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Questions tagged [localhost]

`localhost` usually refers to the special addresses `127.0.0.1` and `::1` that map to a loopback device, which allows a computer to connect to itself.

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What's the difference between 127.0.0.1 and 0.0.0.0?

I understand that 127.0.0.1 points to localhost, and so does 0.0.0.0 (correct me if I'm wrong). So, what's the difference between 127.0.0.1 and 0.0.0.0?
Sagnik Sarkar
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Why is localhost IP 127.0.0.1?

I wondered what is the origin of the decision to make localhost's IP address 127.0.0.1. What is the "meaning" of 127? what is the "meaning" of 0.0.1?
Roee Adler
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Why is my localhost not 127.0.0.1 but ::1, and what notation is that?

When I use the Ping command against my localhost (on Windows Vista), it doesn't show up as 127.0.0.1. C:\Windows\system32>ping localhost Pinging GIGA [::1] from ::1 with 32 bytes of data: Instead, it shows up as ::1 (pair of colons and a one).…
Samir
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How to kill a localhost:8080

I'm trying to kill a dev server setup via yarn on Windows. While I Ctrl+C'd the command prompt, when I went back to localhost:8080 it had not stopped. How can I kill the process?
Sam Fuller
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How can I use curl with ::1 for ipv6 based loopback?

I tried a few ways but they seem to be confusing curl. root@testt:~# curl localhost:8080

Hello world!

Boom Bam Splat

root@testt:~# curl ::1:8080 curl: (3) IPv6 numerical address used in URL without brackets root@testt:~# curl…
hak8or
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How to find out what is running on localhost port

I have something running at port 9090 on my local machine. It's probably something I set up long ago and forgot about... how can I find out what it is? I am using Windows 8.
BanksySan
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ERR_ICANN_NAME_COLLISION when trying to use localhost .dev in Chrome

Today I got this error when trying to access local domains specified in apache httpd-vhosts.conf. It happened for the 1st time with a .dev domain, so it seemed plausible that in light of recent news Goggle finally got it. However, I tried with other…
konrad
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Why is there a difference between ping "localhost" and ping "local IP address"?

Using cmd and ping on Windows gave me the following results: Pinging "localhost": Pinging "192.168.0.10" (local IP address): Aren't both situations exactly the same? I mean, I'm pinging the same interface, the same machine and the same…
Diogo
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How to alias a hostname on Mac OSX

In a nutshell, I would like to be able to open a browser and open local.example.com but it actually loads http://localhost/path/to/example.com/ I am using Mac OSX 10.5, and not afraid to get my hands dirty with the terminal :) I use Apache as my…
Austin Hyde
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The easiest way to serve a page to localhost on OS X

I have a page that I need to serve on localhost for the fonts to appear properly. What is the easiest way to do this (on a Mac)?
Zachary Russell Heineman
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Why does the registered domain name “localtest.me” resolve to 127.0.0.1?

I was reading an article about Server-Side Request Forgery. In that article the attacker found that 127.0.0.1 was open to the internet. The victim then blocked 127.0.0.1, but because many other IPs and apparently also some domains are also resolved…
not2qubit
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Curl local host names on Mac OS X Yosemite

I just upgraded from Mavericks to Yosemite, and now curl can't see loopback host names. Set up a simple http server to test: $ python -m SimpleHTTPServer Serving HTTP on 0.0.0.0 port 8000 ... Now I can hit localhost:8000 in chrome. I can even wget…
Nick Retallack
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How can I specify IP and ports for a hostname in the Windows hosts file?

I want to specify host names with two different ports in the Windows hosts file. Is there a way to do it? Or is it not allowed by Windows itself? I have been wasting my time searching for the solution for the last 8 hours. Is it possible to…
SIA
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IE doesn't work with localhost + port

I have a NodeJS server running on my local machine for development purposes. By default, it uses port 1337. (I've tried a handful of other ports such as 8080, 1234, 9000, 9090, 65432 et al). I can successfully connect to this NodeJS server from…
mawcsco
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Why does the “Internet of Things” enforce the need for IPv6 addresses?

If you have multiple devices in one network, the amount of IPv4 addresses will not increase linearly to accomodate the number of devices. There is just one IPv4 address per Network/Router that is connected to the Internet. How does the “Internet of…
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