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[Samba] samba 4.7.6-Ubuntu + ipv6 not work bind9-DLZ




Hi, all


I trying setting domain samba with bind9-DLZ. I followed the tutorial https://wiki.samba.org/index.php/Setting_up_Samba_as_an_Active_Directory_Domain_Controller, but not work. see the tests bellow


ricardobarbosa@isadora:~$ bash tools/testSambaRecords.sh
Host _ldap._tcp.freewaynet.corp not found: 3(NXDOMAIN)
Host _kerberos._udp.freewaynet.corp not found: 3(NXDOMAIN)
Host agamenon.freewaynet.corp not found: 3(NXDOMAIN)
ricardobarbosa@isadora:~$

following link to troubleshooting


------------------------ inicio -------------------------------
root@agamenon:~# ps axf | egrep "samba|smbd|winbind"
 1283 pts/0    S+     0:00  |                   \_ samba -i
 1284 pts/0    S+     0:00  |                       \_ samba -i
 1290 pts/0    S+     0:00  |                       |   \_ samba -i
1291 ? Ss 0:00 | | \_ /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground --log-stdout 1305 ? S 0:00 | | \_ /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground --log-stdout 1306 ? S 0:00 | | \_ /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground --log-stdout 1307 ? S 0:00 | | \_ /usr/sbin/smbd -D --option=server role check:inhibit=yes --foreground --log-stdout
 1285 pts/0    S+     0:00  |                       \_ samba -i
 1286 pts/0    S+     0:00  |                       \_ samba -i
 1287 pts/0    S+     0:00  |                       \_ samba -i
 1288 pts/0    S+     0:00  |                       \_ samba -i
 1289 pts/0    S+     0:00  |                       \_ samba -i
 1292 pts/0    S+     0:00  |                       \_ samba -i
 1293 pts/0    S+     0:00  |                       \_ samba -i
 1295 pts/0    S+     0:00  |                       \_ samba -i
 1297 pts/0    S+     0:00  |                       \_ samba -i
 1298 pts/0    S+     0:00  |                       \_ samba -i
------------------------------------------------------------


-------------------------------------------------------------

root@agamenon:~# named -V
BIND 9.11.3-1ubuntu1.1-Ubuntu (Extended Support Version) <id:a375815>
running on Linux x86_64 4.15.0-33-generic #36-Ubuntu SMP Wed Aug 15 16:00:05 UTC 2018 built by make with '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=/usr/include' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu' '--libexecdir=/usr/lib/x86_64-linux-gnu' '--disable-maintainer-mode' '--disable-dependency-tracking' '--libdir=/usr/lib/x86_64-linux-gnu' '--sysconfdir=/etc/bind' '--with-python=python3' '--localstatedir=/' '--enable-threads' '--enable-largefile' '--with-libtool' '--enable-shared' '--enable-static' '--with-gost=no' '--with-openssl=/usr' '--with-gssapi=/usr' '--with-libjson=/usr' '--without-lmdb' '--with-gnu-ld' '--with-geoip=/usr' '--with-atf=no' '--enable-ipv6' '--enable-rrl' '--enable-filter-aaaa' '--enable-native-pkcs11' '--with-pkcs11=/usr/lib/softhsm/libsofthsm2.so' '--with-randomdev=/dev/urandom' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/bind9-O2kLHp/bind9-9.11.3+dfsg=. -fstack-protector-strong -Wformat -Werror=format-security -fno-strict-aliasing -fno-delete-null-pointer-checks -DNO_VERSION_DATE -DDIG_SIGCHASE' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2'
compiled by GCC 7.3.0
compiled with OpenSSL version: OpenSSL 1.1.0g  2 Nov 2017
linked to OpenSSL version: OpenSSL 1.1.0g  2 Nov 2017
compiled with libxml2 version: 2.9.4
linked to libxml2 version: 20904
compiled with libjson-c version: 0.12.1
linked to libjson-c version: 0.12.1
compiled with zlib version: 1.2.11
linked to zlib version: 1.2.11
threads support is enabled

root@agamenon:~# cat /etc/bind/named.conf
// This is the primary configuration file for the BIND DNS server named.
//
// Please read /usr/share/doc/bind9/README.Debian.gz for information on the
// structure of BIND configuration files in Debian, *BEFORE* you customize
// this configuration file.
//
// If you are just adding zones, please do that in /etc/bind/named.conf.local

include "/etc/bind/named.conf.options";
include "/etc/bind/named.conf.local";
include "/etc/bind/named.conf.default-zones";
include "/var/lib/samba/private/named.conf";


root@agamenon:~# cat /var/lib/samba/private/named.conf
# This DNS configuration is for BIND 9.8.0 or later with dlz_dlopen support.
#
# This file should be included in your main BIND configuration file
#
# For example with
# include "/var/lib/samba/private/named.conf";

#
# This configures dynamically loadable zones (DLZ) from AD schema
# Uncomment only single database line, depending on your BIND version
#
dlz "AD DNS Zone" {
    # For BIND 9.8.x
    # database "dlopen /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9.so";

    # For BIND 9.9.x
# database "dlopen /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_9.so";

    # For BIND 9.10.x
# database "dlopen /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_10.so";

    # For BIND 9.11.x
database "dlopen /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so";
};

root@agamenon:~#


when i run the command "samba_dnsupdate" i get the following messages:


------------------------------------------------------

root@agamenon:~# samba_dnsupdate --verbose --all-names
IPs: ['2001:db8:3:0:20c:29ff:fecb:5299', '192.168.1.252']
force update: A agamenon.freewaynet.corp 192.168.1.252
force update: AAAA agamenon.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
force update: NS freewaynet.corp agamenon.freewaynet.corp
force update: NS _msdcs.freewaynet.corp agamenon.freewaynet.corp
force update: A freewaynet.corp 192.168.1.252
force update: AAAA freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
force update: SRV _ldap._tcp.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _ldap._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _ldap._tcp.9ab474e0-d6c2-431d-a769-c44ba1f20818.domains._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _kerberos._tcp.freewaynet.corp agamenon.freewaynet.corp 88
force update: SRV _kerberos._udp.freewaynet.corp agamenon.freewaynet.corp 88
force update: SRV _kerberos._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88
force update: SRV _kpasswd._tcp.freewaynet.corp agamenon.freewaynet.corp 464
force update: SRV _kpasswd._udp.freewaynet.corp agamenon.freewaynet.corp 464
force update: CNAME 3f8e7991-853a-41c1-854b-2dc24cf51667._msdcs.freewaynet.corp agamenon.freewaynet.corp
force update: SRV _ldap._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _kerberos._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 88
force update: SRV _kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88
force update: SRV _ldap._tcp.pdc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
force update: A gc._msdcs.freewaynet.corp 192.168.1.252
force update: AAAA gc._msdcs.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
force update: SRV _gc._tcp.freewaynet.corp agamenon.freewaynet.corp 3268
force update: SRV _ldap._tcp.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268
force update: SRV _gc._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 3268
force update: SRV _ldap._tcp.Default-First-Site-Name._sites.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268
force update: A DomainDnsZones.freewaynet.corp 192.168.1.252
force update: AAAA DomainDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
force update: SRV _ldap._tcp.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _ldap._tcp.Default-First-Site-Name._sites.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
force update: A ForestDnsZones.freewaynet.corp 192.168.1.252
force update: AAAA ForestDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
force update: SRV _ldap._tcp.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
force update: SRV _ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
34 DNS updates and 0 DNS deletes needed
Failed to get Kerberos credentials, falling back to samba-tool: kinit for AGAMENON$@FREEWAYNET.CORP failed (Cannot contact any KDC for requested realm)

update (samba-tool): A agamenon.freewaynet.corp 192.168.1.252
Calling samba-tool dns for A agamenon.freewaynet.corp 192.168.1.252 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', 'agamenon', 'A', '192.168.1.252']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of A agamenon.freewaynet.corp 192.168.1.252
update (samba-tool): AAAA agamenon.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
Calling samba-tool dns for AAAA agamenon.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', 'agamenon', 'AAAA', '2001:db8:3:0:20c:29ff:fecb:5299']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of AAAA agamenon.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
update (samba-tool): NS freewaynet.corp agamenon.freewaynet.corp
Calling samba-tool dns for NS freewaynet.corp agamenon.freewaynet.corp (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '@', 'NS', 'agamenon.freewaynet.corp']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of NS freewaynet.corp agamenon.freewaynet.corp
update (samba-tool): NS _msdcs.freewaynet.corp agamenon.freewaynet.corp
Calling samba-tool dns for NS _msdcs.freewaynet.corp agamenon.freewaynet.corp (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '@', 'NS', 'agamenon.freewaynet.corp']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of NS _msdcs.freewaynet.corp agamenon.freewaynet.corp
update (samba-tool): A freewaynet.corp 192.168.1.252
Calling samba-tool dns for A freewaynet.corp 192.168.1.252 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '@', 'A', '192.168.1.252']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of A freewaynet.corp 192.168.1.252
update (samba-tool): AAAA freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
Calling samba-tool dns for AAAA freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '@', 'AAAA', '2001:db8:3:0:20c:29ff:fecb:5299']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of AAAA freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
update (samba-tool): SRV _ldap._tcp.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_ldap._tcp', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _ldap._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_ldap._tcp.dc', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _ldap._tcp.9ab474e0-d6c2-431d-a769-c44ba1f20818.domains._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.9ab474e0-d6c2-431d-a769-c44ba1f20818.domains._msdcs.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_ldap._tcp.9ab474e0-d6c2-431d-a769-c44ba1f20818.domains', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.9ab474e0-d6c2-431d-a769-c44ba1f20818.domains._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _kerberos._tcp.freewaynet.corp agamenon.freewaynet.corp 88
Calling samba-tool dns for SRV _kerberos._tcp.freewaynet.corp agamenon.freewaynet.corp 88 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_kerberos._tcp', 'SRV', 'agamenon.freewaynet.corp 88 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kerberos._tcp.freewaynet.corp agamenon.freewaynet.corp 88
update (samba-tool): SRV _kerberos._udp.freewaynet.corp agamenon.freewaynet.corp 88
Calling samba-tool dns for SRV _kerberos._udp.freewaynet.corp agamenon.freewaynet.corp 88 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_kerberos._udp', 'SRV', 'agamenon.freewaynet.corp 88 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kerberos._udp.freewaynet.corp agamenon.freewaynet.corp 88
update (samba-tool): SRV _kerberos._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88
Calling samba-tool dns for SRV _kerberos._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_kerberos._tcp.dc', 'SRV', 'agamenon.freewaynet.corp 88 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kerberos._tcp.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88
update (samba-tool): SRV _kpasswd._tcp.freewaynet.corp agamenon.freewaynet.corp 464
Calling samba-tool dns for SRV _kpasswd._tcp.freewaynet.corp agamenon.freewaynet.corp 464 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_kpasswd._tcp', 'SRV', 'agamenon.freewaynet.corp 464 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kpasswd._tcp.freewaynet.corp agamenon.freewaynet.corp 464
update (samba-tool): SRV _kpasswd._udp.freewaynet.corp agamenon.freewaynet.corp 464
Calling samba-tool dns for SRV _kpasswd._udp.freewaynet.corp agamenon.freewaynet.corp 464 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_kpasswd._udp', 'SRV', 'agamenon.freewaynet.corp 464 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kpasswd._udp.freewaynet.corp agamenon.freewaynet.corp 464
update (samba-tool): CNAME 3f8e7991-853a-41c1-854b-2dc24cf51667._msdcs.freewaynet.corp agamenon.freewaynet.corp
Calling samba-tool dns for CNAME 3f8e7991-853a-41c1-854b-2dc24cf51667._msdcs.freewaynet.corp agamenon.freewaynet.corp (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '3f8e7991-853a-41c1-854b-2dc24cf51667', 'CNAME', 'agamenon.freewaynet.corp']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of CNAME 3f8e7991-853a-41c1-854b-2dc24cf51667._msdcs.freewaynet.corp agamenon.freewaynet.corp
update (samba-tool): SRV _ldap._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_ldap._tcp.Default-First-Site-Name._sites', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_ldap._tcp.Default-First-Site-Name._sites.dc', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _kerberos._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 88
Calling samba-tool dns for SRV _kerberos._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 88 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_kerberos._tcp.Default-First-Site-Name._sites', 'SRV', 'agamenon.freewaynet.corp 88 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kerberos._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 88
update (samba-tool): SRV _kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88
Calling samba-tool dns for SRV _kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_kerberos._tcp.Default-First-Site-Name._sites.dc', 'SRV', 'agamenon.freewaynet.corp 88 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs.freewaynet.corp agamenon.freewaynet.corp 88
update (samba-tool): SRV _ldap._tcp.pdc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.pdc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_ldap._tcp.pdc', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.pdc._msdcs.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): A gc._msdcs.freewaynet.corp 192.168.1.252
Calling samba-tool dns for A gc._msdcs.freewaynet.corp 192.168.1.252 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', 'gc', 'A', '192.168.1.252']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of A gc._msdcs.freewaynet.corp 192.168.1.252
update (samba-tool): AAAA gc._msdcs.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
Calling samba-tool dns for AAAA gc._msdcs.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', 'gc', 'AAAA', '2001:db8:3:0:20c:29ff:fecb:5299']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of AAAA gc._msdcs.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
update (samba-tool): SRV _gc._tcp.freewaynet.corp agamenon.freewaynet.corp 3268
Calling samba-tool dns for SRV _gc._tcp.freewaynet.corp agamenon.freewaynet.corp 3268 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_gc._tcp', 'SRV', 'agamenon.freewaynet.corp 3268 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _gc._tcp.freewaynet.corp agamenon.freewaynet.corp 3268
update (samba-tool): SRV _ldap._tcp.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268
Calling samba-tool dns for SRV _ldap._tcp.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_ldap._tcp.gc', 'SRV', 'agamenon.freewaynet.corp 3268 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268
update (samba-tool): SRV _gc._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 3268
Calling samba-tool dns for SRV _gc._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 3268 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_gc._tcp.Default-First-Site-Name._sites', 'SRV', 'agamenon.freewaynet.corp 3268 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _gc._tcp.Default-First-Site-Name._sites.freewaynet.corp agamenon.freewaynet.corp 3268
update (samba-tool): SRV _ldap._tcp.Default-First-Site-Name._sites.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268
Calling samba-tool dns for SRV _ldap._tcp.Default-First-Site-Name._sites.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', '_msdcs.freewaynet.corp', '_ldap._tcp.Default-First-Site-Name._sites.gc', 'SRV', 'agamenon.freewaynet.corp 3268 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.Default-First-Site-Name._sites.gc._msdcs.freewaynet.corp agamenon.freewaynet.corp 3268
update (samba-tool): A DomainDnsZones.freewaynet.corp 192.168.1.252
Calling samba-tool dns for A DomainDnsZones.freewaynet.corp 192.168.1.252 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', 'DomainDnsZones', 'A', '192.168.1.252']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of A DomainDnsZones.freewaynet.corp 192.168.1.252
update (samba-tool): AAAA DomainDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
Calling samba-tool dns for AAAA DomainDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', 'DomainDnsZones', 'AAAA', '2001:db8:3:0:20c:29ff:fecb:5299']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of AAAA DomainDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
update (samba-tool): SRV _ldap._tcp.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_ldap._tcp.DomainDnsZones', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _ldap._tcp.Default-First-Site-Name._sites.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.Default-First-Site-Name._sites.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_ldap._tcp.Default-First-Site-Name._sites.DomainDnsZones', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.Default-First-Site-Name._sites.DomainDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): A ForestDnsZones.freewaynet.corp 192.168.1.252
Calling samba-tool dns for A ForestDnsZones.freewaynet.corp 192.168.1.252 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', 'ForestDnsZones', 'A', '192.168.1.252']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of A ForestDnsZones.freewaynet.corp 192.168.1.252
update (samba-tool): AAAA ForestDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
Calling samba-tool dns for AAAA ForestDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', 'ForestDnsZones', 'AAAA', '2001:db8:3:0:20c:29ff:fecb:5299']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of AAAA ForestDnsZones.freewaynet.corp 2001:db8:3:0:20c:29ff:fecb:5299
update (samba-tool): SRV _ldap._tcp.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_ldap._tcp.ForestDnsZones', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
update (samba-tool): SRV _ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
Calling samba-tool dns for SRV _ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389 (add)
Calling samba-tool dns add -k no -P ['2001:db8:3:0:20c:29ff:fecb:5299', 'freewaynet.corp', '_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones', 'SRV', 'agamenon.freewaynet.corp 389 0 100']
ERROR(runtime): uncaught exception - (9711, 'WERR_DNS_ERROR_RECORD_ALREADY_EXISTS')
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/__init__.py", line 176, in _run
    return self.run(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/samba/netcmd/dns.py", line 940, in run
    raise e
Failed 'samba-tool dns' based update of SRV _ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones.freewaynet.corp agamenon.freewaynet.corp 389
Failed update of 34 entries
root@agamenon:~#


consulting the all records the dns:


root@agamenon:~# samba-tool dns query agamenon freewaynet.corp @ ALL -U administrator
Password for [FREEWAYNET\administrator]:
  Name=, Records=4, Children=0
SOA: serial=155, refresh=900, retry=600, expire=86400, minttl=3600, ns=agamenon.freewaynet.corp., email=hostmaster.freewaynet.corp. (flags=600000f0, serial=155, ttl=3600)
    NS: agamenon.freewaynet.corp. (flags=600000f0, serial=1, ttl=900)
    A: 192.168.1.252 (flags=600000f0, serial=1, ttl=900)
AAAA: 2001:db8:0003:0000:020c:29ff:fecb:5299 (flags=600000f0, serial=1, 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=agamenon, Records=2, Children=0
    A: 192.168.1.252 (flags=f0, serial=1, ttl=900)
AAAA: 2001:db8:0003:0000:020c:29ff:fecb:5299 (flags=f0, serial=1, ttl=900)
  Name=DomainDnsZones, Records=0, Children=2
  Name=ForestDnsZones, Records=0, Children=2
root@agamenon:~#

I'm wary of ipv6, testing on another machine without ipv6 and if works perfectly. Does anyone have any ideas?

root@agamenon:~# ifconfig
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.252  netmask 255.255.255.0  broadcast 192.168.1.255
inet6 2001:db8:3:0:20c:29ff:fecb:5299 prefixlen 64 scopeid 0x0<global>
        inet6 fe80::20c:29ff:fecb:5299  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:cb:52:99  txqueuelen 1000  (Ethernet)
        RX packets 6618  bytes 1246620 (1.2 MB)
        RX errors 0  dropped 3  overruns 0  frame 0
        TX packets 2567  bytes 386427 (386.4 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


Regards.






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