the trends and develo...

   SECURITY,CYBER SECURITY     2019-05-14 09:03:24

  Kubernetes Authentication & Authorization 101

If we want to build a system with user modules, Authentication and Authorization are something that we can never ignore, though they could be fuzzy to understand. Authentication (from Greek: αὐθεντικÏŒς authentikos, “real, genuine”, from αὐθέντης authentes, “author”) is the act of proving an assertion, such as the identity of a computer s...

   RBAC,AUTHORIZATION,AUTHENTICATION,KUBERNETES     2021-06-05 23:19:18