Norbert Hanke
2016-Jul-17 23:02 UTC
[Samba] samba 4.4.5 DC with bind9: DNS update failing with NOTAUTH
Hello,
I'm trying to join a samba 4 DC to an already existing samba 4 DC, both
with BIND9_DLZ. Samba is at version 4.4.5, bind is version 9.10.4-P1,
all brand new.
The existing DC runs fine, but the added DC refuses to update its local
bind database: every attempt to update the local DNS results in "update
failed: NOTAUTH". AD replication works perfectly.
Both systems are set up identically except for the provisioning/joining
command. On the first I did
samba-tool domain provision --use-rfc2307 --domain=$domain
--server-role=dc --dns-backend=BIND9_DLZ \
--realm=$realm --adminpass=Wonttell
and on the second I do
samba-tool domain join $domain DC -Uadministrator --realm=$realm
--dns-backend=BIND9_DLZ
Versions are the same, bind config is the same, I tried follow every
rule I could find.
# samba_dnsupdate --verbose -d 9
INFO: Current debug levels:
all: 9
(... more such levels ...)
lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf
Processing section "[global]"
Processing section "[netlogon]"
Processing section "[sysvol]"
pm_process() returned Yes
added interface eth0 ip=192.168.1.9 bcast=192.168.1.255
netmask=255.255.255.0
IPs: ['192.168.1.9']
Module 'tombstone_reanimate' is disabled. Skip
registration.lpcfg_servicenumber: couldn't find ldb
schema_fsmo_init: we are master[no] updates allowed[no]
schema_fsmo_init: we are master[no] updates allowed[no]
Looking for DNS entry A dc2.ad.domain.ch 192.168.1.9 as dc2.ad.domain.ch.
Looking for DNS entry A ad.domain.ch 192.168.1.9 as ad.domain.ch.
Failed to find matching DNS entry A ad.domain.ch 192.168.1.9
need update: A ad.domain.ch 192.168.1.9
(... many more such Looking...need update blocks)
24 DNS updates and 0 DNS deletes needed
ldb_wrap open of secrets.ldb
Received smb_krb5 packet of length 298
Received smb_krb5 packet of length 1311
update(nsupdate): A ad.domain.tld 192.168.1.9
Calling nsupdate for A ad.domain.tld 192.168.1.9 (add)
Outgoing update query:
;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0
;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0
;; UPDATE SECTION:
ad.domain.tld. 900 IN A 192.168.1.9
update failed: NOTAUTH
Failed nsupdate: 2
(... many more such failed updates ...)
Failed update of 24 entries
# 22:37:30 root at dc2:/root/
In /var/log/syslog there are these equivalent 24 error message every 10
minutes:
Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.742592, 0]
../lib/util/util_runcmd.c:328(samba_runcmd_io_handler)
Jul 17 22:52:06 dc2 samba[3960]: /usr/local/samba/sbin/samba_dnsupdate:
update failed: NOTAUTH
and the last of the 24 entries is always followed by
Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.866877, 0]
../source4/dsdb/dns/dns_update.c:295(dnsupdate_nameupdate_done)
Jul 17 22:52:06 dc2 samba[3960]: ../source4/dsdb/dns/dns_update.c:295:
Failed DNS update - NT_STATUS_TOO_MANY_OPENED_FILES
smb.conf is minimalistic:
# Global parameters
[global]
netbios name = DC2
realm = AD.DOMAIN.TLD
server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc,
drepl, winbindd, ntp_signd, kcc, dnsupdate
workgroup = DOMAIN
server role = active directory domain controller
[netlogon]
path = /usr/local/samba/var/locks/sysvol/ad.domain.tld/scripts
read only = No
[sysvol]
path = /usr/local/samba/var/locks/sysvol
read only = No
Maybe somebody has an idea what I did wrong?
Achim Gottinger
2016-Jul-17 23:52 UTC
[Samba] samba 4.4.5 DC with bind9: DNS update failing with NOTAUTH
Am 18.07.2016 um 01:02 schrieb Norbert Hanke:> Hello, > > I'm trying to join a samba 4 DC to an already existing samba 4 DC, > both with BIND9_DLZ. Samba is at version 4.4.5, bind is version > 9.10.4-P1, all brand new. > > The existing DC runs fine, but the added DC refuses to update its > local bind database: every attempt to update the local DNS results in > "update failed: NOTAUTH". AD replication works perfectly. > > Both systems are set up identically except for the > provisioning/joining command. On the first I did > samba-tool domain provision --use-rfc2307 --domain=$domain > --server-role=dc --dns-backend=BIND9_DLZ \ > --realm=$realm --adminpass=Wonttell > and on the second I do > samba-tool domain join $domain DC -Uadministrator --realm=$realm > --dns-backend=BIND9_DLZ > > Versions are the same, bind config is the same, I tried follow every > rule I could find. > > # samba_dnsupdate --verbose -d 9 > INFO: Current debug levels: > all: 9 > (... more such levels ...) > lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf > Processing section "[global]" > Processing section "[netlogon]" > Processing section "[sysvol]" > pm_process() returned Yes > added interface eth0 ip=192.168.1.9 bcast=192.168.1.255 > netmask=255.255.255.0 > IPs: ['192.168.1.9'] > Module 'tombstone_reanimate' is disabled. Skip > registration.lpcfg_servicenumber: couldn't find ldb > schema_fsmo_init: we are master[no] updates allowed[no] > schema_fsmo_init: we are master[no] updates allowed[no] > Looking for DNS entry A dc2.ad.domain.ch 192.168.1.9 as dc2.ad.domain.ch. > Looking for DNS entry A ad.domain.ch 192.168.1.9 as ad.domain.ch. > Failed to find matching DNS entry A ad.domain.ch 192.168.1.9 > need update: A ad.domain.ch 192.168.1.9 > (... many more such Looking...need update blocks) > 24 DNS updates and 0 DNS deletes needed > ldb_wrap open of secrets.ldb > Received smb_krb5 packet of length 298 > Received smb_krb5 packet of length 1311 > update(nsupdate): A ad.domain.tld 192.168.1.9 > Calling nsupdate for A ad.domain.tld 192.168.1.9 (add) > Outgoing update query: > ;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0 > ;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0 > ;; UPDATE SECTION: > ad.domain.tld. 900 IN A 192.168.1.9 > > update failed: NOTAUTH > Failed nsupdate: 2 > (... many more such failed updates ...) > Failed update of 24 entries > # 22:37:30 root at dc2:/root/ > > > In /var/log/syslog there are these equivalent 24 error message every > 10 minutes: > Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.742592, 0] > ../lib/util/util_runcmd.c:328(samba_runcmd_io_handler) > Jul 17 22:52:06 dc2 samba[3960]: > /usr/local/samba/sbin/samba_dnsupdate: update failed: NOTAUTH > and the last of the 24 entries is always followed by > Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.866877, 0] > ../source4/dsdb/dns/dns_update.c:295(dnsupdate_nameupdate_done) > Jul 17 22:52:06 dc2 samba[3960]: ../source4/dsdb/dns/dns_update.c:295: > Failed DNS update - NT_STATUS_TOO_MANY_OPENED_FILES > > smb.conf is minimalistic: > > # Global parameters > [global] > netbios name = DC2 > realm = AD.DOMAIN.TLD > server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, > drepl, winbindd, ntp_signd, kcc, dnsupdate > workgroup = DOMAIN > server role = active directory domain controller > > [netlogon] > path = /usr/local/samba/var/locks/sysvol/ad.domain.tld/scripts > read only = No > > [sysvol] > path = /usr/local/samba/var/locks/sysvol > read only = No > > Maybe somebody has an idea what I did wrong? > > >resolv.conf on dc2 should point to dc1 during join. Is that the case? Does kinit work on dc2?
Norbert Hanke
2016-Jul-18 09:45 UTC
[Samba] samba 4.4.5 DC with bind9: DNS update failing with NOTAUTH
On 18.07.2016 01:52, Achim Gottinger wrote:> > > Am 18.07.2016 um 01:02 schrieb Norbert Hanke: >> Hello, >> >> I'm trying to join a samba 4 DC to an already existing samba 4 DC, >> both with BIND9_DLZ. Samba is at version 4.4.5, bind is version >> 9.10.4-P1, all brand new. >> >> The existing DC runs fine, but the added DC refuses to update its >> local bind database: every attempt to update the local DNS results in >> "update failed: NOTAUTH". AD replication works perfectly. >> >> Both systems are set up identically except for the >> provisioning/joining command. On the first I did >> samba-tool domain provision --use-rfc2307 --domain=$domain >> --server-role=dc --dns-backend=BIND9_DLZ \ >> --realm=$realm --adminpass=Wonttell >> and on the second I do >> samba-tool domain join $domain DC -Uadministrator --realm=$realm >> --dns-backend=BIND9_DLZ >> >> Versions are the same, bind config is the same, I tried follow every >> rule I could find. >> >> # samba_dnsupdate --verbose -d 9 >> INFO: Current debug levels: >> all: 9 >> (... more such levels ...) >> lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf >> Processing section "[global]" >> Processing section "[netlogon]" >> Processing section "[sysvol]" >> pm_process() returned Yes >> added interface eth0 ip=192.168.1.9 bcast=192.168.1.255 >> netmask=255.255.255.0 >> IPs: ['192.168.1.9'] >> Module 'tombstone_reanimate' is disabled. Skip >> registration.lpcfg_servicenumber: couldn't find ldb >> schema_fsmo_init: we are master[no] updates allowed[no] >> schema_fsmo_init: we are master[no] updates allowed[no] >> Looking for DNS entry A dc2.ad.domain.ch 192.168.1.9 as >> dc2.ad.domain.ch. >> Looking for DNS entry A ad.domain.ch 192.168.1.9 as ad.domain.ch. >> Failed to find matching DNS entry A ad.domain.ch 192.168.1.9 >> need update: A ad.domain.ch 192.168.1.9 >> (... many more such Looking...need update blocks) >> 24 DNS updates and 0 DNS deletes needed >> ldb_wrap open of secrets.ldb >> Received smb_krb5 packet of length 298 >> Received smb_krb5 packet of length 1311 >> update(nsupdate): A ad.domain.tld 192.168.1.9 >> Calling nsupdate for A ad.domain.tld 192.168.1.9 (add) >> Outgoing update query: >> ;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0 >> ;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0 >> ;; UPDATE SECTION: >> ad.domain.tld. 900 IN A 192.168.1.9 >> >> update failed: NOTAUTH >> Failed nsupdate: 2 >> (... many more such failed updates ...) >> Failed update of 24 entries >> # 22:37:30 root at dc2:/root/ >> >> >> In /var/log/syslog there are these equivalent 24 error message every >> 10 minutes: >> Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.742592, 0] >> ../lib/util/util_runcmd.c:328(samba_runcmd_io_handler) >> Jul 17 22:52:06 dc2 samba[3960]: >> /usr/local/samba/sbin/samba_dnsupdate: update failed: NOTAUTH >> and the last of the 24 entries is always followed by >> Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.866877, 0] >> ../source4/dsdb/dns/dns_update.c:295(dnsupdate_nameupdate_done) >> Jul 17 22:52:06 dc2 samba[3960]: >> ../source4/dsdb/dns/dns_update.c:295: Failed DNS update - >> NT_STATUS_TOO_MANY_OPENED_FILES >> >> smb.conf is minimalistic: >> >> # Global parameters >> [global] >> netbios name = DC2 >> realm = AD.DOMAIN.TLD >> server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, >> drepl, winbindd, ntp_signd, kcc, dnsupdate >> workgroup = DOMAIN >> server role = active directory domain controller >> >> [netlogon] >> path = /usr/local/samba/var/locks/sysvol/ad.domain.tld/scripts >> read only = No >> >> [sysvol] >> path = /usr/local/samba/var/locks/sysvol >> read only = No >> >> Maybe somebody has an idea what I did wrong? >> >> >> > resolv.conf on dc2 should point to dc1 during join. Is that the case? > Does kinit work on dc2? > >Yes, I did cat <<EOF >/etc/resolv.conf domain $domain nameserver $otherip nameserver $ip EOF ($ip is the local system, $otherip is the existing DC) resulting in # cat /etc/resolv.conf domain ad.domain.ch nameserver 192.168.1.8 nameserver 192.168.1.9 Before joining I did klist -e | grep administrator@$realm || kinit administrator and looking at it right now half a day later I get # klist -e Ticket cache: FILE:/tmp/krb5cc_0 Default principal: administrator at AD.DOMAIN.CH Valid starting Expires Service principal 17/07/16 21:56:59 18/07/16 07:56:59 krbtgt/AD.DOMAIN.CH at AD.DOMAIN.CH renew until 18/07/16 21:56:55, Etype (skey, tkt): aes256-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96 So it is expired right now, another kinit gets me a new tgt: # kinit -R kinit: Ticket expired while renewing credentials # kinit Password for administrator at AD.DOMAIN.CH: Warning: Your password will expire in 32 days on Sat 20 Aug 2016 08:27:10 UTC # klist -e Ticket cache: FILE:/tmp/krb5cc_0 Default principal: administrator at AD.DOMAIN.CH Valid starting Expires Service principal 18/07/16 09:35:01 18/07/16 19:35:01 krbtgt/AD.DOMAIN.CH at AD.DOMAIN.CH renew until 19/07/16 09:34:58, Etype (skey, tkt): aes256-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96 samba_dnsupdate still fails.
Tim
2016-Jul-18 17:15 UTC
[Samba] samba 4.4.5 DC with bind9: DNS update failing with NOTAUTH
Hi Norbert, I never used Bind as samba dns backend. But this sounds like a permission problem so that your samba process isn't allowed to update Bind. Possibly you should take a look at the permissions. Regards Tim Am 18. Juli 2016 01:02:32 MESZ, schrieb Norbert Hanke <norbert.hanke at gmx.ch>:>Hello, > >I'm trying to join a samba 4 DC to an already existing samba 4 DC, both > >with BIND9_DLZ. Samba is at version 4.4.5, bind is version 9.10.4-P1, >all brand new. > >The existing DC runs fine, but the added DC refuses to update its local > >bind database: every attempt to update the local DNS results in "update > >failed: NOTAUTH". AD replication works perfectly. > >Both systems are set up identically except for the provisioning/joining > >command. On the first I did >samba-tool domain provision --use-rfc2307 --domain=$domain >--server-role=dc --dns-backend=BIND9_DLZ \ > --realm=$realm --adminpass=Wonttell >and on the second I do >samba-tool domain join $domain DC -Uadministrator --realm=$realm >--dns-backend=BIND9_DLZ > >Versions are the same, bind config is the same, I tried follow every >rule I could find. > ># samba_dnsupdate --verbose -d 9 >INFO: Current debug levels: > all: 9 >(... more such levels ...) >lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf >Processing section "[global]" >Processing section "[netlogon]" >Processing section "[sysvol]" >pm_process() returned Yes >added interface eth0 ip=192.168.1.9 bcast=192.168.1.255 >netmask=255.255.255.0 >IPs: ['192.168.1.9'] >Module 'tombstone_reanimate' is disabled. Skip >registration.lpcfg_servicenumber: couldn't find ldb >schema_fsmo_init: we are master[no] updates allowed[no] >schema_fsmo_init: we are master[no] updates allowed[no] >Looking for DNS entry A dc2.ad.domain.ch 192.168.1.9 as >dc2.ad.domain.ch. >Looking for DNS entry A ad.domain.ch 192.168.1.9 as ad.domain.ch. >Failed to find matching DNS entry A ad.domain.ch 192.168.1.9 >need update: A ad.domain.ch 192.168.1.9 >(... many more such Looking...need update blocks) >24 DNS updates and 0 DNS deletes needed >ldb_wrap open of secrets.ldb >Received smb_krb5 packet of length 298 >Received smb_krb5 packet of length 1311 >update(nsupdate): A ad.domain.tld 192.168.1.9 >Calling nsupdate for A ad.domain.tld 192.168.1.9 (add) >Outgoing update query: >;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0 >;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0 >;; UPDATE SECTION: >ad.domain.tld. 900 IN A 192.168.1.9 > >update failed: NOTAUTH >Failed nsupdate: 2 >(... many more such failed updates ...) >Failed update of 24 entries ># 22:37:30 root at dc2:/root/ > > >In /var/log/syslog there are these equivalent 24 error message every 10 > >minutes: >Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.742592, 0] >../lib/util/util_runcmd.c:328(samba_runcmd_io_handler) >Jul 17 22:52:06 dc2 samba[3960]: /usr/local/samba/sbin/samba_dnsupdate: > >update failed: NOTAUTH >and the last of the 24 entries is always followed by >Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.866877, 0] >../source4/dsdb/dns/dns_update.c:295(dnsupdate_nameupdate_done) >Jul 17 22:52:06 dc2 samba[3960]: ../source4/dsdb/dns/dns_update.c:295: >Failed DNS update - NT_STATUS_TOO_MANY_OPENED_FILES > >smb.conf is minimalistic: > ># Global parameters >[global] > netbios name = DC2 > realm = AD.DOMAIN.TLD > server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, >drepl, winbindd, ntp_signd, kcc, dnsupdate > workgroup = DOMAIN > server role = active directory domain controller > >[netlogon] > path = /usr/local/samba/var/locks/sysvol/ad.domain.tld/scripts > read only = No > >[sysvol] > path = /usr/local/samba/var/locks/sysvol > read only = No > >Maybe somebody has an idea what I did wrong?
Rowland penny
2016-Jul-18 18:10 UTC
[Samba] samba 4.4.5 DC with bind9: DNS update failing with NOTAUTH
On 18/07/16 00:02, Norbert Hanke wrote:> Hello, > > I'm trying to join a samba 4 DC to an already existing samba 4 DC, > both with BIND9_DLZ. Samba is at version 4.4.5, bind is version > 9.10.4-P1, all brand new. > > The existing DC runs fine, but the added DC refuses to update its > local bind database: every attempt to update the local DNS results in > "update failed: NOTAUTH". AD replication works perfectly. > > Both systems are set up identically except for the > provisioning/joining command. On the first I did > samba-tool domain provision --use-rfc2307 --domain=$domain > --server-role=dc --dns-backend=BIND9_DLZ \ > --realm=$realm --adminpass=Wonttell > and on the second I do > samba-tool domain join $domain DC -Uadministrator --realm=$realm > --dns-backend=BIND9_DLZ > > Versions are the same, bind config is the same, I tried follow every > rule I could find. > > # samba_dnsupdate --verbose -d 9 > INFO: Current debug levels: > all: 9 > (... more such levels ...) > lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf > Processing section "[global]" > Processing section "[netlogon]" > Processing section "[sysvol]" > pm_process() returned Yes > added interface eth0 ip=192.168.1.9 bcast=192.168.1.255 > netmask=255.255.255.0 > IPs: ['192.168.1.9'] > Module 'tombstone_reanimate' is disabled. Skip > registration.lpcfg_servicenumber: couldn't find ldb > schema_fsmo_init: we are master[no] updates allowed[no] > schema_fsmo_init: we are master[no] updates allowed[no] > Looking for DNS entry A dc2.ad.domain.ch 192.168.1.9 as dc2.ad.domain.ch. > Looking for DNS entry A ad.domain.ch 192.168.1.9 as ad.domain.ch. > Failed to find matching DNS entry A ad.domain.ch 192.168.1.9 > need update: A ad.domain.ch 192.168.1.9 > (... many more such Looking...need update blocks) > 24 DNS updates and 0 DNS deletes needed > ldb_wrap open of secrets.ldb > Received smb_krb5 packet of length 298 > Received smb_krb5 packet of length 1311 > update(nsupdate): A ad.domain.tld 192.168.1.9 > Calling nsupdate for A ad.domain.tld 192.168.1.9 (add) > Outgoing update query: > ;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0 > ;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0 > ;; UPDATE SECTION: > ad.domain.tld. 900 IN A 192.168.1.9 > > update failed: NOTAUTH > Failed nsupdate: 2 > (... many more such failed updates ...) > Failed update of 24 entries > # 22:37:30 root at dc2:/root/ > > > In /var/log/syslog there are these equivalent 24 error message every > 10 minutes: > Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.742592, 0] > ../lib/util/util_runcmd.c:328(samba_runcmd_io_handler) > Jul 17 22:52:06 dc2 samba[3960]: > /usr/local/samba/sbin/samba_dnsupdate: update failed: NOTAUTH > and the last of the 24 entries is always followed by > Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.866877, 0] > ../source4/dsdb/dns/dns_update.c:295(dnsupdate_nameupdate_done) > Jul 17 22:52:06 dc2 samba[3960]: ../source4/dsdb/dns/dns_update.c:295: > Failed DNS update - NT_STATUS_TOO_MANY_OPENED_FILES > > smb.conf is minimalistic: > > # Global parameters > [global] > netbios name = DC2 > realm = AD.DOMAIN.TLD > server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, > drepl, winbindd, ntp_signd, kcc, dnsupdate > workgroup = DOMAIN > server role = active directory domain controller > > [netlogon] > path = /usr/local/samba/var/locks/sysvol/ad.domain.tld/scripts > read only = No > > [sysvol] > path = /usr/local/samba/var/locks/sysvol > read only = No > > Maybe somebody has an idea what I did wrong? > > >Try reading this wiki page, it may help: https://wiki.samba.org/index.php/Check_and_fix_DNS_entries_on_DC_joins Rowland
Norbert Hanke
2016-Jul-18 20:31 UTC
[Samba] samba 4.4.5 DC with bind9: DNS update failing with NOTAUTH
On 18.07.2016 20:10, Rowland penny wrote:> On 18/07/16 00:02, Norbert Hanke wrote: >> Hello, >> >> I'm trying to join a samba 4 DC to an already existing samba 4 DC, >> both with BIND9_DLZ. Samba is at version 4.4.5, bind is version >> 9.10.4-P1, all brand new. >> >> The existing DC runs fine, but the added DC refuses to update its >> local bind database: every attempt to update the local DNS results in >> "update failed: NOTAUTH". AD replication works perfectly. >> >> Both systems are set up identically except for the >> provisioning/joining command. On the first I did >> samba-tool domain provision --use-rfc2307 --domain=$domain >> --server-role=dc --dns-backend=BIND9_DLZ \ >> --realm=$realm --adminpass=Wonttell >> and on the second I do >> samba-tool domain join $domain DC -Uadministrator --realm=$realm >> --dns-backend=BIND9_DLZ >> >> Versions are the same, bind config is the same, I tried follow every >> rule I could find. >> >> # samba_dnsupdate --verbose -d 9 >> INFO: Current debug levels: >> all: 9 >> (... more such levels ...) >> lpcfg_load: refreshing parameters from /usr/local/samba/etc/smb.conf >> Processing section "[global]" >> Processing section "[netlogon]" >> Processing section "[sysvol]" >> pm_process() returned Yes >> added interface eth0 ip=192.168.1.9 bcast=192.168.1.255 >> netmask=255.255.255.0 >> IPs: ['192.168.1.9'] >> Module 'tombstone_reanimate' is disabled. Skip >> registration.lpcfg_servicenumber: couldn't find ldb >> schema_fsmo_init: we are master[no] updates allowed[no] >> schema_fsmo_init: we are master[no] updates allowed[no] >> Looking for DNS entry A dc2.ad.domain.ch 192.168.1.9 as >> dc2.ad.domain.ch. >> Looking for DNS entry A ad.domain.ch 192.168.1.9 as ad.domain.ch. >> Failed to find matching DNS entry A ad.domain.ch 192.168.1.9 >> need update: A ad.domain.ch 192.168.1.9 >> (... many more such Looking...need update blocks) >> 24 DNS updates and 0 DNS deletes needed >> ldb_wrap open of secrets.ldb >> Received smb_krb5 packet of length 298 >> Received smb_krb5 packet of length 1311 >> update(nsupdate): A ad.domain.tld 192.168.1.9 >> Calling nsupdate for A ad.domain.tld 192.168.1.9 (add) >> Outgoing update query: >> ;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0 >> ;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0 >> ;; UPDATE SECTION: >> ad.domain.tld. 900 IN A 192.168.1.9 >> >> update failed: NOTAUTH >> Failed nsupdate: 2 >> (... many more such failed updates ...) >> Failed update of 24 entries >> # 22:37:30 root at dc2:/root/ >> >> >> In /var/log/syslog there are these equivalent 24 error message every >> 10 minutes: >> Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.742592, 0] >> ../lib/util/util_runcmd.c:328(samba_runcmd_io_handler) >> Jul 17 22:52:06 dc2 samba[3960]: >> /usr/local/samba/sbin/samba_dnsupdate: update failed: NOTAUTH >> and the last of the 24 entries is always followed by >> Jul 17 22:52:06 dc2 samba[3960]: [2016/07/17 22:52:06.866877, 0] >> ../source4/dsdb/dns/dns_update.c:295(dnsupdate_nameupdate_done) >> Jul 17 22:52:06 dc2 samba[3960]: >> ../source4/dsdb/dns/dns_update.c:295: Failed DNS update - >> NT_STATUS_TOO_MANY_OPENED_FILES >> >> smb.conf is minimalistic: >> >> # Global parameters >> [global] >> netbios name = DC2 >> realm = AD.DOMAIN.TLD >> server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, >> drepl, winbindd, ntp_signd, kcc, dnsupdate >> workgroup = DOMAIN >> server role = active directory domain controller >> >> [netlogon] >> path = /usr/local/samba/var/locks/sysvol/ad.domain.tld/scripts >> read only = No >> >> [sysvol] >> path = /usr/local/samba/var/locks/sysvol >> read only = No >> >> Maybe somebody has an idea what I did wrong? >> >> >> > > Try reading this wiki page, it may help: > > https://wiki.samba.org/index.php/Check_and_fix_DNS_entries_on_DC_joins > > Rowland > >Yes I did that from the begining. The entries were indeed missing and added them. I also tried adding with a lower-case dc2 instead of DC2. It did not make a difference. But now it surprises me that adding worked at all. Isn't a "*samba-tool dns add ..." about the same as what **samba_dnsupdate does when adding entries?* *And I just checked: the two added entries are still there and are resolvable through both DNS servers.* It's a mystery to me.
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