How does ping really work

You will get pinged for UberPool rides and UberX rides regardless of your preference.

How does ping really work

Introduction How does the Internet work? The Internet's growth has become explosive and it seems impossible to escape the bombardment of www. Because the Internet has become such a large part of our lives, a good understanding is needed to use this new tool most effectively.

This whitepaper explains the underlying infrastructure and technologies that make the Internet work. It does not go into great depth, but covers enough of each area to give a basic understanding of the concepts involved.

For any unanswered questions, a list of resources is provided at the end of the paper. Any comments, suggestions, questions, etc. Internet Addresses Because the Internet is a global network of computers each computer connected to the Internet must have a unique address.

Internet addresses are in the form nnn. This address is known as an IP address. IP stands for Internet Protocol; more on this later. The picture below illustrates two computers connected to the Internet; your computer with IP address 1. The Internet is represented as an abstract object in-between.

As this paper progresses, the Internet portion of Diagram 1 will be explained and redrawn several times as the details of the Internet are exposed.

In any case, if you are connected to the Internet, your computer has a unique IP address. It's called ping, probably after the sound made by older submarine sonar systems. If you're using a flavor of Unix, get to a command prompt.

How does ping work

The pinged computer will respond with a reply. The ping program will count the time expired until the reply comes back if it does. Also, if you enter a domain name i. More on domain names and address resolution later.


Protocol Stacks and Packets So your computer is connected to the Internet and has a unique address. How does it 'talk' to other computers connected to the Internet?

An example should serve here: Let's say your IP address is 1. The message you want to send is "Hello computer 5. Obviously, the message must be transmitted over whatever kind of wire connects your computer to the Internet.

How does ping really work

Let's say you've dialed into your ISP from home and the message must be transmitted over the phone line. Therefore the message must be translated from alphabetic text into electronic signals, transmitted over the Internet, then translated back into alphabetic text.

How is this accomplished? Through the use of a protocol stack. Every computer needs one to communicate on the Internet and it is usually built into the computer's operating system i.Check It Out - The Ping Program: If you're using Microsoft Windows or a flavor of Unix and have a connection to the Internet, there is a handy program to see if a computer on the Internet is alive.

Using ping in C# is achieved by using the method, which runs a ping request to the provided valid IP address or URL, and gets a response in return which is called Internet Control Message Protocol (ICMP) Packet that contains a header of 20 bytes that contains the response data from the pinged server which received the ping request, framework .

Just an addition to what others have given, even though they work well but in some cases if internet is slow or some unknown network problem exists, some of the codes won't work (isReachable()).

But this code mentioned below creates a process which acts as a command line ping (cmd ping) to windows. Internet does use set of protocols. The most common ones are TCP and UDP.

How does ping really work

But there are much more of them. One of them is called ICMP (Internet Control Message Protocol). Among other types of messages it allows to send there are Echo Request and Echo . This does work, but is there a way to make it automatic? tomking06 UTC #5 @ Tariq, ping is a signal sent out to the search engines when you post something new to your blog.

So, I am done with my part and now it’s your turn to ping your blog or website for better indexing and ranking. To get the extra cake for your work make sure you are also pinging the sources of backlinks.

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