[Samba] Samba trying to connect to a non-existant DC for NTP?
James B. Byrne
byrnejb at harte-lyne.ca
Thu Feb 15 19:30:36 UTC 2024
Thu Feb 15 18:07:50 UTC 2024 Rowland Penny rpenny at samba.org wrote:
>
> Except somehow the 'SRV' went walk about.
>
I deleted the excess SRV RR:
samba-tool dns delete LOCALHOST \
_msdcs.brockley.harte-lyne.ca \
_ldap._tcp.pdc \
SRV \
"SMB4-1.brockley.harte-lyne.ca 389 0 100"
Password for [administrator at BROCKLEY.HARTE-LYNE.CA]:
Record deleted successfully
samba-ldbsearch --cross-ncs --show-binary \
-H /var/db/samba4/private/sam.ldb \
-b 'DC=brockley,DC=harte-lyne,DC=ca' \
-s sub '(&(objectclass=dnsnode)(name=_ldap._tcp.pdc))'
# record 1
dn:
DC=_ldap._tcp.pdc,DC=_msdcs.brockley.harte-lyne.ca,CN=MicrosoftDNS,DC=ForestDnsZones,DC=brockley,DC=harte-lyne,DC=ca
objectClass: top
objectClass: dnsNode
instanceType: 4
whenCreated: 20200626203452.0Z
uSNCreated: 5218
showInAdvancedViewOnly: TRUE
name: _ldap._tcp.pdc
objectGUID: 7ae43ab4-454b-4aae-b411-f151c32a9078
objectCategory:
CN=Dns-Node,CN=Schema,CN=Configuration,DC=brockley,DC=harte-lyne,DC=ca
dc: _ldap._tcp.pdc
dnsRecord: NDR: struct dnsp_DnssrvRpcRecord
wDataLength : 0x0027 (39)
wType : DNS_TYPE_SRV (33)
version : 0x05 (5)
rank : DNS_RANK_ZONE (240)
flags : 0x0000 (0)
dwSerial : 0x0000006e (110)
dwTtlSeconds : 0x00000384 (900)
dwReserved : 0x00000000 (0)
dwTimeStamp : 0x00000000 (0)
data : union dnsRecordData(case 33)
srv: struct dnsp_srv
wPriority : 0x0000 (0)
wWeight : 0x0064 (100)
wPort : 0x0185 (389)
nameTarget : smb4-2.brockley.harte-lyne.ca
whenChanged: 20240215191826.0Z
uSNChanged: 785394
distinguishedName:
DC=_ldap._tcp.pdc,DC=_msdcs.brockley.harte-lyne.ca,CN=MicrosoftDNS,DC=ForestDnsZones,DC=brockley,DC=harte-lyne,DC=ca
# returned 1 records
# 1 entries
# 0 referrals
samba-tool dns query LOCALHOST _msdcs.brockley.harte-lyne.ca _ldap._tcp.pdc
SRV -U administrator
Password for [BROCKLEY\administrator]:
Name=, Records=1, Children=0
SRV: smb4-2.brockley.harte-lyne.ca. (389, 0, 100) (flags=f0, serial=110,
ttl=900)
I also restarted samba_server for good measure.
However, the error messages are still being recorded in /var/log/messages:
Feb 15 14:27:36 smb4-2 samba[37524]: [2024/02/15 14:27:36.902610, 0]
../../source4/librpc/rpc/dcerpc_sock.c:63(continue_socket_connect)
Feb 15 14:27:36 smb4-2 samba[37524]: Failed to connect host 192.168.18.161 on
port 135 - NT_STATUS_UNSUCCESSFUL
Feb 15 14:27:36 smb4-2 samba[37524]: [2024/02/15 14:27:36.902780, 0]
../../source4/librpc/rpc/dcerpc_sock.c:245(continue_ip_open_socket)
Feb 15 14:27:36 smb4-2 samba[37524]: Failed to connect host 192.168.18.161
(aac648b2-aac8-411d-afe0-7cbd5455841c._msdcs.brockley.harte-lyne.ca) on port
135 - NT_STATUS_UNSUCCESSFUL.
What else can I do to get this to stop?
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James B. Byrne mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
Canada L8E 3C3
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