Достук к InterBase

в Delphi for PHP пишу
$host1="122.11.1.10:c:\.....\my.gdb";
$login1="SYSDBA";
$password1="pass";

$this->IBDatabase1->Host=$host1;
$this->IBDatabase1->UserName=$login1;
$this->IBDatabase1->UserPassword=$password1;
$this->IBDatabase1->Connected=true;

Ошибка
Warning: ibase_pconnect() [function.ibase-pconnect]: connection rejected by remote interface

имя и пароль пользователя действительны. к БД MSSQL подсоединяюсь

у чем причина может быть?

You need to edit either /etc/host.equiv or /etc/gds_hosts.equiv to allow
trusted connections. Generally, you just need to add a line with +. For
more information, look at the man page for hosts.equiv. Note that
editing gds_hosts.equiv is quickly documented on page 47 of the
Interbase 2007 Operations Guide.

********************* file contents ****************************/
# This file will allow InterBase to connect to the localhost
localhost
+
/********************* end of contents **************************/

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Truly yours, Sasha.