I solve this problem. I write this solution that other friends can use.

I change hostname to localhost.localdomain (127.0.0.1) with the following command:
hostnamectl set-hostname 127.0.0.1

I didnt received the previous error.
 but :
configuration file /Users/fangohr/.mpd.conf not found
A file named .mpd.conf file must be present in the user's home
directory (/etc/mpd.conf if root) with read and write access
only for the user, and must contain at least a line with:
MPD_SECRETWORD=<secretword>
One way to safely create this file is to do the following:
  cd $HOME
  touch .mpd.conf
  chmod 600 .mpd.conf
and then use an editor to insert a line like
  MPD_SECRETWORD=mr45-j9z
into the file

therefore, I do once these steps. and I can run mpd and mpd -d.


:)





On Thu, Aug 22, 2013 at 9:32 PM, hamideh jabalameli <hamideh.jabalameli@gmail.com> wrote:
Hi dear friends
I'm trying to run my mpi programs. I should run (mpd -d) in my terminal commands. but i got only this:

mpd failed: gethostbyname_ex failed for linux-ut6d.site

{linux-ut6d.site  is my Hostname.Domainname}

Any idea?

please help me immediately...

--
Best Regards

Hamideh Jabalameli

M.Sc Candidate,
School of Electrical and Computer Engineering,
College of Engineering,
Electronici Shahid Beheshti Tehran University



--
Best Regards

Hamideh Jabalameli

M.Sc Candidate,
School of Electrical and Computer Engineering,
College of Engineering,
Electronici Shahid Beheshti Tehran University
h.jabal@Mail.sbu.ac.ir
hamideh.jabalameli@gmail.com