Samba – Cannot run SAMBA (DC) and OpenLDAP, (The port is being used)

I installed samba and made it a simple domain controller, and I intend to set it to make the authentication over OpenLDAP.
The problem is I can NOT run both slapd and samba processes at the same time.

If I ran Samba at first (samba will run and work normally), and then next the slapd, the slapd will not run, it tells me that the port is being used, and I am not able to use it.

slapd starting process outout:

root@linuxserver:/home/mohammed# /etc/init.d/slapd status ●
slapd.service – LSB: OpenLDAP standalone server (Lightweight Directory
Access Protocol) Loaded: loaded (/etc/init.d/slapd) Active:
failed (Result: exit-code) since Wed 2016-02-17 11:31:36 CET; 41s ago
Docs: man:systemd-sysv-generator(8) Process: 10297 ExecStop=/etc/init.d/slapd stop (code=exited, status=0/SUCCESS)
Process: 10697 ExecStart=/etc/init.d/slapd start (code=exited,
status=1/FAILURE)

Feb 17 11:31:36 linuxserver.example.local slapd[10701]: @(#)
$OpenLDAP: slapd (Ubuntu) (Sep 15 2015 21:34:22) $
buildd@lgw01-27:/build/openldap-cOgeXt/openldap-2.4.41+dfsg/debian/build/servers/slapd
Feb 17 11:31:36 linuxserver.example.local slapd[10701]: daemon:
bind(9) failed errno=98 (Address already in use) Feb 17 11:31:36
linuxserver.example.local slapd[10701]: daemon: bind(9) failed
errno=98 (Address already in use) Feb 17 11:31:36
linuxserver.example.local slapd[10701]: slapd stopped. Feb 17 11:31:36
linuxserver.example.local slapd[10701]: connections_destroy: nothing
to destroy. Feb 17 11:31:36 linuxserver.example.local systemd[1]:
slapd.service: Control process exited, code=exited status=1 Feb 17
11:31:36 linuxserver.example.local systemd[1]: Failed to start LSB:
OpenLDAP standalone server (Lightweight Directory Access Protocol).
Feb 17 11:31:36 linuxserver.example.local systemd[1]: slapd.service:
Unit entered failed state. Feb 17 11:31:36 linuxserver.example.local
systemd[1]: slapd.service: Failed with result 'exit-code'. Feb 17
11:31:36 linuxserver.example.local slapd[10697]: …fail!

and if I did the opposite, so if I ran slapd at first (it will run correctly), and then next samba, samba will not work because it tells that there is somthing going wrong with the port, and I cannot use it.

samba starting process outout:

root@linuxserver:/home/mohammed# /etc/init.d/samba status ●
samba-ad-dc.service – LSB: start Samba daemons for the AD DC
Loaded: loaded (/etc/init.d/samba-ad-dc) Active: active (running)
since Wed 2016-02-17 11:38:03 CET; 3s ago
Docs: man:systemd-sysv-generator(8) Process: 10774 ExecStop=/etc/init.d/samba-ad-dc stop (code=exited, status=0/SUCCESS)
Process: 11026 ExecStart=/etc/init.d/samba-ad-dc start (code=exited,
status=0/SUCCESS) CGroup: /system.slice/samba-ad-dc.service
├─11055 /usr/sbin/samba -D
├─11058 /usr/sbin/smbd -D –option=server role check:inhibit=yes –foreground
└─11071 /usr/sbin/smbd -D –option=server role check:inhibit=yes –foreground

Feb 17 11:38:05 linuxserver.example.local samba[11060]: [2016/02/17
11:38:05.303292, 0]
../source4/smbd/service_stream.c:346(stream_setup_socket) Feb 17
11:38:05 linuxserver.example.local samba[11060]: Failed to listen on
::1:389 – NT_STATUS_ADDRESS_ALREADY_ASSOCIATED Feb 17 11:38:05
linuxserver.example.local samba[11060]: [2016/02/17 11:38:05.303771,
0] ../source4/ldap_server/ldap_server.c:821(add_socket) Feb 17
11:38:05 linuxserver.example.local samba[11060]: ldapsrv failed to
bind to ::1:389 – NT_STATUS_ADDRESS_ALREADY_ASSOCIATED Feb 17 11:38:05
linuxserver.example.local samba[11060]: [2016/02/17 11:38:05.304082,
0] ../source4/smbd/service_task.c:35(task_server_terminate) Feb 17
11:38:05 linuxserver.example.local samba[11060]:
task_server_terminate: [Failed to startup ldap server task] Feb 17
11:38:05 linuxserver.example.local samba[11037]: STATUS=daemon
'samba' finished starting up and ready to serve
connectionssamba_terminate: Failed t…rver task Feb 17 11:38:06
linuxserver.example.local smbd[11058]: [2016/02/17 11:38:06.082490,
0] ../lib/util/become_daemon.c:136(daemon_ready) Feb 17 11:38:06
linuxserver.example.local smbd[11072]: STATUS=daemon 'smbd' finished
starting up and ready to serve connectionsUnable to connect to CUPS
s…escriptor Feb 17 11:38:06 linuxserver.example.local smbd[11071]:
STATUS=daemon 'smbd' finished starting up and ready to serve
connectionsfailed to retrieve printer …UCCESSFUL Hint: Some lines
were ellipsized, use -l to show in full.

And here is my smb.conf:

[global]
        workgroup = EXAMPLE
        realm = EXAMPLE.LOCAL
        netbios name = LINUXSERVER
        server role = active directory domain controller
        dns forwarder = 8.8.8.8
        idmap_ldb:use rfc2307 = yes

[netlogon]
        path = /var/lib/samba/sysvol/example.local/scripts
        read only = No

[sysvol]
        path = /var/lib/samba/sysvol
        read only = No

Could anybody help me to solve that please? Thanks in advance.