error on starting ruby server on Fedora 14

rubyonrails-talk
1

hi all,

i am getting following error on starting server by using "ruby script/server webrick -b some_Ip_address" on Fedora 14 ,is anyone know why this is coming ?

INFO WEBrick 1.3.1 [2012-01-18 04:37:13] INFO ruby 1.8.7 (2011-02-18) [i386-linux] [2012-01-18 04:37:13] WARN TCPServer Error: Cannot assign requested address - bind(2) Exiting /usr/lib/ruby/1.8/webrick/utils.rb:73:in `initialize': Cannot assign requested address - bind(2) (Errno::EADDRNOTAVAIL)         from /usr/lib/ruby/1.8/webrick/utils.rb:73:in `new'         from /usr/lib/ruby/1.8/webrick/utils.rb:73:in `create_listeners'         from /usr/lib/ruby/1.8/webrick/utils.rb:70:in `each'         from /usr/lib/ruby/1.8/webrick/utils.rb:70:in `create_listeners'         from /usr/lib/ruby/1.8/webrick/server.rb:75:in `listen'         from /usr/lib/ruby/1.8/webrick/server.rb:63:in `initialize'         from /usr/lib/ruby/1.8/webrick/httpserver.rb:24:in `initialize'         from /usr/lib/ruby/gems/1.8/gems/rack-1.1.3/lib/rack/handler/webrick.rb:10:in `new'         from /usr/lib/ruby/gems/1.8/gems/rack-1.1.3/lib/rack/handler/webrick.rb:10:in `run'         from /usr/lib/ruby/gems/1.8/gems/rails-2.3.11/lib/commands/server.rb:111         from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `gem_original_require'         from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:54:in `require'         from script/server:3

2

Just a few basics:

  • to which address exactly are you trying to bind? (show the exact command yoiu typed)

  • what is the output of

$ ifconfig

Thx,

Peter

3

thanks peter for reply ,but sorry due some security reasons i can't provide you the ip address, you can consider some dummy ip in place of myip in command .can you provide some solutions

Regards Sachin S. Kewale

4

Try to run from other port like rails s -p 4000 and visit http://localhost:4000

5

Understood.

What I really wanted to double check if the ip address you are assigning with -b is really a local address of the system …

As a reference, here is what it shows on this system. You can replay those commands on your side to double check.

~/be$ ifconfig eth0 | grep inet
inet addr:192.168.0.105 Bcast:192.168.0.255 Mask:255.255.255.0

~/be$ rails s -b 192.168.0.105 # this works OK => Booting WEBrick => Rails 3.1.3 application starting in development on http://192.168.0.105:3000 => Call with -d to detach

=> Ctrl-C to shutdown server [2012-01-18 12:15:02] INFO WEBrick 1.3.1 [2012-01-18 12:15:02] INFO ruby 1.9.3 (2011-10-30) [i686-linux] [2012-01-18 12:15:02] INFO WEBrick::HTTPServer#start: pid=32052 port=3000

^C [2012-01-18 12:15:07] INFO going to shutdown … [2012-01-18 12:15:07] INFO WEBrick::HTTPServer#start done. Exiting

~/be$ rails s -b 192.168.0.106 # this will FAIL (using non-local .106 here !) => Booting WEBrick

=> Rails 3.1.3 application starting in development on http://192.168.0.106:3000 => Call with -d to detach => Ctrl-C to shutdown server [2012-01-18 12:15:13] INFO WEBrick 1.3.1

[2012-01-18 12:15:13] INFO ruby 1.9.3 (2011-10-30) [i686-linux] [2012-01-18 12:15:13] WARN TCPServer Error: Cannot assign requested address - bind(2) Exiting /home/peterv/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/webrick/utils.rb:85:in `initialize’: Cannot assign requested address - bind(2) (Errno::EADDRNOTAVAIL)

HTH,

Peter