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paladi
Posted: Tue Oct 23, 2007 3:30 pm Reply with quote
Joined: 10 Sep 2007 Posts: 2 Location: Sweden
Hi!

I am trying to write a TCP server, mostly using a gen_tcp behaviour. The problem is that I can not start to "listen", apparently because the application can not open the port (just my guess);

Generally, the question is: what does "error,eacces" mean?...the answer should ginve me some hints to find a solution...

I am using Ubuntu 7.04; no firewalls (disabled iptables that were enabled by default); exactly the same code works fine on other machines;

I get the following error:

=ERROR REPORT==== 23-Oct-2007::17:03:39 ===
Error in process <0.47.0> with exit value: {{badmatch,{error,eacces}},[{server,listen,1},{erl_eval,do_apply,5},{shell,exprs,6},{shell,eval_loop,3}]}

** exited: {{badmatch,{error,eacces}},
[{server,listen,1},
{erl_eval,do_apply,5},
{shell,exprs,6},
{shell,eval_loop,3}]} **


any good ideas?

Thanks!
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anderst
Posted: Wed Oct 24, 2007 3:31 pm Reply with quote
User Joined: 21 Nov 2006 Posts: 37
What port number are you trying to open? Some OS do not allow you to listen on a range of ports.

Hilsen,
Anders
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paladi
Posted: Wed Oct 24, 2007 7:12 pm Reply with quote
Joined: 10 Sep 2007 Posts: 2 Location: Sweden
You were right -- seems like the OS didn't want to open the port that I wanted, i.e. I couldn't open a port under 1024...

Trying other ports helped. Thanks for the great idea!

Nico
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