The IP 10.255.0.4 belongs to the Windows 2008 R2 system running AD DC.
I disabled the firewall but still the problem is there :-(


On Fri, May 16, 2014 at 7:14 PM, Sumit Bose <sb...@redhat.com> wrote:

> On Fri, May 16, 2014 at 04:29:33PM +0530, Supratik Goswami wrote:
> > Yes DNS is working fine and is able to return the IP address of the AD
> > server.
> >
> > [root@master samba]# dig SRV _ldap._tcp.ad.idm.example.com
> >
> > ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> SRV _ldap._
> > tcp.ad.idm.example.com
> > ;; global options: +cmd
> >  ;; Got answer:
> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29147
> > ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
> >
> > ;; QUESTION SECTION:
> > ;_ldap._tcp.ad.idm.example.com. IN SRV
> >
> > ;; ANSWER SECTION:
> > _ldap._tcp.ad.idm.example.com. 600 IN SRV 0 100 389
> > master.ad.idm.example.com.
> >
> > ;; ADDITIONAL SECTION:
> > master.ad.idm.example.com. 3600 IN A 10.255.0.4
> >
> > ;; Query time: 1 msec
> > ;; SERVER: 10.255.0.4#53(10.255.0.4)
> > ;; WHEN: Fri May 16 10:46:23 2014
> > ;; MSG SIZE  rcvd: 106
> >
> >
> >
> > In my case AD is the netbios name of the AD domain. Please find the log
> > message from the file log.wb-AD.
> >
> >
>
> ...
>
> > [2014/05/16 10:50:37.542420,  5, pid=3305, effective(0, 0), real(0, 0)]
> > [2014/05/16 10:50:44.451669,  3, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/util_sock.c:585(open_socket_out_send)
> >   Connecting to 10.255.0.4 at port 445
> > [2014/05/16 10:50:44.452793,  3, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/clidgram.c:333(nbt_getdc_send)
> >   No nmbd found
> > [2014/05/16 10:50:44.452930, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/namequery.c:916(name_status_find)
> >   name_status_find: looking up AD#1c at 10.255.0.4
> > [2014/05/16 10:50:44.453044,  5, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/namecache.c:299(namecache_status_fetch)
> >   namecache_status_fetch: no entry for NBT/AD#1C.20.10.255.0.4 found.
> > [2014/05/16 10:50:44.453279, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/util_sock.c:499(open_socket_in)
> >   bind succeeded on port 0
> > [2014/05/16 10:50:44.453449, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/unexpected.c:546(nb_packet_reader_connected)
> >   async_connect failed: No such file or directory
> > [2014/05/16 10:50:44.453564, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/namequery.c:600(nb_trans_got_reader)
> >   nmbd not around
> > [2014/05/16 10:50:45.454766, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:46.456103, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:47.457451, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:48.458773, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:49.460093, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:50.461420, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:51.462723, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:52.464265, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:53.465546, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750470
> > [2014/05/16 10:50:54.455168, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/lib/events.c:216(run_events_poll)
> >   Running timed event "tevent_req_timedout" 0x1750590
> > [2014/05/16 10:50:54.455385, 10, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/namequery.c:962(name_status_find)
> >   name_status_find: name not found
> > [2014/05/16 10:50:54.455497, 10, pid=3305, effective(0, 0), real(0, 0),
> > class=tdb] ../source3/lib/gencache.c:179(gencache_set_data_blob)
> >   Adding cache entry with key = NEG_CONN_CACHE/AD,10.255.0.4 and timeout
> =
> > Fri May 16 10:51:54 2014
> >    (60 seconds ahead)
> > [2014/05/16 10:50:54.455739,  9, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/conncache.c:189(add_failed_connection_entry)
> >   add_failed_connection_entry: added domain AD (10.255.0.4) to failed
> conn
> > cache
>
> > class=tdb] ../source3/lib/gencache.c:246(gencache_del)
> >   Deleting cache entry (key = SAFJOIN/DOMAIN/AD)
> > [2014/05/16 10:50:54.455967, 10, pid=3305, effective(0, 0), real(0, 0),
> > class=tdb] ../source3/lib/gencache.c:246(gencache_del)
> >   Deleting cache entry (key = SAF/DOMAIN/AD)
> > [2014/05/16 10:50:54.456078, 10, pid=3305, effective(0, 0), real(0, 0),
> > class=tdb] ../source3/lib/gencache.c:179(gencache_set_data_blob)
> >   Adding cache entry with key = NEG_CONN_CACHE/ad.idm.example.com
> ,10.255.0.4
> > and timeout = Fri May 16 10:51:54 2014
> >    (60 seconds ahead)
> > [2014/05/16 10:50:54.456236,  9, pid=3305, effective(0, 0), real(0, 0)]
> > ../source3/libsmb/conncache.c:189(add_failed_connection_entry)
> >   add_failed_connection_entry: added domain ad.idm.example.com(10.255.0.4)
> > to failed conn cache
> > [2014/05/16 10:50:54.456330, 10, pid=3305, effective(0, 0), real(0, 0),
> > class=tdb] ../source3/lib/gencache.c:246(gencache_del)
>
> looks like the connection to 10.255.0.4 timed out after 10 seconds. Is
> there a firewall which might drop the packets?
>
> bye,
> Sumit
>



-- 
Warm Regards

Supratik
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