[Samba] Samba + BIND9 DLZ. DNS dosen't resolve FQDN, only short hostname
Rowland Penny
rpenny at samba.org
Sat Feb 9 09:24:20 UTC 2019
On Sat, 9 Feb 2019 09:12:28 +0100
Peter Tuharsky via samba <samba at lists.samba.org> wrote:
> Thank You Rowland. I did it like You say, killed avahi, added the
> record without domain suffix, but nothing changed, and the record
> seems no different compared to other records added with the suffix
> some time before.
>
> My Samba DNS record looks like this (and I see nothing special in
> there):
>
> Name=, Records=3, Children=0
> SOA: serial=39, refresh=900, retry=600, expire=86400,
> minttl=3600, ns=blacktux.interbronz.local.,
> email=hostmaster.interbronz.local. (flags=600000f0, serial=39,
> ttl=3600) NS: blacktux.interbronz.local. (flags=600000f0, serial=1,
> ttl=900) A: 10.20.1.1 (flags=600000f0, serial=3, ttl=900)
> Name=_msdcs, Records=0, Children=0
> Name=_sites, Records=0, Children=1
> Name=_tcp, Records=0, Children=4
> Name=_udp, Records=0, Children=2
> Name=asus, Records=1, Children=0
> A: 10.20.4.69 (flags=f0, serial=27, ttl=900)
> Name=blacktux, Records=1, Children=0
> A: 10.20.1.1 (flags=f0, serial=2, ttl=900)
> Name=boss, Records=1, Children=0
> A: 10.20.3.78 (flags=f0, serial=39, ttl=900)
> Name=DomainDnsZones, Records=0, Children=2
> Name=ForestDnsZones, Records=0, Children=2
> Name=intelhd, Records=1, Children=0
> A: 10.20.1.82 (flags=f0, serial=20, ttl=900)
> Name=w7-virt, Records=1, Children=0
> A: 10.10.10.102 (flags=f0, serial=21, ttl=900)
>
Hmm, mine look different:
If I run (on a DC):
samba-tool dns query 127.0.0.1 samdom.example.com @ SOA
I get:
Name=, Records=1, Children=0
SOA: serial=3658, refresh=900, retry=600, expire=86400, minttl=3600, ns=dc4.samdom.example.com., email=hostmaster.samdom.example.com. (flags=600000f0, serial=3657, ttl=3600)
Name=_sites, Records=0, Children=1
Name=_tcp, Records=0, Children=5
Name=_udp, Records=0, Children=2
Name=EAP-WIN7, Records=0, Children=0
Name=DomainDnsZones, Records=0, Children=2
Name=ForestDnsZones, Records=0, Children=2
Name=EAPDEV-PC, Records=0, Children=0
Name=DC4, Records=0, Children=0
Name=.................
...........
and so on
The '_msdcs' record isn't there.
There are no 'A' records.
If I run (again on a DC):
ldbsearch --cross-ncs --show-binary -H '/var/lib/samba/private/sam.ldb'
-b
'DC=samdom.example.com,CN=MicrosoftDNS,DC=DomainDnsZones,DC=samdom,DC=example,DC=com'
-s sub '(&(objectClass=dnsNode)(DC=@))'
NOTE: the above should all be on one line.
I get:
# record 1
dn: DC=@,DC=samdom.example.com,CN=MicrosoftDNS,DC=DomainDnsZones,DC=samdom,DC=example,DC=com
objectClass: top
objectClass: dnsNode
instanceType: 4
whenCreated: 20151106115624.0Z
uSNCreated: 4060
showInAdvancedViewOnly: TRUE
name: @
objectGUID: 7ad014c4-c1e9-4cb4-9f0d-96d0272af23d
objectCategory: CN=Dns-Node,CN=Schema,CN=Configuration,DC=samdom,DC=example,DC=com
dc: @
whenChanged: 20190209090653.0Z
dnsRecord: NDR: struct dnsp_DnssrvRpcRecord
wDataLength : 0x004f (79)
wType : DNS_TYPE_SOA (6)
version : 0x05 (5)
rank : DNS_RANK_ZONE (240)
flags : 0x0000 (0)
dwSerial : 0x00000e4d (3661)
dwTtlSeconds : 0x00000e10 (3600)
dwReserved : 0x00000000 (0)
dwTimeStamp : 0x0037ec99 (3665049)
data : union dnsRecordData(case 6)
soa: struct dnsp_soa
serial : 0x00000e4e (3662)
refresh : 0x00000384 (900)
retry : 0x00000258 (600)
expire : 0x00015180 (86400)
minimum : 0x00000e10 (3600)
mname : dc4.samdom.example.com
rname : hostmaster.samdom.example.com
dnsRecord: NDR: struct dnsp_DnssrvRpcRecord
wDataLength : 0x001a (26)
wType : DNS_TYPE_NS (2)
version : 0x05 (5)
rank : DNS_RANK_ZONE (240)
flags : 0x0000 (0)
dwSerial : 0x00000e4d (3661)
dwTtlSeconds : 0x00000384 (900)
dwReserved : 0x00000000 (0)
dwTimeStamp : 0x0037a459 (3646553)
data : union dnsRecordData(case 2)
ns : dc3.samdom.example.com
dnsRecord: NDR: struct dnsp_DnssrvRpcRecord
wDataLength : 0x001a (26)
wType : DNS_TYPE_NS (2)
version : 0x05 (5)
rank : DNS_RANK_ZONE (240)
flags : 0x0000 (0)
dwSerial : 0x00000e4d (3661)
dwTtlSeconds : 0x00000384 (900)
dwReserved : 0x00000000 (0)
dwTimeStamp : 0x0037ceba (3657402)
data : union dnsRecordData(case 2)
ns : dc4.samdom.example.com
dnsRecord: NDR: struct dnsp_DnssrvRpcRecord
wDataLength : 0x0004 (4)
wType : DNS_TYPE_A (1)
version : 0x05 (5)
rank : DNS_RANK_ZONE (240)
flags : 0x0000 (0)
dwSerial : 0x00000e4d (3661)
dwTtlSeconds : 0x00000384 (900)
dwReserved : 0x00000000 (0)
dwTimeStamp : 0x0037a459 (3646553)
data : union dnsRecordData(case 1)
ipv4 : 192.168.0.7
dnsRecord: NDR: struct dnsp_DnssrvRpcRecord
wDataLength : 0x0004 (4)
wType : DNS_TYPE_A (1)
version : 0x05 (5)
rank : DNS_RANK_ZONE (240)
flags : 0x0000 (0)
dwSerial : 0x00000e4d (3661)
dwTtlSeconds : 0x00000384 (900)
dwReserved : 0x00000000 (0)
dwTimeStamp : 0x0037ceba (3657402)
data : union dnsRecordData(case 1)
ipv4 : 192.168.0.6
uSNChanged: 402651
distinguishedName: DC=@,DC=samdom.example.com,CN=MicrosoftDNS,DC=DomainDnsZones,DC=samdom,DC=example,DC=com
# returned 1 records
# 1 entries
# 0 referrals
Rowland
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