What is the difference between 127.0.0.1 and localhost




















Asked 6 years, 7 months ago. Active 1 year, 11 months ago. Viewed 22k times. I read here that: Improve this question. Dhiwakar Ravikumar Dhiwakar Ravikumar 1, 5 5 gold badges 23 23 silver badges 37 37 bronze badges. Because that address is in the Your first line "I read here that:" seems to indicate that your name is "I". So is your name "Dhiwakar" or is it "I"? Possible duplicate of Difference between localhost and the ip address — Rick.

Add a comment. Active Oldest Votes. Improve this answer. Is the router also the gateway or are they two different entities? You can also have multiple addresses on an interface, FWIW. Your system can have many ip addresses, and many adaptors, physical or virtual. In this case, Q1: Yes Q2 No There's a few things that need to communicate internally with a system - a simple example would be that you'd use Community Bot 1. Question 1: The IPv4 address of your computer is, as the ipconfig command reports, As for the As you mentioned, on a typical computer, And you can change it if you want, but this generally isn't recommended.

What is the loopback address used for? Various things. Question 2: The James James 2 2 silver badges 10 10 bronze badges. To provide you with a more simple answer than the other textbook answers I see : Did you know you can ping True story. Jordan Granados Jordan Granados 96 3 3 bronze badges.

Good simple answer. To add a bit more: Use localhost or As such, you can use localhost even if you don't have an internet connection.

If you want to connect to your own computer, you can do so like any other IP address. Open up your web browser and type If you can't remember numbers very well, you can type localhost instead. If you type this in without any prior setup, you won't find anything exciting. It's likely that your browser will tell you that your computer refused your request.

This sounds a little odd, as your computer basically denied itself from connecting to itself; however, it only did so because it's not expecting any connections at this time. As such, it has no reason to let itself connect to itself, as weird as that sounds! So we have this useful way of telling our PC to connect to itself, but why would we bother in the first place?

What practical applications does this have? While When you do, your computer now has a reason to listen to incoming connections, so it won't refuse your request. In fact, it will allow you to access a server hosted on your PC as if you were looking at it via the internet.

This is valuable when you're working with networking software and want to ensure everything runs smoothly before putting it on the internet.

For example, let's say you're setting up a server that you want others to connect to in the future. Regardless of if you're using premade software or you're coding the server yourself, you may want to give it a "test run" to ensure it works before letting others connect.

To do this, you can run the server on your computer, then connect to it using The server will load in your browser as if you had connected to it via the internet while also barring anyone else from peeking in on your work-in-progress. You can see this in action in our guide on how to set up your own WAMP server. Generally speaking, localhost is a better option when configuring local testing environment. Sometimes some connection is working with localhost but is not working with Furthermore, when using localhost to access resource, it is accessed with the local user privileges, while it will use the network user privileges when using Toggle navigation.

Today's Question: How much time do you code every day? What is it if there is? Below table summarizes the differences localhost



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