DRB ruby ACL problems

ruby-talk
1

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

--
Posted via http://www.ruby-forum.com/.

2

Brandon Coleman wrote:

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.
  

What error message are you getting when you try to connect to the server? I remember I had a similar problem a while back. It turned out to have something to do with not having the correct config in my /etc/hosts file, I think. In other words, it wasn't a drb problem, but something with how the network addresses were getting resolved.

Sorry I can't remember more. I think I remember someone having a similar issue a few months ago on this list, so you might want to search the archives.

Jamey Cribbs

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