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  Disable directory listings

Preventing directory listings can be very useful if for example, you have a directory containing important '.zip' archive files or to prevent viewing of your image directories. Alternatively it can also be useful to enable directory listings if they are not available on your server, for example if you wish to display directory listings of your important '.zip' files.To prevent directory listings, create a .htaccess file following the main instructions and guidance which includes the following te...

   .htaccess,Disable directory listing,Inde     2011-10-03 14:36:35

  Remove browse button from input type=file

In Web 2.0 era, many websites will ask the user to upload their avatar when creating their profile. In HTML, the input control we should use is input="file". This is a file control provided by the browser vendor and it should be ran in a sandbox for security consideration. Browsers don't provide ways to choose file from local and upload to the remote server without the input="file" control.  There is one annoying part about the input="file", which is a default button named "Choose File" or...

   file,html,browse,remove browse button     2015-07-12 05:17:51

  Writing forward-compatible websites

This is a list of best practices for creating websites that do not break when browsers are updated. It's not always possible to follow all of these, but following as many of them as possible will help future-proof your website. This is especially important for intranet applications and other non-public websites where problems are likely to not be noticed during testing by browser vendors.JavaScriptPrefix all global variable access in onfoo attributes with “window.”When an e...

   Web design,Forward compatible,CSS,JavaScript,window     2011-11-23 08:07:35

  Set up Superset on ubuntu 16.04 LTS

Apache Superset (incubating) is a modern, enterprise-ready business intelligence web application. Compared with business-focused BI tool like Tableau, superset is more technology-navy. It supports more types of visualization and able to work in distributed manner to boost the query performance. Most importantly, it is free of charge! An example dashboard: Let’s go and set it up. Create a virtualenv Assume Anaconda is installed for python management. # create a virtualenv with python 3.6 co...

   TUTORIAL,UBUNTU,SUPERSET     2019-10-19 21:34:55

  New Linux kernel fixes power-saving issues

Greg Kroah-Hartman has released long-term kernel 3.0.20 and stable kernel 3.2.5. Both contain just a single bug fix that allows PCIe power-saving technology ASPM (Active State Power Management) to be used on systems with a BIOS that activates ASPM on some components, but states in the FADT (Fixed ACPI Description Table) consulted by Linux that ASPM is not supported. According to Matthew Garrett, who developed the patch, the change can reduce the power consumption of a Thinkpad X220 by 5&nbs...

   Linux kernel,Power saving,Fix     2012-02-08 10:10:36

  10 super useful PHP snippets you probably haven’t seen

When working with PHP, it is very useful to have a “toolbox” of handy functions and code snippets that can save lots of time when needed. Today, I’m going to show you 10 super useful code snippets that you probably never heard of. Text messaging with PHP using the TextMagic API If for some reason, you need to send text messages to your clients cell phones, you should definitely have a look to TextMagic. They provide an easy API which allow you to send SMS to cell...

   PHP,Code,Snippet,Useful code segment     2012-01-19 11:07:16

  A plugin to update last_error in Delayed Job

delayed_job is a process based asynchronous task processing gem which can be ran at background. It will fork the specified number of processes to execute the tasks asynchronously. The task status is usually stored in the database so that it can be easily integrated into a Rails application where asynchronous job execution is desired. Normally when a job fails to execute or error occurs, it would save the error into the database with the column last_error. Ideally all these will be handled b...

   RUBY,RUBY ON RAILS,DELAYED JOB,LAST_ERROR     2017-11-18 13:05:49

  Behind Start Screen of Windows Phone 8

Last week, Microsoft unveiled Windows Phone 8, in addition to some new features, the biggest difference between WP8 and iOS, Android is that it has a start screen consisting of abundant live tiles. Senior product manager of Microsoft Josh Phillips published an article on Microsoft official blog. He talks about the story behind start screen of Windows Phone 8. "How can we make Start even more personal" is the question Phillips and his team is always thinking about. Windows Phone makes the static ...

   Windows Phone 8,Start Screen,Live Tile     2012-11-03 02:27:22

  Things to Look for in Microsoft .NET Framework 4.7

The .NET Framework 4.7 is the updated version of the .NET Framework 4.6.2.  It can run along with earlier versions of the .NET Framework. On installation it appears as an update for Microsoft Windows under the Installed Updates item in Control Panel. The improvements in the.NET Framework 4.7 includes: High DPI support for Windows Forms applications on Windows 10 Touch support for WPF applications on Windows 10 Enhanced cryptography support Performance improvements .NET Framework Documenta...

   ASP.NET, ASP.NET FRAMEWORK     2017-07-18 05:55:20

  Prototypes and Inheritance in JavaScript

Forget everything you know about object-oriented programming. Instead, I want you to think about race cars. Yes – race cars. Recently I was watching the 24 Hours of Le Mans –a popular racing event in France. The fastest cars in the race are the Le Mans Prototypes. Although these cars are built by car manufacturers like Audi and Peugeot, they are not cars you’ll see on the streets and highways of your home town. They are built exclusively for high-speed endurance ra...

   JavaScript,Prototype,Inheritance     2012-02-27 04:55:22

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