Beginner help with distributed Erlang

Thomas Lange <>
Mon Jul 15 01:16:40 CEST 2002


You have to set a cookie for each node to be 
able to use the erlang distibution.

-setcookie My_cookie

Of course, the cookie should be the same on 
both nodes ;-)

/Thomas

Alex Peake wrote:
> 
> I am just starting to try distributed Erlang.
> 
> I am in the Windows 2000 world. I have two machines in a domain (FEY).
> 
> On machine 1 (the server) called predator I start Erlang:
> erl -name predator
> I get:
> ()1>
> 
> So far so good (I think).
> 
> On machine 2 (the client) called functional I start Erlang:
> werl -name functional
> I get:
> ()1>
> 
> OK so far (I think).
> 
> I try:
> net_adm:names(predator).
> and get:
> {ok,[{"predator",4888}]}
> 
> which I think is OK (4888 is what I get over on predator for net_adm:names().
> 
> Now when I try from functional:
> net_adm:ping('').
> I get pang, and I see on the predator screen:
> ** Connection attempt from disallowed node ''
> 
> I tried the sample banking example from the book (chapter 6) and of course receive similar
> responses.
> 
> I tried (on the server):
> net_kernel:allow('').
> and get:
> ok
> 
> However, I still get the same:
> ** Connection attempt from disallowed node ''
> 
> Can someone help me please? What am I missing?
> 
> Alex



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