# Default server port

**URL:** <https://www.ruby-forum.com/t/default-server-port/49514>\
**Category:** Rails\
**Created:** [December 5, 2005, 5:12pm UTC](https://www.ruby-forum.com/t/default-server-port/49514 "2005-12-05T17:12:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![moosebrookfarm](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bcef8e/32.png) [@moosebrookfarm](https://www.ruby-forum.com/u/moosebrookfarm)\
**Post date:** [December 5, 2005, 5:12pm UTC](https://www.ruby-forum.com/t/default-server-port/49514/1 "2005-12-05T17:12:28Z")

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Hi all -

sorry if this is a dumb question but I can’t figure out how to tell  
Rails to launch to say localhost or 127.0.0.1 instead of 0.0.0.0

the reason is that several developers are having strange network  
problems when using 0.0.0.0 and we use google maps that needs to be  
tied to a specific domain or IP address.

Thanks  
Mike

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<div class="post-metadata">

**Author:** ![moosebrookfarm](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bcef8e/32.png) [@moosebrookfarm](https://www.ruby-forum.com/u/moosebrookfarm)\
**Post date:** [December 5, 2005, 5:37pm UTC](https://www.ruby-forum.com/t/default-server-port/49514/2 "2005-12-05T17:37:36Z")

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Hello,

from source code webrick.rb onto rails tree

opts.on("-p", “–port=port”, Integer,  
“Runs Rails on the specified port.”,  
“Default: 3000”) { |OPTIONS[:port]| }  
opts.on("-b", “–binding=ip”, String,  
“Binds Rails to the specified ip.”,  
“Default: 0.0.0.0”) { |OPTIONS[:ip]| }  
opts.on("-e", “–environment=name”, String,  
“Specifies the environment to run this server under  
(test/development/production).”,  
“Default: development”) { |OPTIONS[:environment]| }  
opts.on("-m", “–mime-types=filename”, String,  
“Specifies an Apache style mime.types configuration  
file to be used for mime types”,  
“Default: none”) { |mime\_types\_file|  
OPTIONS[:mime\_types] =  
WEBrick::HTTPUtils::load\_mime\_types(mime\_types\_file) }

opts.on("-d", “–daemon”,  
“Make Rails run as a Daemon (only works if fork is available  
– meaning on \*nix).”  
) { OPTIONS[:server\_type] = WEBrick::Daemon }

opts.on("-c", “–charset=charset”, String,  
“Set default charset for output.”,  
“Default: UTF-8”) { |OPTIONS[:charset]| }

opts.separator “”

opts.on("-h", “–help”,  
“Show this help message.”) { puts opts; exit }

hope this help

## Ciao

Mathieu

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<div class="post-metadata">

**Author:** ![moosebrookfarm](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bcef8e/32.png) [@moosebrookfarm](https://www.ruby-forum.com/u/moosebrookfarm)\
**Post date:** [December 5, 2005, 5:57pm UTC](https://www.ruby-forum.com/t/default-server-port/49514/3 "2005-12-05T17:57:58Z")

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If you’re using webrick, it’s the ‘-b’ flag to ./script/server

```
 ./script/server -h

```

will list the other options you can use

On 05/12/05, Michael E. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Mike
> 
> * * *
> 
> Rails mailing list  
> removed\_email\_address@domain.invalid  
> [http://lists.rubyonrails.org/mailman/listinfo/rails](http://lists.rubyonrails.org/mailman/listinfo/rails)

–  
Rasputin :: Jack of All Trades - Master of Nuns  
[http://number9.hellooperator.net/](http://number9.hellooperator.net/)

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<div class="post-metadata">

**Author:** ![moosebrookfarm](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/bcef8e/32.png) [@moosebrookfarm](https://www.ruby-forum.com/u/moosebrookfarm)\
**Post date:** [December 5, 2005, 6:10pm UTC](https://www.ruby-forum.com/t/default-server-port/49514/4 "2005-12-05T18:10:29Z")

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Thanks guys - actually we’re using lighttpd so I just went ahead and  
modified

commands/servers/lighttpd.rb

to point to 127.0.0.1

the -h flag doesn’t appear to work with lighttpd.

Mike