Finally I found the problem, the conf line contains too much spaces in end, delete the spaces and the problem solved :) Thanks for your time, Nikos. On Mon, May 19, 2014 at 1:48 AM, Nikos Mavrogiannopoulos <nmav at gnutls.org> wrote: > On Mon, 2014-05-19 at 00:27 +0800, Steve wrote: >> No on my 7.4 debian box. > > Check the differences in your configuration, it is certainly not > depending on the system, but on the configuration. > > regards, > Nikos > >