my ($index_tpl, $err_cfg_dir) = (undef, undef);
my $vhost = $main::cfg{'BASE_SERVER_VHOST'};
my $prefix = $main::cfg{'BASE_SERVER_VHOST_PREFIX'};

my $domain0 = $ENV{'HTTP_HOST'};
if $domain0 eq "admin.domain.tld" {
   $err_cfg_dir = "$main::cfg{'GUI_ROOT_DIR'}/default_page";
}
if $domain0 eq "admin.domain2.tld" {
  $err_cfg_dir = "$main::cfg{'GUI_ROOT_DIR'}/default_page2";
}

return $rs if ($rs != 0);