Ping is a type of network packet that is used to check if a
machine that you want to connect to over the internet is available or
not. A ping is a network packet termed an Internet Control Message
Protocol (ICMP) packet. The process of a ping is done when a machine
sends an ICMP echo request packet to another machine or interface over
the internet. If the receiving machine is available and is enabled to
reply back, it will respond with an echo reply packet.
This not only shows us that the receiving machine is alive
and working, it also helps us to identify a number of things such as
total time taken, loss of packets, etc that are used to judge the
reliability of the connection. To run a ping from your Linux machine,
you will need to open a terminal and write a command. The syntax of the
command is “ping destination_ip” – replace “destination_ip” with the actual IP address of the machine you want to connect with.
All recent versions of Windows and Linux come enabled with
the ICMP command. On Windows, the command will send 4 echo requests
before stopping while Linux will continue sending echo requests until a
user stops it themselves.
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Are you aware of Sarahah? If not, then go on your social media
platform and look for the Sarahah. If you go through your timelines,
then you will see the various posts from your friends, where they post
the good and bad messages on their timelines. So, if you are still
wondering from where those posts are coming from, then we will help you
to dig deeper into Sarahah.
Sarahah is the free app which is available on the Android and iOS
platform with over 5 million downloads in just two months of time. This
mobile app is in trend presently, and it is liked by many of the users.
Sarahah, means “frankly” or “expressly” in the Arabic language, the
basic use of this app is to exchange the messages. Now, you might wonder
that there are so many messaging apps, what is so unique about this
app, and then this app allows you to exchange the messages without
letting your identity revealed.
The concept of exchanging your messages to the anonymous users has
become so famous that people think that they can speak their heart out
through this app. You cannot trace the identity of the sender as there
are no traces available of the sender.
The motive of this app is to let yourself know that how much open you
are for the feedbacks and how well you can take it in a constructive
manner. Also, there is no option available to reply to the message,
which makes it difficult to trace the identity of the sender.
\\So, it is the full proof way to let your hearts out, without dealing
with the responses. So, Sarahah allows you to speak anything from your
heart out to the receiver, and your identity will not be revealed. But,
there are other scenarios which world is turning their eye.The app developer says “You can’t respond to messages now. We are studying this option,” So, what if they are planning to add the feature where the identity
of the user is revealed, or the reply option is added which will become
useful for the receiver to trace the identity of the sender.But if you clearly remember the setup, then while registering for
this app it takes your email address. So, now the only evidence is to
link a message back with the email address of the sender. If the app
developer decides to share the user’s identity, then it will become the
chaos among the users, especially for the users who are using this
platform to bully others.
Finally, if the app developers decide that they are going to share
the identity of the user, then they have full right to do so. As, they
have mentioned on their FAQ page, that they have full right to disclose
the identity of the sender. For more queries you can comment us below...
You might be aware of the recent Ransomware attacks, where the
complete data of few nations were on a stake. These attacks have got a
new name “Cyberterrorism”. Nowadays, nothing is safe on the Internet;
the hackers are playing with the entire data of the nation. So, the
hackers have targeted the hospitals, individuals, and corporations.
Now, you know about the present scenario of the Internet data. What
If I tell that there is the solution from decades to avoid these types
of scenarios. If we start using this, then we can get rid of ransomware
attack, DDOS attacks, and nation state cyber attacks.
At present, the Internet governance is sitting in the room and might
be discussing the next generation internet plan. So, if they keep all
your gadgets data online, then potentially the internet regime can
destroy your entire world through online activities.
If your entire data can be operated online, then it will be a huge
cost to the nation if it’s hacked. The internet which is existing right
now was never designed to cope with the billions of users – from an
existing technology named as TCP/IP.
TCP/IP will send your data in packets from point A to point B from
the safe and viable route. If the data is transmitted from the static
path, then there are chances that the data can be destroyed. So, TCP/IP
doesn’t bother about who you are, what you are sending and to whom you
are sending.
In 1970, the TCP/IP method was useful, because you can map the entire
Internet data on the single sheet of the paper. But, in recent world,
the data is huge and cannot be mapped on the paper which is causing this
wreaking havoc. Robert Kahn, co-founder of TCP/IP says that what if you
assign the unique and traceable identifier to each gadget?
Rather, dealing with the packets of data, assign the unique number to
the bits of the transmitted data. This handle system is already in use
by the academic journals where they call this form of a handle a digital
object identifier (DOI). For example, if you assign the unique identifier to the individual
lab results, then the heart doctor will be able to see only test results
which are related to the heart. He will not be able to see the lab
results of other parts of the body. Robert McDowell, a former commissioner for the US Federal
Communications Commission, raised a concern about the unique identifier
process. He says that if the devices and documents are regulated, then
the individual who is handling these patches will become the “super
identifier” which will cause a serious threat to the individual. So, the gatekeeper will only decide, that whom to let into the data
they are trying to trace. And, the gatekeeper can deny the permission to
the government bodies also.
This situation is a cold war between the supporters and people who are
against of TCP/IP, that whether to use the unique identifier patches or
to come up with new technology, which in future help them to avoid such
scenarios.For more queries you can comment us below.
Facebook, the company that accidentally killed fact-based
reality, almost upgraded itself to “accidental species extinction”
during a deep learning experiment. In an exercise known as a generative
adversarial network, which pitted one artificial intelligence (AI)
against another AI, the researchers writing the terms of the contest
forgot one little thing: “there was no reward to sticking to English
language.”
As a result, the AIs innovated a more efficient method of
communication for their purposes. As you can see in the “conversation”
below, this language is relatively incomprehensible to humans.
“This isn’t so different from
the way communities of humans create shorthands,” said Dhruv Batra, a
visiting research scientist from Georgia Tech at Facebook AI Research
(FAIR). The one crucial difference here is processing power. “It’s
perfectly possible for a special token to mean a very complicated
thought,” Batra said. “The reason why humans have this idea of
decomposition, breaking ideas into simpler concepts, it’s because we
have a limit to cognition.”
Luckily, Facebook shut the robot revolution down before it could begin.
However, did they act too hastily? In his article,
Fast Company’s Mike Wilson discusses some of the advantages of letting
computers write their own languages. First off, computers solve problems
better when the data they’re fed is in “a format that makes sense for
machine learning,” rather than convoluted English. Second, in a world
where computers can speak to each other without human intervention, we
could eliminate the need for APIs to facilitate one program working with
another.
The con here, of course, is that the little baby Terminators
we’re breeding could start talking about us behind our backs. They
could plot to overthrow us in terms we wouldn’t be able to translate.
Maliciously trained AIs – say, those incentivized to destabilize an
electric grid – could independently communicate with vulnerable systems
in an indecipherable language which would make it very difficult for
human hackers to understand what happened and troubleshoot. There’d be
no 404 error codes in this AI-to-AI language. ONLY T-800s.
Radio-Frequency Identification is the use of radio waves to read,
capture, and interact with information stored on a tag. Tags are usually
attached to objects, and can be read from several feet away.
Furthermore, the tag doesn’t always have to be in the direct
line-of-sight to initiate interaction.
An RFID tag is an easy way to assign a unique identity to an object.
Additionally, they do not need an internal power source, while a tag can
be as small as a grain of black pepper. Meaning they are easily
embedded almost anywhere — hence their popularity.
How Does RFID Work?
A basic RFID system comprises two parts: the tag, and the reader.
Tag
The RFID tag has an embedded transmitter and receiver. The actual
RFID component contained in a tag has two parts: an integrated circuit
for storing and processing information, and an antenna to receive and
transmit a signal. The RFID tag has non-volatile memory storage, and can
included either fixed or programmable logic for processing transmission
and sensor data.
Tags can be passive, active, or battery-assistive passive.
A passive tag is the cheapest option, and features no battery. The tag uses radio energy transmitted by the reader.
An active tag features an onboard battery, periodically transmitting its credentials.
A battery-assistive passive tag also features a small onboard battery, but is only activated when in the presence of an RFID reader.
Furthermore, a tag may be either read-only, or read/write. A read-only tag has a factory assigned serial number used for identification in a database, while a read/write tag can have specific custom data written to the tag by the user.
Reader
The RFID reader features a two-way radio transmitted-reciever
(transciever), sometimes referred to as an interrogator. The transceiver
transmits an encoded radio signal to interogate the tag. The radio
signal essentially wakes or activates the tag. In turn, the tag
transponder converts the radio signal into usable power, and responds to
the reader.
Types of RFID System
We generally classify the type of RFID system by the type of tag and reader. There are three common combinations:
Passive Reader Active Tag (PRAT): The reader is passive, only receiving radio signals from an active
tag. Because the tag is battery powered, the transmit/reception range
can be from 0-2,000 feet (0-600m). As such, PRAT is a flexible RFID
solution.
Active Reader Passive Tag (ARPT): The reader is active, transmitting an interrogator radio signal, receiving authentication signal replies from passive tags.
Active Reader Active Tag (ARAT): The reader is active, and interacts with active or battery-assistive passive tags.
In addition to the RFID system type, RFID uses a set of regulated
frequency bands. See the frequency band table below for an understanding
of certain frequencies and their uses.
What is OPID?
Optical RFID (OPID) is an RFID alternative that uses optical readers.
OPID operates in the electromagnetic spectrum between the frequencies
of 333 THz and 380 THz.
How Much Data?
The amount of information stored on an RFID tag varies. For instance,
a passive tag may only store up to 1024 bytes of information — that’s
just one kilobyte (KB). Laughable in terms of modern storage capacity,
but enough to store a full name, identification number, birthday, SSN,
credit card information, and so much more. The aerospace industry,
however, use passive ultra-high frequency RFID tags with 8KB storage to
track part history over time. These could store a massive amount of
personal data on.
Common RFID Uses
RFID tags are everywhere. Because they’re easily attached to almost
anything, have no power requirement, and are potentially minute, they
are used in all walks of life, including:
Goods management and tracking
Person and animal tracking
Contactless payments
Travel documents
Barcodes and security tags
Healthcare data management
Timing
Security
The sudden surge in RFID has created security issues, too. Most
recently, the advent of contactless payment cards featuring an RFID tag
has come under scrutiny. Nefarious individuals were “skimming” payments
from contactless cards using portable payment terminals, all while the
RFID-enabled card resides in the targets pocket or wallet. If you’re
worried about this type of fraud, check out Joel Lee’s run-down on RFID blocking wallets.
In the U.K., another example involves RFID tags
stored in passports. When first introduced, the encryption on the new
U.K. passport was cracked within 48 hours. Additionally, reports emerged
that criminals were stealing post containing a new passport, scanning the RFID tag for the data, and then sending them on their way.
Java is one of the best programming languages for development. The
popularity and usage of Java are still increasing even after two decades
which is a big time for any Programming language. There are only a few
programming languages which seem hard to get replaced and Java is one of
them.Here are 5 reasons why java is one of the best programming language.
Why is Java the best programming Language?
1. Object Orientation
Java is an object-oriented programming language that supports all
principles like Data Abstraction, Encapsulation, Polymorphism,
Overloading, Overriding, and Inheritance. Which makes it as powerful as
C++. We all know C++ is the extended version of C programming. Thus, it
makes Java better than C programming.
2. Rich API
Another big reason to learn Java is it’s Rich API. Java provides API
for almost everything you need in development like I/O, networking,
utilities, XML parsing, database connection etc. Whatever left is
covered by open source libraries like Apache Commons, Google Guava, and
others.
3. Great collection of Open Source libraries
The big organisations like Apache, Google, and others has contributed
to add a lot of great libraries, which makes Java development very
easy, faster and cost effective.
4. Platform Independent and Free
In the 1990s, this was the main reason for Java’s popularity. The
idea of platform independence is great, and Java’s tagline “write once
run anywhere” was enticing enough to attract lots of new development in
Java. This is still one of the reason of Java being best programming
language, most of Java applications are developed in Windows environment
and run in UNIX platform.
Java is free from the start, i.e. you don’t need to pay anything to
create Java application. This FREE thing also helped Java to become
popular among individual programmers, and among large organisations.
5. Wonderful Community and Documentation
There is Java community to help beginners, advanced and even expert
Java programmers. Java actually promotes taking and giving back to
community habit. Lots of programmers, who use open source, tester etc.
The expert programmer provides advice FREE at various Java forums and
StackOverflow. This is simply amazing and gives a lot of confidence to a
newbie in Java.
Javadoc made learning easy and provide an excellent reference while
coding in Java. With an advent of IDE, you don’t even need to look
Javadoc explicitly in a browser, but you can get all information in your
IDE window itself.
Final Notes
Java is everywhere, it’s on the desktop, it’s on mobile, it’s on a card, almost everywhere and so is Java programmers.
Integrated Development Environment (IDE) Like Eclipse and Netbeans made
Java development much easier, faster and fluent. It’s easy to search,
refactor and read code using IDEs.
In our previous article, we have mentioned 10 best android applications for programmers.
These Android applications can help you to increase your programming
knowledge and coding practice. In this article, I am going to share top 5
Android applications to Learn Hacking from your mobile phone.
Many people are using smartphones for study purpose and there are
many Android apps for that. When it comes to Learn Hacking from your
phone, people do not have much knowledge to share.
Hacking Tutorial v2 is a step by step guide that explains various
hacking techniques. This app presents tried and tested tutorials for
beginners looking for a way into the hacking universe. This app shows
you the easiest, most direct ways to safely perform a given hack, how it
works, and most importantly how to protect yourself against them.
Features
All hacking tutorials are guaranteed to work
A Chatroom to discuss hacking with fellow learners
The aim of this application is either to help people begin to learn
about hacking or to see how hackers work, how they can attack and How to
protect yourself. This app explains the every possible hacking
technique and shows how to perform them. It teaches you:
Whitebook is a growing community of White Hat Hackers or so Called the
Security Professionals, We Begin with tutorials and Techniques to become
a Security Professional and Later Will Grow as a Community where with
jobs updates, Project Updates, Support and everything related to Cyber
Security to our user.
HACK HACKERS is an extraordinary tutorial app that will save you from
getting hacked and save your personal details from being misused. It provides the knowledge of how to:
Secure your Wi-Fi password and Wireless Router
Secure your IP address
Prevent your FB account from being hacked
Secure your email account
Make up a password that is both secure and memorable
Secure your WhatsApp chat
Hacking precautions
Precautions for hacked websites
Secure a pen drive?
Protect your private information on FB
How to protect me when online Five Ways to Download Torrents Anonymously
How to hide your IP Address?
The source of information is technotification.com and for more queries you can comment us below.
