[Samba] Impossible to join my samba server to active directory domain

[David N'DAKPAZE]

Hello,
I've configure a samba server but when I do net join I have error message.
here is the result of net join -d4 -U Administrateur:

[2009/04/07 17:29:02,  3] param/loadparm.c:lp_load_ex(8778)
  lp_load_ex: refreshing parameters
[2009/04/07 17:29:02,  3] param/loadparm.c:init_globals(4621)
  Initialising global parameters
[2009/04/07 17:29:02,  3] param/params.c:pm_process(569)
  params.c:pm_process() - Processing configuration file
"/etc/samba/smb.conf"
[2009/04/07 17:29:02,  3] param/loadparm.c:do_section(7441)
  Processing section "[global]"
  doing parameter workgroup = ROOV
  doing parameter server string = samba server
  doing parameter dns proxy = no
  doing parameter log file = /var/log/samba/log.%m
  doing parameter max log size = 1000
  doing parameter syslog = 0
  doing parameter panic action = /usr/share/samba/panic-action %d
  doing parameter security = ads
  doing parameter encrypt passwords = true
  doing parameter obey pam restrictions = yes
  doing parameter unix password sync = yes
  doing parameter pam password change = yes
  doing parameter winbind separator = /
  doing parameter idmap uid = 10000-20000
  doing parameter idmap gid = 10000-20000
  doing parameter template shell = /bin/bash
  doing parameter password server = abc-controler.roov.cg
  doing parameter winbind enum groups = yes
  doing parameter winbind enum users = yes
  doing parameter client use spnego = yes
  doing parameter winbind use default domain = yes
[2009/04/07 17:29:02,  4] param/loadparm.c:lp_load_ex(8822)
  pm_process() returned Yes
[2009/04/07 17:29:02,  2] lib/interface.c:add_interface(337)
  added interface eth0 ip=fe80::20d:60ff:fe1b:cd46%eth0
bcast=fe80::ffff:ffff:ffff:ffff%eth0 netmask=ffff:ffff:ffff:ffff::
[2009/04/07 17:29:02,  2] lib/interface.c:add_interface(337)
  added interface eth0 ip=172.30.10.71 bcast=172.30.10.95
netmask=255.255.255.224
[2009/04/07 17:29:02,  3] libsmb/namequery.c:get_dc_list(1909)
  get_dc_list: preferred server list: ", abc-controler.roov.cg"
[2009/04/07 17:29:02,  4] libsmb/namequery.c:get_dc_list(2042)
  get_dc_list: returning 1 ip addresses in an ordered list
[2009/04/07 17:29:02,  4] libsmb/namequery.c:get_dc_list(2043)
  get_dc_list: 172.30.10.66:389
[2009/04/07 17:29:02,  1] libads/cldap.c:recv_cldap_netlogon(184)
  Failed to parse cldap reply
[2009/04/07 17:29:02,  3] libads/ldap.c:ads_try_connect(203)
  ads_try_connect: CLDAP request 172.30.10.66 failed.
[2009/04/07 17:29:02,  3] libads/dns.c:dns_send_req(343)
  ads_dns_lookup_srv: Failed to resolve _ldap._tcp.pdc._msdcs.ROOV (Success)
[2009/04/07 17:29:02,  3] libads/dns.c:ads_dns_lookup_srv(413)
  ads_dns_lookup_srv: Failed to send DNS query (NT_STATUS_UNSUCCESSFUL)
[2009/04/07 17:29:02,  3] libsmb/namequery.c:resolve_lmhosts(1162)
  resolve_lmhosts: Attempting lmhosts lookup for name ROOV<0x1b>
[2009/04/07 17:29:02,  4] libsmb/namequery.c:startlmhosts(776)
  startlmhosts: Can't open lmhosts file /etc/samba/lmhosts. Error was No
such file or directory
[2009/04/07 17:29:02,  3] libsmb/namequery.c:resolve_wins(1026)
  resolve_wins: Attempting wins lookup for name ROOV<0x1b>
[2009/04/07 17:29:02,  3] libsmb/namequery.c:resolve_wins(1030)
  resolve_wins: WINS server resolution selected and no WINS servers listed.
[2009/04/07 17:29:02,  3] libsmb/namequery.c:name_resolve_bcast(953)
  name_resolve_bcast: Attempting broadcast lookup for name ROOV<0x1b>
[2009/04/07 17:29:03,  1] utils/net.c:net_find_server(461)
  Unable to resolve PDC server address
Unable to find a suitable server
[2009/04/07 17:29:03,  1] utils/net_rpc.c:run_rpc_command(127)
  failed to make ipc connection: NT_STATUS_UNSUCCESSFUL
[2009/04/07 17:29:03,  3] libads/dns.c:dns_send_req(343)
  ads_dns_lookup_srv: Failed to resolve_ldap._tcp.pdc._msdcs.ROOV (Success)
[2009/04/07 17:29:03,  3] libads/dns.c:ads_dns_lookup_srv(413)
  ads_dns_lookup_srv: Failed to send DNS query (NT_STATUS_UNSUCCESSFUL)
[2009/04/07 17:29:03,  3] libsmb/namequery.c:resolve_lmhosts(1162)
  resolve_lmhosts: Attempting lmhosts lookup for name ROOV<0x1b>
[2009/04/07 17:29:03,  4] libsmb/namequery.c:startlmhosts(776)
  startlmhosts: Can't open lmhosts file /etc/samba/lmhosts. Error was No
such file or directory
[2009/04/07 17:29:03,  3] libsmb/namequery.c:resolve_wins(1026)
  resolve_wins: Attempting wins lookup for name ROOV<0x1b>
[2009/04/07 17:29:03,  3] libsmb/namequery.c:resolve_wins(1030)
  resolve_wins: WINS server resolution selected and no WINS servers listed.
[2009/04/07 17:29:03,  3] libsmb/namequery.c:name_resolve_bcast(953)
  name_resolve_bcast: Attempting broadcast lookup for name ROOV<0x1b>
[2009/04/07 17:29:04,  1] utils/net.c:net_find_server(461)
  Unable to resolve PDC server address
Unable to find a suitable server
[2009/04/07 17:29:04,  2] utils/net.c:main(1172)
  return code = 1

I need your help please