URL stands for Uniform Resource Locator. It is, basically physical addresses of objects which are retrievable using protocols already deployed on the internet. Each page has its own unique web address (URL). This is how your computer locates the web page that you we would like to visit
Some examples of URLs are http://www.cnet.com/, http://web.mit.edu/, ftp://info.apple.com/.
Not every URL is of the same kind. Some begins with ‘http’, ‘ftp’ etc. The initial part of a URL indicates what kind of resource it is addressing. Here is a list of the different resource prefixes:
• http - a hypertext directory or document (such as a Web page)
• ftp - a directory of files or an actual file available to download
• gopher - a gopher document or menu
• telnet - a Unix-based computer system that you can log into
• news - a newsgroup
• WAIS - a database or document on a Wide Area Information Search database
• file - a file located on your hard drive or some other local drive [1]
A URL contains the following information:
The second part of a URL (after the ‘://’) contains the address of the target computer being located as well as the path to the file in that computer.
For example, in ‘http://alumni.sju.edu/s/1378/start.aspx’ ‘alumni.sju.edu’ is the address or domain name of the host computer and ‘/s/1378/start.aspx’ is the path to the file.
Why Analysts should know about URLs:
The goal of implementing a URL Tagging Strategy is to understand how each advertising campaign you run
This file holds the hostname and IP address of the local system. It also holds a special
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 alternate domain name (CNAME) is the place where you’ll put the URL to pull the content from.
IIS7, to protect its own server functions, as well as those of other Web Sites and Windows Server 2008 itself, can isolate Web applications in separate address spaces called
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
Client requests file from the cold cache of the server and stores file on its disk.
12. Which Web page appears when you key a URL containing the server’s IP address instead of a name? Why?
Line 1) In this line, the code begins with the variable. A variable in small basic contains information, and stores it so that it can be used later on in the programme. The variable is called “FilePath” within this variable, the file with all the keywords is stored. This will allow the keywords to be accessed and used throughout the rest of the programme.
at the end of the file at the beginning of the file in the middle of the file after the file header
The next step is to obtain the IP address from the domain name. This is performed by DNS. A DNS lookup, in a general sense, is the process by which a DNS record is returned from a DNS server. Interconnected computers, servers and smart phones need to know how to translate the email addresses and domain names people use into meaningful numerical addresses. A DNS lookup performs this function.
* The network layer address is used primarily by network layer software. A web address is translated into an IP address via a network layer protocol (in this case, IP used on the internet.) The IP address translated can be 4 bytes long with IPv4 (e.g., 129.79.127.4), which is today’s standard. The process can be compared to looking up a name in a find book to find their phone number.
Many of the documents are transferable from the Internet using a member of the TCP/IP family called:
on the network in the same way as if the file was on the local disk. It can be easily ported to various
DNS works in that when you type www.csuci.edu into your web browser, it will search for an address that matches the name. Your browser will first check the local host to see if the IP address for www.csuci.edu is cache. If the IP address for www.csuci.edu is not cache, your browser will then send a query over the internet to find an IP for www.csuci.edu. It will first interact with the resolving name server or resolver for short. The resolver is most commonly your internet service provider resolver. It will ask the resolver what IP address www.csuci.edu can be found at. The resolver will search it cache for the IP address associated with www.csuci.edu. If it cannot find the answer, it will then pass it
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.