on commands.cfg file
define command {
command_name check_ldaps
command_line $USER1$/check_ldap.pl -H 192.168.0.123 -p 389
}
on your <server.cfg> file-
define service{
use generic-service ; template name, available by default
host_name LDAP ; unique name of the host being defined
service_description LDAP Daemon ; description of the host
check_command check_ldaps
}
But this plugin requires Perl Net::LDAP modules installed. For installation of Net::LDAP perl CPAN module, you read this post