From: Brandon Coleman <metrix1978@...>
Date: 2006-07-31T14:05:18+09:00
Subject: DRB ruby ACL problems

I have spent several hours trying to workout why drb ruby will not allow 
a remote pc to connect to my server to pull objects..
Here's where I stand with the problem:
Debian server is on 192.168.0.2 running ruby 1.8.2
Windows client is on 192.168.0.37 running ruby 1.8.4
I know the versions are different, but I'm worried that updating Debian 
might break some packages.. I'm still looking into that part.. if I 
could at least get it to connect I would be happy


run drbtest.rb on debian server, do the following tests,
run drbclient from debian server: connects
run drbclient from a windows machine: does not connect
run telnet to the drb port on debian server: does not connect
run telnet to the drb port, but have netcat running: connects

for some reason I can't get access to that port from another machine 
with ruby running. I have tried to create an ACL list, but it doesn't 
seem to help.  If anyone can point me in the direction of documentation, 
or a code snippet that might fix the problem, it would be greatly 
appreciated.

Server code snippet:
--------------------------------
require 'drb'
require 'drb/acl'

  class TestServer
    def doit
      "Hello, Distributed World"
    end
  end

  acl = ACL.new(%w[deny all
    allow 192.168.0.*
    allow localhost
    allow 127.0.0.1
   ] )


  DRb.install_acl(acl)

  aServerObject = TestServer.new
  DRb.start_service('druby://cindy:88585', aServerObject)
  DRb.thread.join # Don't exit just yet!


Client code snippet:
--------------------------------
require 'drb'
  DRb.start_service()
  obj = DRbObject.new(nil, 'druby://cindy:9999')
  # Now use obj
  p obj.doit

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