From: Rene Tschirley <pooh@...>
Date: 2002-10-17T00:43:41+09:00
Subject: XML-RPC connection failed

Dear Ruby Experts,


I'm quite new to Ruby and was glad to be able to use this fantastic 
language for writing short scripts. I use ruby to provide several hosts 
with a special service using XML-RPC. The connection works well as long as 
client and server run on the same host. The connection fails if the 
connection request comes from a distant host.

My server is set up with:

   require "xmlrpc/server"

   server = XMLRPC::Server.new(6670)
   server.add_handler("xaiServer", RPCHandler.new)
   server.serve

as it was written in the XML-RPC example. The client connect with

   require "xmlrpc/client"

   xaiServer = XMLRPC::Client.new("localhost", "/RPC2", 6670,
			       nil, nil, nil, nil, false, 10)

If I change "localhost" to my IP address or full qualified host name, the 
client terminates with this messages:

   /usr/lib/ruby/1.6/net/protocol.rb:343:in `new': Connection refused -
   "connect(2)" (Errno::ECONNREFUSED)
         from /usr/lib/ruby/1.6/net/protocol.rb:343:in `connect'
         from /usr/lib/ruby/1.6/net/protocol.rb:342:in `timeout'
         from /usr/lib/ruby/1.6/net/protocol.rb:342:in `connect'
         from /usr/lib/ruby/1.6/net/protocol.rb:329:in `initialize'
         from /usr/lib/ruby/1.6/net/protocol.rb:107:in `new'
         from /usr/lib/ruby/1.6/net/protocol.rb:107:in `conn_socket'
         from /usr/lib/ruby/1.6/net/http.rb:360:in `do_start'
         from /usr/lib/ruby/1.6/net/protocol.rb:93:in `start'
         from /usr/lib/ruby/1.6/net/http.rb:490:in `request'
         from /usr/lib/ruby/1.6/net/http.rb:473:in `request_post'
         from /usr/lib/ruby/1.6/xmlrpc/client.rb:488:in `do_rpc'
         from /usr/lib/ruby/1.6/xmlrpc/client.rb:382:in `call2'
         from /usr/lib/ruby/1.6/xmlrpc/client.rb:372:in `call'
         from ./getPresentations:35

If I use only the hostname (my system is able to resolve its hostname), I 
get a timeout error:

   /usr/lib/ruby/1.6/timeout.rb:35:in `connect': execution expired
   (TimeoutError)


Any advice?


Yours,
	Rene