SEARCH KEYWORD -- BLOCK ACCESS


  Proximity Cards Do More Than Just Open Doors

Credit: Susanne Plank via Pexels Locksmiths from centuries ago couldn’t have possibly imagined opening a door by tapping a card roughly the size of a credit card. Back then, security depended on physical locks, not sealed antennas made from coiled wire, integrated circuits, and capacitors. Today, proximity cards are a popular form of keycard used in hotels, government buildings, healthcare facilities, and many more places. They open doors for people with authorized access, but they also d...

   LOCK,PRINTING     2024-04-11 22:04:07

  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

  A tour to Tumblr's office

This week Yahoo has made a deal with Tumblr that Yahoo would acquire Tumblr with $1.1 billion. The reason why Yahoo wants to acquire Tumblr is still not so clear. It may be because they don't want to miss the chance again after they missed the chance to acquire Facebook. But anyway, let's take a tour to the office environment of Tumblr. The big logo after entering the door. The office building in Tumblr has two floors. Most people are working on the first floor. Cute decorations Technical t...

   Tumblr,Office,Tour     2013-05-22 12:25:32

  Get Facebook, Twitter and YouTube back

Facebook, Twitter and YouTube have become part of many people's daily network life. People hang around these sites to network with known and unknown friends, to know about the latest news and to relax with fancy video clips. But what will you feel if all of a sudden you cannot access them? Want to experience this? Go behind the GFW(Great Firewall) of China. Just a joke, but it's real. Huh, you are out of China? Don't worry. Change your DNS server to those located in China. I just experienced it,...

   DNS spoofing, GFW, YouTube, 37.61.54.158     2014-12-20 21:41:34

  What do people think about IE?

Browser war among major browsers is continuing for a long time since last century. Just a few years ago, Internet Explorer was the most used web browser. But now the situation is completely different, people are making fun of Internet Explorer and switching to other browsers. Today we share some jokes about Internet Explorer, it's just for fun, so grab a cup of coffee and sit down and enjoy. Hmm, is IE so slow? What gun is it? Hmm, I am still one step behind And I am lost. Hey, what is HTML...

   IE,Joke,Chrome     2013-07-31 08:25:24

  Access control in Java -- Permission check order

Previously we showed you how to turn on SecurityManager in Java. After SecurityManager is turned on, a series of permission checks will be applied on the code you are calling in your application to protect some resources against malicious access such as files, sockets etc. To perform these permission checks, a set of Permissions will be created and checked using the AccessController. The AccessController has three purposes : To decide whether an access to a critical system resource is to be all...

   JAVA,SECURITY,ACCESSCONTROLLER     2016-03-07 04:17:40

  If we use programming language names as building names

Today I came across some interesting building names while wandering around technology park of Singapore. Most of these names are biotech related. They are Chromos,  Centros, Matrix, Genome, Proteos, Nanos, Helios, Neuros, Immunos, Synapse and Amnios. Chromos Centros Matrix Genome Proteos Nanos Helios Neuros Immunos Synapse Amnios I am wondering whether there are building which are named with programming language names. Do you see anyone of them anywhere?...

   Buidling name,Programming language     2013-08-16 06:02:26

  Accounting Software: What Is it And Why Do We Need It?

As a business owner, you need to do everything that you can to ensure that your business operates as efficiently as possible and that you can provide the best possible service to your clients. For many business owners, one of the major challenges of running their business is financial management. While managing your accounts might not be the most glamorous aspects of running a business, it is crucial to gain control of your finances for your company to succeed.  With the right small busine...

   ACCOUNTING     2021-03-17 04:11:01

  Early homepages of some famous websites

Are you curious about what are their early homepages like for some famous IT companies? Let's take a look at them now. 1. Google This page was relative concise at that time. The current Google homepage is more concise. 2. Facebook It went online on 4th Feb, 2004. This was its homepage in 2004 3. YouTube It went online on 15th Feb, 2005. Until 22nd April, the first video clip was uploaded. 4. Wikipedia It emphasizes on free content and collaborative editing. It also supports many languages. 5...

   Homepage,website,History,Google,Facebook     2015-07-23 11:34:18

  China has 591 million netizens now

CNNIC(China Internet Network Information Center() released its 32nd research report on Internet usage in China on July 17 Beijing Time. According to the report, China has 591 million netizens until June 2013, among them 464 million are phone Internet users. Chinese netizens surf the Internet 21.7 hours a week. The report shows that China's netizens reached 591 million as of the end of June 2013,  an increase of 26.56 million people compared to the end of 2012. Internet coverage rate is 44...

   CNNICInternet usage     2013-07-18 02:27:52

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