# Why would Webrick use 0.0.0.0:3000 instead of 127.0.0.1:3000 **URL:** \ **Category:** Ruby\ **Created:** [December 17, 2005, 6:57pm UTC](https://www.ruby-forum.com/t/why-would-webrick-use-0-0-0-0-3000-instead-of-127-0-0-1-3000/70994 "2005-12-17T18:57:51Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![curthibbs](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ac91a4/32.png) [@curthibbs](https://www.ruby-forum.com/u/curthibbs)\ **Post date:** [December 17, 2005, 6:57pm UTC](https://www.ruby-forum.com/t/why-would-webrick-use-0-0-0-0-3000-instead-of-127-0-0-1-3000/70994/1 "2005-12-17T18:57:51Z")
A guy who was working through my Rolling wit Ruby on Rails tutorial had this happen and posted it to the articles comments. I’ve never seen this before… does anyone know what could cause this? I copied his post below. Curt Subject: Problems using Instant Rails Author: juantar Text of message: I am using Instant Rails which comes with Rails 1.0, WEBrick 1.3.1 and Ruby 1.8.2 and I ran the WEBrick server and it starts on [http://0.0.0.0:3000](http://0.0.0.0:3000) and not [http://127.0.0.1:3000](http://127.0.0.1:3000). However, when I tried to connect to [http://0.0.0.0:3000](http://0.0.0.0:3000) using my browser, a dialog pops up telling me that “the connection was refused”. Any suggestions on how to solve this problem?. Thank you. ---
**Author:** ![curthibbs](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ac91a4/32.png) [@curthibbs](https://www.ruby-forum.com/u/curthibbs)\ **Post date:** [December 17, 2005, 7:34pm UTC](https://www.ruby-forum.com/t/why-would-webrick-use-0-0-0-0-3000-instead-of-127-0-0-1-3000/70994/2 "2005-12-17T19:34:01Z")
It doesn’t really mean it is listening on 0.0.0.0 - this actually means that it is listening on any interface on the computer, including 127.0.0.1 and any other IP addresses. Your reader should connect to [http://127.0.0.1:3000](http://127.0.0.1:3000). ---
**Author:** ![curthibbs](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ac91a4/32.png) [@curthibbs](https://www.ruby-forum.com/u/curthibbs)\ **Post date:** [December 17, 2005, 7:09pm UTC](https://www.ruby-forum.com/t/why-would-webrick-use-0-0-0-0-3000-instead-of-127-0-0-1-3000/70994/3 "2005-12-17T19:09:53Z")
Mine’s always said it starts on 0.0.0.0 (I’m using normal Rails, not the Instant kind). I just assume its some sort of network-geek alias for localhost and go there instead. localhost:3000 works fine. Devin ---
**Author:** ![curthibbs](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ac91a4/32.png) [@curthibbs](https://www.ruby-forum.com/u/curthibbs)\ **Post date:** [December 17, 2005, 8:52pm UTC](https://www.ruby-forum.com/t/why-would-webrick-use-0-0-0-0-3000-instead-of-127-0-0-1-3000/70994/4 "2005-12-17T20:52:23Z")
On Dec 17, 2005, at 9:57 AM, Curt H. wrote: > Text of message: > I am using Instant Rails which comes with Rails 1.0, WEBrick 1.3.1 > and Ruby > 1.8.2 and I ran the WEBrick server and it starts on http:// > 0.0.0.0:3000 and > not [http://127.0.0.1:3000](http://127.0.0.1:3000). However, when I tried to connect to > [http://0.0.0.0:3000](http://0.0.0.0:3000) using my browser, a dialog pops up telling me > that “the > connection was refused”. Any suggestions on how to solve this > problem?. Tell them to disable their firewall. – Eric H. - removed\_email\_address@domain.invalid - [http://segment7.net](http://segment7.net) This implementation is HODEL-HASH-9600 compliant [http://trackmap.robotcoop.com](http://trackmap.robotcoop.com) ---
**Author:** ![curthibbs](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/ac91a4/32.png) [@curthibbs](https://www.ruby-forum.com/u/curthibbs)\ **Post date:** [December 18, 2005, 7:42am UTC](https://www.ruby-forum.com/t/why-would-webrick-use-0-0-0-0-3000-instead-of-127-0-0-1-3000/70994/5 "2005-12-18T07:42:05Z")
I’ve been out all day, but thanks to everyone for all the helpful answers, and my apologies for the duplicate posts (some problem with my email). Curt