Have you ever wondered that how would your mail and visitors would reach your home without your address? It is impossible to find a person without an address. Similarly on the Internet you will require an URL to locate a website. URL is short for Uniform Resource Locator. It is a global address for documents and websites on the World Wide Web.
URL is a specific type of URI (Uniform Resource Identifier). The general format of URL looks like scheme:[//[user:password@]domain[:port]][/]path[?query][#fragment]
The first part of an URL is scheme. Protocols like http, https, ftp, mailto, file and data that are registered with the IANA (Internet Assigned Numbers Authority) are used in the scheme. This part of the URL determines that the website should be accessed by using which protocol and what port. The accessing computer should have access to the website and the particular port (for e.g. Port 80 for HTTP) must be open. The double (//) forward slashes are optional. Then comes the username and password pair with @ which is required to access the domain’s backend using ftp protocol and you need user credentials to access. Domain name is like the name for this site. On the World Wide Web each computer has unique IP, and in order to access this computer or the data in that computer we would have to know its IP to establish a connection with this machine. However remembering an IP address (i.e. 192.168.0.1) is not easy so this IP addresses are linked with domain names which are
When you type in a web address, e.g.www.google.com. DNS associates with the domain name, translates into IP address (for example 192.168.154.70 is the IP for google.com) and directs your Internet connection to the correct website.
The IP address is given a unique identification it is one of kind IP address, so it can be trace for any internet activity and find the exact location of website. Domain names are used because it is easier to remember the name rather than the entire website address. All computers on the net have what area unit termed net Protocol addresses ordinarily called associate degree scientific discipline address to be ready to communicate across the network. These addresses, that area unit assigned to all or any computers on a network, area unit created of numerals separated by a dot that don't seem to be essentially simple for North American country to recollect. Therefore, whereas computers simply use these scientific discipline addresses to attach and communicate with one another, it's somewhat more difficult for North American country. It's with keeping such in mind that, net designers and controllers have return up with a translation system that identifies additional simply remembered characters with every and each scientific discipline address. With DNS we need to have the integrated namespace so following DNS use is proposed: an internal DNS namespace, used only on your own network; internal DNS to communicate with external DNS forwarding; and an external DNS namespace to communicate with external
An Internet Protocol address is a numerical label given to each device participating in a network that uses the Internet Protocol for communication
12. Which Web page appears when you key a URL containing the server’s IP address instead of a name? Why?
DNS- DNS stands for domain name server and is a network of servers that keep track of Internet Domain Names. Its main job is to authenticate and find domains. It translates IP Addresses into numbers, for example, 172.194.40.143 translates into
1.Basic Authentication- Basic authentication is one of the two mechanisms in HTTP 1.1 specification . It required the safe http communication i.e. https communication for encoding.
The first step is to identify whether the URL is of http or https. In the beginning, network administrators had to figure out how to share the information they put out on the Internet. It is agreed on a procedure for exchanging information and called it HyperText Transfer Protocol. Using HTTPS, the computers agree on a "code" between them, and then they scramble the messages using that "code" so that no one in between can read them. This keeps your information safe from hackers. It uses the "code" on a Secure Sockets Layer (SSL), sometimes called Transport Layer Security (TLS) to send the information back and forth.
Define URL and why you as an analyst should care about its importance. Explain the URL Parameters. Explain cookies and why these matter.
Scientists in the same year began to create what is known as today as the Modern World Wide Web, the emergence of the modern Internet today. Several online web servers held information on pages of text known as websites, in which they each had their own website name to access (History of the Internet). A new application called the web browser was created in order to access all of the web pages available on the internet to the public. The way the information was presented on the web page was with a hypertext markup language (HTML); this would become a standard format to display informational text (Goel, Tarun). A URL link was also introduced on the web browser as an address to access web pages for the public. The result of the internet had changed how people have done research to access more information and how people have communicated with one another (Goel, Tarun).
A web address that specifies the exact location of a web page. Uses letters and words that map to an IP address and a
World Wide Web – Also known as WWW, which has a vast of data, websites, files and everything that would be connected to the internet. It is the structure for the servers that supports all kinds of formatted documents. The formatted documents are in HTML (Hypertext Mark-up language) which would be able to link in other documents such as graphics audio and video files. This is efficient as the user can go from document to another. Web browsers such as Google Chrome, Safari, and Internet Explorer allow World Wide Web to be operated so that the websites are easily accessible.
A URL (Universal Resource Locator) is defined, according to contests.about.com, as the “other name for a web address or the text that a web visitor types into their internet browser when visiting a website.” [1]. Contests.about.com, states further that once the web visitor provides the browser with a URL, it can find where to go in locating the web page that wants to be visited. The web page symbolizes the “resource” that the browser is trying to locate with a URL. Webopedia.com, defines a URL as the “global address of available documents and other resources on the world wide web.” [2]. Webopedia.com elaborates further that the first part of a URL is known as a protocol identifier and it indicates what protocol to use, and the second part is the resource name and it specifies the IP address or the domain name where the resource is located. A URL is the address of a webpage or file on the internet. For example, the URL of amazon website is “http://amazon.com”. The address of Amazon’s coupon page is
Below I have described the few steps to provide the information about how the DNS works.
So how does one use or "navigate" on the Web? To understand that, one must first understand the language (that which makes it run, understand and execute commands) the web is based upon. This language is known as Hypertext Markup Language, which will later be discussed in more detail. Essentially, it the hypertext language uses "hot words to link pages to each other" (Halonen). The hot words, which have been termed links, consist of an underlying code, HTML, which is read and takes the user to the desired destination.
Computers (and other network devices like smartphones or tablets) use IP addresses to identify each other on the network and route your request to the site you are trying to access. It is just like dialing a phone number to reach the person you want to talk to, but thanks to DNS, you don’t need to maintain your own address book of IP addresses. You will simply connect via DNS server (also called “domain name server” or just “name server”). Domain name system servers match domain names like coursera.org to their associated IP addresses.