Net::LDAP::LdapError: no connection to server

[Gustaf Lindqvist]

Trying to establish a connection from a module in Rails and get no connection to server. I have tested the same code outside Rails and it works fine.

#!/usr/bin/ruby -w

require 'rubygems'

require 'net-ldap'

module Foo

  module Bar

    class User

      attr_reader :ldap_connection

      def initialize

        @@ldap = Net::LDAP.new(:host => "<ip-number>", :port => 389)

        @@treebase = "ou=People, dc=foo, dc=bar"

        username = "cn=Manager"

        password = "password"

        @@ldap.auth username, password

        begin

          if @@ldap.bind

            @ldap_connection = true

          else

            @ldap_connection = false

          end

        rescue Net::LDAP::LdapError

          @ldap_connection = false

        end

      end 

end

end

end

Any ideas why this is failing in Rails. Does net-ldap do any dns lookup that might get wrong inside Rails stack?