SEARCH KEYWORD -- Network interface


  Deep Understanding of ReentrantLock: Unlocking the Mysteries of Java Concurrent Programming

ReentrantLock introduction ReentrantLock is a class in the Java concurrent package, java.util.concurrent.locks, and is an implementation of the Lock interface. As its name suggests, it is a reentrant mutual exclusion lock. A mutual exclusion lock is a synchronization tool used to protect shared resources, ensuring that only one thread can access the resource at a given time. Reentrant means that a thread can acquire the same lock multiple times without causing a deadlock. This lock provides some...

   JAVA,REENTRANTLOCK,CONCURRENCY,MULTITHREADING     2023-05-22 08:01:13

  Python PLC Honeypot Project

Program Design Propose : This project aims to develop a sophisticated honeypot system that emulates an OT (Operational Technology) SCADA network environment, bridging Level 1 OT field controller devices (PLCs) with Level 2 control programs, including Human-Machine Interfaces (HMIs). This honeypot will simulate various PLC models from major vendors, such as Schneider and Siemens, while supporting the primary communication protocols Modbus-TCP and Siemens-S7Comm. The system will integrate essenti...

       2024-11-25 03:56:49

  Programmer professionalism

Programmer is a lifetime occupation. But first, as a programmer you need to love programming, rather than just an occupation to achieve other goals in life.Now if you plan to spend decades of life on programming, then you should continue to think about what is more efficient. In other words, how are you different from who you were a decade ago and how will you be better than who you are now a decade later?In my opinion, a programmer, regardless of his work, should improve himself in three aspect...

   Programmer, Idea     2012-12-10 12:05:24

  Do American teenagers hate Facebook?

PewInternet released latest survey report about Internet and life. The report shows that Facebook is still the favorite social network of American teenagers, but it's also the most criticized one. Although some people enjoyed staying on Facebook, most people are complaining that there are more and more adult contents and negative social interactions on Facebook. The key findings are: Teens are sharing more information about themselves on social media sites than they did in the past. Teen Twitte...

   American teenage,Facebook,Survey     2013-05-26 10:37:40

  WeChat owns 70 million users now out of China

According to 36 Kr, on this year's Tencent Partner Conference, Tencent president Zhiping Liu announced that WeChat had more than 70 million users out of China, it entered Malaysia, Thailand, India, Indonesia, the Middle East, Mexico and other countries. And it has become the No.1 IM app in Mexico .While in early April, WeChat had only 40 million users abroad. In just three months, 30 million news users started to use WeChat.Tencent spares no effort to promote WeChat to the international market. ...

   WeChat,Internationalization,China,Tencent     2013-07-03 03:09:34

  Coming back, Nokia?

Nokia officially unveiled an Windows Phone 8 phone model Lumia 920T in cooperation with China Mobile in yesterday's Global Developer Conference of China Mobile. This is the first to support China Mobile's TD-SCDMA 3G mobile phone network standard in the Windows Phone ecosystem, it that Windows Phone is available in TD camp. Meanwhile, as China Mobile's official custom models, Lumia 920T will be sold using China Mobile's sales channel, this may further promote the sales of Nokia Windows Phone dev...

   Nokia, China Mobile, Lumia 920T,TD-SCDMA     2012-12-06 13:17:24

  Implement struct no copy in GoLang

There is some case where some of the struct in GoLang which is not meant to be copied. For example, sometimes a global configuration which should have only one version passed around the whole application and should not be copied and modified. In GoLang, there is no intuitive solution on preventing copying of struct. But there is still some way which can be leveraged to help prevent this while developing the code. The trick is to define some struct implementing sync.Locker interface and has this ...

   GO VET,NOCOPY,NO COPY     2020-09-04 22:24:58

  The basics of Client/Server socket programming

  While Client/Server communication model is ubiquitous nowadays, most of them involve socket programming knowledge. In this post, I will introduce some rudimentary aspects of it: (1) Short/Long-lived TCP connection.Short-lived TCP connection refers to following pattern: Client creates a connection to server; send message, then close the connection. If Client wants to transmit information again, repeat the above steps. Because establishing and destroying TCP s...

       2017-09-26 19:43:10

  Boeing is developing Android phone?

Boeing is also involved in to the mobile Internet? It is said to be true. Recently, the Journal of the American national defense disclosure, Boeing is developing a super-safe Android phone.The magazine said Boeing President Roger Krone said this is Boeing's first foray into research and development of communication devices using the cellular network. Security infrastructure sector vice president Brian Palma said the mobile phone code-named "the Boeing Phone" has entered the final stage , is exp...

   Boeing,Android,Safety mobile phone     2012-04-15 01:45:14

  Are NSA engineers better than engieers at Microsoft?

NSA is the US government department which takes care of the information and data security of US. It's said to be one of the largest of U.S. intelligence organizations in terms of personnel and budget. There are many excellent engineers working on information and data security and developing algorithms and software help US government to collect intelligence information from all around the world. Many people may be curious about whether NSA has better engineers than IT companies like Microsoft and...

   NSA,Microsoft     2014-01-09 07:24:43

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