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  Linux Clock : CST,UTC and NTP setup

1. There is an option when you set up clock on installing Linux: system clock users UTC, so what does UTC mean? It's Universal Time Coordinated(UTC), there are two different times in GPS system: one is UTC , the other one is LT(Local Time). The difference between these two is just the timezone difference, UTC is the time in timezone 0. If the local time in Beijing is 8 o'clock in the morning, then UTC time is 0 o'clock, which is a 8 hour difference. 2. In Linux, when we use date to check the tim...

   Linux,Clock,UTC     2013-03-21 12:19:30

  Install multiple versions of Go

As a developer, there might be need in some cases to have multiple versions of Go installed. One may test out some new features of the latest version of Go but also wanna maintain a stable version of Go for daily development purpose. How to maintain multiple versions of Go? The GoLang official website has provided a way to maintain multiple versions of Go by using go get to install the different versions of Go. Below are steps: Download a normal version of Go and install it Go to the Go release...

   MULTIPLE VERSION,GO BINARY,GO VERSION     2021-05-16 02:01:46

  Undoing Changes in Git: Working Directory, Staging Area, and Committed Changes

When working with Git, it's crucial to understand how to undo changes at different stages—whether in the working directory, the staging area, or after committing changes to the local repository. This guide walks you through the essential Git commands to effectively manage and revert changes, ensuring that your version control process is smooth and error-free. Modifying Files in the Working Directory but Not Yet Added to the Staging Area When you make changes to files in your working direct...

   GIT RESET,STAGING AREA,UNDO CHANGE     2024-08-11 08:53:34

  The Web: Important Events in its History

Straight forward simple fact of the functioning evening: The netting is normally not the same element as appearing the world vast world wide web. Brain damaged, correct? Related to the Included Press Stylebook, the “Net is normally a decentralized, world-wide web 2 . 0 of pcs that may talk with every solo diverse. The Environment Huge World wide web, like announcements, is usually normally a subset of the World wide web.” If the web is not really the internet, then what is it? The c...

       2019-06-03 00:06:00

  How to prevent next HeartBleed bug?

How to ensure the security of open source projects is a concern for many open source users including individual users and companies. But it's not an easy task to ensure the security of open source projects. Because everyone can see the source code, there is much higher possibility that a bug may be found by someone. Once a bug is disclosed, people may exploit it and do evil things, this may cause loss of money either for individuals or companies, some of the bugs may even have big impact to the...

   Open source,HeartBleed,Security     2014-04-24 09:07:05

  The Greatest Hacks of All Time

Reader's advisory: Wired News has been unable to confirm some sources for a number of stories written by this author. If you have any information about sources cited in this article, please send an e-mail to sourceinfo[AT]wired.com. In 1972, John T. Draper discovered he could make free long-distance phone calls using a whistle from a Cap'n Crunch cereal box. The whistle emitted a 2,600-hertz tone that got him into the internal authorization system at the phone company. With another noi...

   Hack,Greatest,All time     2012-02-29 05:05:42

  ICO Checklist: How to Launch a Successful Initial Coin Offering

Amongst the many important things that took place in Blockchain industry in 2017, Initial Coin Offerings (ICO) may be considered as the most important of all. ICO helps business/idea owners to pre-sell access to their services or products and in a way to fund the development of those services or products. To help founders/ startups define an effective launch process and provide perspective on everything that they will need on their ICO journey, we have jotted down few points which will serve as...

   INITIAL COIN OFFERING,ICO CHECKLIST,INITIAL COIN OFFERINGS (ICO)     2018-05-28 07:32:53

  The Pitfall of WebSocket Disconnections Caused by Browser Power-Saving Mechanisms

Preface Recently, while using WebSocket (WS) connections, we encountered frequent disconnection issues, occurring hundreds of times per day for a single user. Although using the auto-reconnect feature of socket.io allowed us to quickly restore connections after disconnections, it did not guarantee that every reconnection would successfully receive WS messages. Therefore, we conducted several investigations and tests. Ultimately, we identified the root cause of the issue: the browser's power-savi...

   WEBSOCKET,JAVASCRIPT,POWER SAVING,TROUBLESHOOTING     2024-06-23 01:19:39

  HeartBleed: Should C be blamed for the HeartBleed bug?

There is a discussion about the security of applications written in C on Hacker News recently after the report of HeartBleed bug in OpenSSL. In this discussion, some people are saying that the applications written in C are unsafe. It seems all or most of the faults should be laid on C. I think this is biased. The language itself should not be blamed.Safety is a relative term for programming languages. No language is absolutely safe. We claim some languages like Java and C# are safer than C/C++ b...

   C,HeartBleed,Analysis,Code review     2014-04-14 03:52:55

  5 tips for developing HTML5 mobile games

Previously at Creat Studios, Vivendi Games Mobile and JAMDAT, amongst others, Scott brings eighteen years of industry experience to MocoSpace. He heads the company's internal game studio.We've all witnessed the growth of mobile and social gaming over the past two years: the two genres have continued to evolve independently, while also coming together and embracing the power of HTML5.Mobile browser-based social games have found an audience and are thriving.This new gaming category draws from the ...

   HTML5,Mobile,Game design,Tips,Mobile dev     2011-09-05 08:15:09

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