sambalist.1.olol13 at spamgourmet.com
2015-Mar-19 07:48 UTC
[Samba] Dynamic DNS Updates not working. samba_dnsupdate : RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
Good morning!
First of all thanks Rowland for the fast answer yesterday! I realized that
samba-technical might have been the wrong mailing list and switched it to
the normal samba users list (hopefully it worked, as it does get a bit
confusing with spamgourmets sendto addresses!). Unfortunately the problem
with samba_dnsupdate remains after the changes.
I did changed the smb.conf, krb5.conf, and hosts as requested. I am pretty
new to both samba and linux and added most lines that looked promising from
other threads. Expected the DC itself to be able to join the domain
(again), as I remembered it to be possible after a classicupgrade with the
samba internal dns.
Regarding BIND, I am using version 9.9 on Debian Jessie and read it is not
necessary to build it yourself and configure it with dlopen (see here
<https://lists.samba.org/archive/samba/2015-January/188049.html>).
The driver is supposedly included and also seems to load alright:
named -g -c /etc/bind/named.conf -u named -d3 2>&1 | grep -i dlz
19-Mar-2015 08:05:26.396 Registering DLZ_dlopen driver
19-Mar-2015 08:05:26.396 Registering SDLZ driver 'dlopen'
19-Mar-2015 08:05:26.396 Registering DLZ driver 'dlopen'
19-Mar-2015 08:05:26.405 Loading SDLZ driver.
19-Mar-2015 08:05:26.646 samba_dlz: started for DN
DC=intranet,DC=mayweg,DC=net
19-Mar-2015 08:05:26.646 SDLZ driver loaded successfully.
19-Mar-2015 08:05:26.646 DLZ driver loaded successfully.
19-Mar-2015 08:05:26.646 samba_dlz: starting configure
19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone
'11.168.192.in-addr.arpa'
19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone '
intranet.mayweg.net'
19-Mar-2015 08:05:26.648 samba_dlz: configured writeable zone '_
msdcs.intranet.mayweg.net'
The error for samba_dnsupdate --all-names remains (btw, without --all-names
it works):
ldb: Destroying timer event 0x233f310 "ltdb_timeout"
ldb: Ending timer event 0x1d2bb70 "ltdb_callback"
Traceback (most recent call last):
File "/usr/sbin/samba_dnsupdate", line 612, in <module>
get_credentials(lp)
File "/usr/sbin/samba_dnsupdate", line 125, in get_credentials
raise e
RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot
contact any KDC for requested realm)
Again, I'm very grateful for any hints where the problem could originate
from.
Greetings,
Timo
On 18 March 2015 at 19:57, Rowland Penny - repenny241155 at gmail.com <
sambalist.olol13.20ba6b371d.repenny241155#gmail.com at ob.0sg.net> wrote:
> On 18/03/15 17:05, sambalist.1.olol13 at spamgourmet.com wrote:
>
>> Hello,
>>
>> I am trying to upgrade an Samba 3 DC to an Samba 4 AD DC with BIND9_DLZ
>> backend on Debian Jessie. Before I was using tinydns on a different
server
>> and want to replace it with BIND.
>> I'm trying this with copies of virtual machines in a different
subnet (The
>> debian jessie AD DC and DNS, a Win7 Client used for RSAT tools
>> administration, a debian squeezy file server that is part of the domain
>> and
>> an xp client).
>> For the most part the new configuration is working, a lot thanks to
>> exploration of the wiki and the mailing list archives, but I cannot
>> resolve
>> the hostnames of domain members and think it is because dynamic DNS
>> updates
>> through kerberos aren't working.
>>
>> When I try "samba_dnsupdate --verbose --all-names", I get the
following
>> error:
>> ldb: Destroying timer event 0x1a42d10 "ltdb_timeout"
>> ldb: Ending timer event 0x1859f30 "ltdb_callback"
>> Traceback (most recent call last):
>> File "/usr/sbin/samba_dnsupdate", line 612, in
<module>
>> get_credentials(lp)
>> File "/usr/sbin/samba_dnsupdate", line 125, in
get_credentials
>> raise e
>> RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot
>> contact any KDC for requested realm)
>>
>> I can join the domain with windows & linux machines and administer
it and
>> the dns server with RSAT tools. Neither SELinux nor Apparmor are
present.
>>
>> The dns tests from the samba ad dc howto
>>
<https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO#BIND9_DNS_Backend>
>> were
>> all successful:
>> host -t SRV _ldap._tcp.intranet.mayweg.net.
>> _ldap._tcp.intranet.mayweg.net has SRV record 0 100 389
>> server06.intranet.mayweg.net.
>> host -t SRV _kerberos._udp.intranet.mayweg.net.
>> _kerberos._udp.intranet.mayweg.net has SRV record 0 100 88
>> server06.intranet.mayweg.net.
>> host -t A server06.intranet.mayweg.net.
>> server06.intranet.mayweg.net has address 192.168.11.250
>>
>> I can resolve the server06.intranet.mayweg.net and intranet.mayweg.net
on
>> all machines, but hostnames of machines I joined to the domain are not
>> resolvable from other domain members. A linux machine that joined had
the
>> output:
>> Joined 'SERVER13' to realm 'intranet.mayweg.net'
>> DNS update failed!
>>
>> I can get kerberos tickets on all machines, and join the domain using
net
>> ads join from all of them but the ad dc itself.
>> On server06 "net ads join -Uadministrator" returns
>> Failed to join domain: This operation is only allowed for the PDC of
the
>> domain. Maybe this has something to do with the dns updates not
working.
>>
>
> You do not run 'net ads join' on a DC, the provision does it for
you (or
> as in your case, the upgrade procedure)
>
>
>>
>> I'll follow up with version info and configuration files
(interfaces,
>> resolv.conf, hosts, smb.conf, krb5.conf, named.conf).
>> Samba version is 4.1.17, BIND 9.9.5. Unnecessarily I had the MIT
>> implementations of krb5-admin-server and krb5-kdc installed and
configured
>> until I realized Samba4 brings the heimdal implementation of kerberos
with
>> it. I uninstalled the MIT parts afterwards. Configuration files:
>>
>>
>> /etc/network/interfaces:
>> auto lo
>> iface lo inet loopback
>>
>> auto eth0
>> iface eth0 inet static
>> address 192.168.11.250
>> netmask 255.255.255.0
>> network 192.168.11.0
>> broadcast 192.168.11.255
>>
>>
>> /etc/resolv.conf:
>> nameserver 192.168.11.250 #had 127.0.0.1 before with the same error
>> domain intranet.mayweg.net
>>
>>
>> /etc/hosts:
>> 127.0.0.1 localhost localhost.localdomain
>> 192.168.11.250 server06.intranet.mayweg.net server06
>> krb.intranet.mayweg.net kdc.intranet.mayweg.net intranet.mayweg.net
>>
>
> Remove everything from the '192.168.11.250' line from 'krb'
onwards, they
> shouldn't be there.
>
>
>
>> # The following lines are desirable for IPv6 capable hosts
>> ::1 localhost ip6-localhost ip6-loopback
>> ff02::1 ip6-allnodes
>> ff02::2 ip6-allrouters
>>
>>
>> /etc/samba/smb.conf:
>> [global]
>> workgroup = MAYWEG.NET
>> realm = INTRANET.MAYWEG.NET
>> netbios name = SERVER06
>> interfaces = lo, eth0
>> bind interfaces only = Yes
>> server role = active directory domain controller
>> server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
winbind,
>> ntp_signd, kcc, dnsupdate
>> idmap_ldb:use rfc2307 = yes
>> #added after classicupgrade
>> kerberos method = system keytab
>> client ldap sasl wrapping = sign
>> allow dns updates = nonsecure and secure
>> nsupdate command = /usr/bin/nsupdate -g
>> domain logons = yes
>>
>> [netlogon]
>> path = /var/lib/samba/sysvol/intranet.mayweg.net/scripts
>> read only = No
>>
>> [sysvol]
>> path = /var/lib/samba/sysvol
>> read only = No
>>
>>
> remove everything you added to smb.conf
>
> /etc/krb5.conf (copied from /var/lib/samba/private/krb5.conf):
>> [libdefaults]
>> default_realm = INTRANET.MAYWEG.NET
>> dns_lookup_realm = true #changed to true
>> dns_lookup_kdc = true
>>
>> #added after classicupgrade
>>
>> [realms]
>> INTRANET.MAYWEG.NET = {
>> kdc = krb.intranet.mayweg.net
>> admin_server = krb.intranet.mayweg.net
>> default_domain = intranet.mayweg.net
>> }
>>
>> [domain_realm]
>>
>> .intranet.mayweg.net = INTRANET.MAYWEG.NET
>> intranet.mayweg.net = INTRANET.MAYWEG.NET
>>
>> [logging]
>> kdc = FILE:/var/log/kerberos/krb5kdc.log
>> admin_server = FILE:/var/log/kerberos/kadmin.log
>> default = FILE:/var/log/kerberos/krb5lib.log
>>
>>
> Change krb5.conf back to what it was.
>
>
> /etc/bind/named.conf (copied together from the includes...):
>> zone "." {
>> type hint;
>> file "/etc/bind/db.root";
>> };
>> // be authoritative for the localhost forward and reverse zones, and
for
>> // broadcast zones as per RFC 1912
>>
>> zone "localhost" {
>> type master;
>> file "/etc/bind/db.local";
>> };
>>
>> zone "127.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.127";
>> };
>>
>> zone "0.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.0";
>> };
>>
>> zone "255.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.255";
>> };
>> 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";
>> };
>> logging {
>> channel update_debug {
>> file "/var/log/update_debug.log" versions 3
size 100k;
>> severity debug;
>> print-severity yes;
>> print-time yes;
>> };
>> channel security_info {
>> file "/var/log/security_info.log" versions 1
size 100k;
>> severity info;
>> print-severity yes;
>> print-time yes;
>> };
>> channel bind_log {
>> file "/var/log/bind.log" versions 3 size 1m;
>> severity info;
>> print-category yes;
>> print-severity yes;
>> print-time yes;
>> };
>>
>> category default { bind_log; };
>> category lame-servers { null; };
>> category update { update_debug; };
>> category update-security { update_debug; };
>> category security { security_info; };
>> };
>> options {
>> directory "/var/named";
>> recursion yes;
>> dnssec-validation auto;
>> tkey-gssapi-keytab
"/var/lib/samba/private/dns.keytab";
>> auth-nxdomain yes;
>> notify no;
>> empty-zones-enable no;
>> allow-query {
>> 127.0.0.1;
>> 192.168.11.0/24;
>> # add other networks you want to allow to query your DNS
>> };
>> allow-query-cache {
>> 127.0.0.1;
>> 192.168.11.0/24;
>> # add other networks you want to allow to query your DNS
>> };
>> allow-recursion {
>> 192.168.11.0/24;
>> 127.0.0.1;
>> # add other networks you want to allow to do recursive queries
>> };
>> forwarders {
>> # Google public DNS server here - replace with your own if
>> necessary
>> };
>> allow-transfer {
>> # this config is for a single master DNS server
>> none;
>> };
>> };
>>
>> I hope I provided all the necessary information and am grateful for any
>> hints on where to look for a fix to this problem.
>>
>> Greetings,
>> Timo
>>
>
> Finally, was the version of bind you are using configured with dlopen ?
>
> Rowland
>
>
>
sambalist.1.olol13 at spamgourmet.com
2015-Mar-19 08:38 UTC
[Samba] Fwd: Dynamic DNS Updates not working. samba_dnsupdate : RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
Good morning!
First of all thanks Rowland for the fast answer yesterday! I realized that
samba-technical might have been the wrong mailing list and switched it to
the normal samba users list (hopefully it worked, as it does get a bit
confusing with spamgourmets addresses!). Unfortunately the problem with
samba_dnsupdate remains after the changes.
I did changed the smb.conf, krb5.conf, and hosts as requested. I am pretty
new to both samba and linux and added most lines to the configs that looked
promising.
Expected the DC itself to be able to join the domain (again), as I
remembered it to be possible after a classicupgrade with the samba internal
dns.
Regarding BIND, I am using version 9.9 on Debian Jessie and read it is not
necessary to build it yourself and configure it with dlopen (see here
<https://lists.samba.org/archive/samba/2015-January/188049.html>).
The driver is supposedly included and also seems to load alright:
named -g -c /etc/bind/named.conf -u named -d3 2>&1 | grep -i dlz
19-Mar-2015 08:05:26.396 Registering DLZ_dlopen driver
19-Mar-2015 08:05:26.396 Registering SDLZ driver 'dlopen'
19-Mar-2015 08:05:26.396 Registering DLZ driver 'dlopen'
19-Mar-2015 08:05:26.405 Loading SDLZ driver.
19-Mar-2015 08:05:26.646 samba_dlz: started for DN
DC=intranet,DC=mayweg,DC=net
19-Mar-2015 08:05:26.646 SDLZ driver loaded successfully.
19-Mar-2015 08:05:26.646 DLZ driver loaded successfully.
19-Mar-2015 08:05:26.646 samba_dlz: starting configure
19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone
'11.168.192.in-addr.arpa'
19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone '
intranet.mayweg.net'
19-Mar-2015 08:05:26.648 samba_dlz: configured writeable zone '_
msdcs.intranet.mayweg.net'
The error for samba_dnsupdate --all-names remains (btw, without --all-names
it works):
ldb: Destroying timer event 0x233f310 "ltdb_timeout"
ldb: Ending timer event 0x1d2bb70 "ltdb_callback"
Traceback (most recent call last):
File "/usr/sbin/samba_dnsupdate", line 612, in <module>
get_credentials(lp)
File "/usr/sbin/samba_dnsupdate", line 125, in get_credentials
raise e
RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot
contact any KDC for requested realm)
Again, I'm very grateful for any hints where the problem could originate
from.
Greetings,
Timo
On 18 March 2015 at 19:57, Rowland Penny - repenny241155 at gmail.com <
sambalist.olol13.20ba6b371d.repenny241155#gmail.com at ob.0sg.net> wrote:
> On 18/03/15 17:05, sambalist.1.olol13 at spamgourmet.com wrote:
>
>> Hello,
>>
>> I am trying to upgrade an Samba 3 DC to an Samba 4 AD DC with BIND9_DLZ
>> backend on Debian Jessie. Before I was using tinydns on a different
server
>> and want to replace it with BIND.
>> I'm trying this with copies of virtual machines in a different
subnet (The
>> debian jessie AD DC and DNS, a Win7 Client used for RSAT tools
>> administration, a debian squeezy file server that is part of the domain
>> and
>> an xp client).
>> For the most part the new configuration is working, a lot thanks to
>> exploration of the wiki and the mailing list archives, but I cannot
>> resolve
>> the hostnames of domain members and think it is because dynamic DNS
>> updates
>> through kerberos aren't working.
>>
>> When I try "samba_dnsupdate --verbose --all-names", I get the
following
>> error:
>> ldb: Destroying timer event 0x1a42d10 "ltdb_timeout"
>> ldb: Ending timer event 0x1859f30 "ltdb_callback"
>> Traceback (most recent call last):
>> File "/usr/sbin/samba_dnsupdate", line 612, in
<module>
>> get_credentials(lp)
>> File "/usr/sbin/samba_dnsupdate", line 125, in
get_credentials
>> raise e
>> RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot
>> contact any KDC for requested realm)
>>
>> I can join the domain with windows & linux machines and administer
it and
>> the dns server with RSAT tools. Neither SELinux nor Apparmor are
present.
>>
>> The dns tests from the samba ad dc howto
>>
<https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO#BIND9_DNS_Backend>
>> were
>> all successful:
>> host -t SRV _ldap._tcp.intranet.mayweg.net.
>> _ldap._tcp.intranet.mayweg.net has SRV record 0 100 389
>> server06.intranet.mayweg.net.
>> host -t SRV _kerberos._udp.intranet.mayweg.net.
>> _kerberos._udp.intranet.mayweg.net has SRV record 0 100 88
>> server06.intranet.mayweg.net.
>> host -t A server06.intranet.mayweg.net.
>> server06.intranet.mayweg.net has address 192.168.11.250
>>
>> I can resolve the server06.intranet.mayweg.net and intranet.mayweg.net
on
>> all machines, but hostnames of machines I joined to the domain are not
>> resolvable from other domain members. A linux machine that joined had
the
>> output:
>> Joined 'SERVER13' to realm 'intranet.mayweg.net'
>> DNS update failed!
>>
>> I can get kerberos tickets on all machines, and join the domain using
net
>> ads join from all of them but the ad dc itself.
>> On server06 "net ads join -Uadministrator" returns
>> Failed to join domain: This operation is only allowed for the PDC of
the
>> domain. Maybe this has something to do with the dns updates not
working.
>>
>
> You do not run 'net ads join' on a DC, the provision does it for
you (or
> as in your case, the upgrade procedure)
>
>
>>
>> I'll follow up with version info and configuration files
(interfaces,
>> resolv.conf, hosts, smb.conf, krb5.conf, named.conf).
>> Samba version is 4.1.17, BIND 9.9.5. Unnecessarily I had the MIT
>> implementations of krb5-admin-server and krb5-kdc installed and
configured
>> until I realized Samba4 brings the heimdal implementation of kerberos
with
>> it. I uninstalled the MIT parts afterwards. Configuration files:
>>
>>
>> /etc/network/interfaces:
>> auto lo
>> iface lo inet loopback
>>
>> auto eth0
>> iface eth0 inet static
>> address 192.168.11.250
>> netmask 255.255.255.0
>> network 192.168.11.0
>> broadcast 192.168.11.255
>>
>>
>> /etc/resolv.conf:
>> nameserver 192.168.11.250 #had 127.0.0.1 before with the same error
>> domain intranet.mayweg.net
>>
>>
>> /etc/hosts:
>> 127.0.0.1 localhost localhost.localdomain
>> 192.168.11.250 server06.intranet.mayweg.net server06
>> krb.intranet.mayweg.net kdc.intranet.mayweg.net intranet.mayweg.net
>>
>
> Remove everything from the '192.168.11.250' line from 'krb'
onwards, they
> shouldn't be there.
>
>
>
>> # The following lines are desirable for IPv6 capable hosts
>> ::1 localhost ip6-localhost ip6-loopback
>> ff02::1 ip6-allnodes
>> ff02::2 ip6-allrouters
>>
>>
>> /etc/samba/smb.conf:
>> [global]
>> workgroup = MAYWEG.NET
>> realm = INTRANET.MAYWEG.NET
>> netbios name = SERVER06
>> interfaces = lo, eth0
>> bind interfaces only = Yes
>> server role = active directory domain controller
>> server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
winbind,
>> ntp_signd, kcc, dnsupdate
>> idmap_ldb:use rfc2307 = yes
>> #added after classicupgrade
>> kerberos method = system keytab
>> client ldap sasl wrapping = sign
>> allow dns updates = nonsecure and secure
>> nsupdate command = /usr/bin/nsupdate -g
>> domain logons = yes
>>
>> [netlogon]
>> path = /var/lib/samba/sysvol/intranet.mayweg.net/scripts
>> read only = No
>>
>> [sysvol]
>> path = /var/lib/samba/sysvol
>> read only = No
>>
>>
> remove everything you added to smb.conf
>
> /etc/krb5.conf (copied from /var/lib/samba/private/krb5.conf):
>> [libdefaults]
>> default_realm = INTRANET.MAYWEG.NET
>> dns_lookup_realm = true #changed to true
>> dns_lookup_kdc = true
>>
>> #added after classicupgrade
>>
>> [realms]
>> INTRANET.MAYWEG.NET = {
>> kdc = krb.intranet.mayweg.net
>> admin_server = krb.intranet.mayweg.net
>> default_domain = intranet.mayweg.net
>> }
>>
>> [domain_realm]
>>
>> .intranet.mayweg.net = INTRANET.MAYWEG.NET
>> intranet.mayweg.net = INTRANET.MAYWEG.NET
>>
>> [logging]
>> kdc = FILE:/var/log/kerberos/krb5kdc.log
>> admin_server = FILE:/var/log/kerberos/kadmin.log
>> default = FILE:/var/log/kerberos/krb5lib.log
>>
>>
> Change krb5.conf back to what it was.
>
>
> /etc/bind/named.conf (copied together from the includes...):
>> zone "." {
>> type hint;
>> file "/etc/bind/db.root";
>> };
>> // be authoritative for the localhost forward and reverse zones, and
for
>> // broadcast zones as per RFC 1912
>>
>> zone "localhost" {
>> type master;
>> file "/etc/bind/db.local";
>> };
>>
>> zone "127.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.127";
>> };
>>
>> zone "0.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.0";
>> };
>>
>> zone "255.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.255";
>> };
>> 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";
>> };
>> logging {
>> channel update_debug {
>> file "/var/log/update_debug.log" versions 3
size 100k;
>> severity debug;
>> print-severity yes;
>> print-time yes;
>> };
>> channel security_info {
>> file "/var/log/security_info.log" versions 1
size 100k;
>> severity info;
>> print-severity yes;
>> print-time yes;
>> };
>> channel bind_log {
>> file "/var/log/bind.log" versions 3 size 1m;
>> severity info;
>> print-category yes;
>> print-severity yes;
>> print-time yes;
>> };
>>
>> category default { bind_log; };
>> category lame-servers { null; };
>> category update { update_debug; };
>> category update-security { update_debug; };
>> category security { security_info; };
>> };
>> options {
>> directory "/var/named";
>> recursion yes;
>> dnssec-validation auto;
>> tkey-gssapi-keytab
"/var/lib/samba/private/dns.keytab";
>> auth-nxdomain yes;
>> notify no;
>> empty-zones-enable no;
>> allow-query {
>> 127.0.0.1;
>> 192.168.11.0/24;
>> # add other networks you want to allow to query your DNS
>> };
>> allow-query-cache {
>> 127.0.0.1;
>> 192.168.11.0/24;
>> # add other networks you want to allow to query your DNS
>> };
>> allow-recursion {
>> 192.168.11.0/24;
>> 127.0.0.1;
>> # add other networks you want to allow to do recursive queries
>> };
>> forwarders {
>> # Google public DNS server here - replace with your own if
>> necessary
>> };
>> allow-transfer {
>> # this config is for a single master DNS server
>> none;
>> };
>> };
>>
>> I hope I provided all the necessary information and am grateful for any
>> hints on where to look for a fix to this problem.
>>
>> Greetings,
>> Timo
>>
>
> Finally, was the version of bind you are using configured with dlopen ?
>
> Rowland
>
>
>
sambalist.1.olol13 at spamgourmet.com schrieb am 19.03.2015 09:38:> The error for samba_dnsupdate --all-names remains (btw, without --all-names > it works): > ldb: Destroying timer event 0x233f310 "ltdb_timeout" > ldb: Ending timer event 0x1d2bb70 "ltdb_callback" > Traceback (most recent call last): > File "/usr/sbin/samba_dnsupdate", line 612, in <module> > get_credentials(lp) > File "/usr/sbin/samba_dnsupdate", line 125, in get_credentials > raise e > RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot > contact any KDC for requested realm)Obviously the first thing to do is to get Kerberos working. See: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO Go to 'Testing Kerberos'. Check the hosts file, too, as it is needed to resolve the name of the KDC. HTH - Peter
Timo Altun
2015-Mar-19 09:30 UTC
[Samba] Fwd: Dynamic DNS Updates not working. samba_dnsupdate : (sambalist: message 3 of 20) RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
Thank you for the answers Peter and Rowland and sorry to everybody for the
spam...switched to another e-mail address and hope my messages will arrive
only once from now on.
As I wrote in my first mail, Kerberos does work. I can successfully request
and list a ticket on the AC DC.
kinit administrator at INTRANET.MAYWEG.NET
Password for administrator at INTRANET.MAYWEG.NET:
klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator at INTRANET.MAYWEG.NET
Valid starting Expires Service principal
19.03.2015 10:05:48 19.03.2015 20:05:48 krbtgt/
INTRANET.MAYWEG.NET at INTRANET.MAYWEG.NET
renew until 20.03.2015 10:05:46
Rowland, I did not change the DNS-Server to bind, I removed smb.conf and
/var/lib/samba/private and redid the classicupgrade with the
--dns-backend=BIND9_DLZ
option.
Timo
Good morning!
First of all thanks Rowland for the fast answer yesterday! I realized that
samba-technical might have been the wrong mailing list and switched it to
the normal samba users list (hopefully it worked, as it does get a bit
confusing with spamgourmets sendto addresses!). Unfortunately the problem
with samba_dnsupdate remains after the changes.
I did changed the smb.conf, krb5.conf, and hosts as requested. I am pretty
new to both samba and linux and added most lines that looked promising from
other threads. Expected the DC itself to be able to join the domain
(again), as I remembered it to be possible after a classicupgrade with the
samba internal dns.
Regarding BIND, I am using version 9.9 on Debian Jessie and read it is not
necessary to build it yourself and configure it with dlopen (see here
<https://lists.samba.org/archive/samba/2015-January/188049.html>).
The driver is supposedly included and also seems to load alright:
named -g -c /etc/bind/named.conf -u named -d3 2>&1 | grep -i dlz
19-Mar-2015 08:05:26.396 Registering DLZ_dlopen driver
19-Mar-2015 08:05:26.396 Registering SDLZ driver 'dlopen'
19-Mar-2015 08:05:26.396 Registering DLZ driver 'dlopen'
19-Mar-2015 08:05:26.405 Loading SDLZ driver.
19-Mar-2015 08:05:26.646 samba_dlz: started for DN
DC=intranet,DC=mayweg,DC=net
19-Mar-2015 08:05:26.646 SDLZ driver loaded successfully.
19-Mar-2015 08:05:26.646 DLZ driver loaded successfully.
19-Mar-2015 08:05:26.646 samba_dlz: starting configure
19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone
'11.168.192.in-addr.arpa'
19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone '
intranet.mayweg.net'
19-Mar-2015 08:05:26.648 samba_dlz: configured writeable zone '_
msdcs.intranet.mayweg.net'
The error for samba_dnsupdate --all-names remains (btw, without --all-names
it works):
ldb: Destroying timer event 0x233f310 "ltdb_timeout"
ldb: Ending timer event 0x1d2bb70 "ltdb_callback"
Traceback (most recent call last):
File "/usr/sbin/samba_dnsupdate", line 612, in <module>
get_credentials(lp)
File "/usr/sbin/samba_dnsupdate", line 125, in get_credentials
raise e
RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot
contact any KDC for requested realm)
Again, I'm very grateful for any hints where the problem could originate
from.
Greetings,
Timo
On 18 March 2015 at 19:57, Rowland Penny - repenny241155 at gmail.com <
sambalist.olol13.20ba6b371d.repenny241155#gmail.com at ob.0sg.net> wrote:
> On 18/03/15 17:05, sambalist.1.olol13 at spamgourmet.com wrote:
>
>> Hello,
>>
>> I am trying to upgrade an Samba 3 DC to an Samba 4 AD DC with BIND9_DLZ
>> backend on Debian Jessie. Before I was using tinydns on a different
server>> and want to replace it with BIND.
>> I'm trying this with copies of virtual machines in a different
subnet
(The>> debian jessie AD DC and DNS, a Win7 Client used for RSAT tools
>> administration, a debian squeezy file server that is part of the domain
>> and
>> an xp client).
>> For the most part the new configuration is working, a lot thanks to
>> exploration of the wiki and the mailing list archives, but I cannot
>> resolve
>> the hostnames of domain members and think it is because dynamic DNS
>> updates
>> through kerberos aren't working.
>>
>> When I try "samba_dnsupdate --verbose --all-names", I get the
following
>> error:
>> ldb: Destroying timer event 0x1a42d10 "ltdb_timeout"
>> ldb: Ending timer event 0x1859f30 "ltdb_callback"
>> Traceback (most recent call last):
>> File "/usr/sbin/samba_dnsupdate", line 612, in
<module>
>> get_credentials(lp)
>> File "/usr/sbin/samba_dnsupdate", line 125, in
get_credentials
>> raise e
>> RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot
>> contact any KDC for requested realm)
>>
>> I can join the domain with windows & linux machines and administer
it and
>> the dns server with RSAT tools. Neither SELinux nor Apparmor are
present.
>>
>> The dns tests from the samba ad dc howto
>>
<https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO#BIND9_DNS_Backend>
>> were
>> all successful:
>> host -t SRV _ldap._tcp.intranet.mayweg.net.
>> _ldap._tcp.intranet.mayweg.net has SRV record 0 100 389
>> server06.intranet.mayweg.net.
>> host -t SRV _kerberos._udp.intranet.mayweg.net.
>> _kerberos._udp.intranet.mayweg.net has SRV record 0 100 88
>> server06.intranet.mayweg.net.
>> host -t A server06.intranet.mayweg.net.
>> server06.intranet.mayweg.net has address 192.168.11.250
>>
>> I can resolve the server06.intranet.mayweg.net and intranet.mayweg.net
on
>> all machines, but hostnames of machines I joined to the domain are not
>> resolvable from other domain members. A linux machine that joined had
the
>> output:
>> Joined 'SERVER13' to realm 'intranet.mayweg.net'
>> DNS update failed!
>>
>> I can get kerberos tickets on all machines, and join the domain using
net
>> ads join from all of them but the ad dc itself.
>> On server06 "net ads join -Uadministrator" returns
>> Failed to join domain: This operation is only allowed for the PDC of
the
>> domain. Maybe this has something to do with the dns updates not
working.
>>
>
> You do not run 'net ads join' on a DC, the provision does it for
you (or
> as in your case, the upgrade procedure)
>
>
>>
>> I'll follow up with version info and configuration files
(interfaces,
>> resolv.conf, hosts, smb.conf, krb5.conf, named.conf).
>> Samba version is 4.1.17, BIND 9.9.5. Unnecessarily I had the MIT
>> implementations of krb5-admin-server and krb5-kdc installed and
configured>> until I realized Samba4 brings the heimdal implementation of kerberos
with>> it. I uninstalled the MIT parts afterwards. Configuration files:
>>
>>
>> /etc/network/interfaces:
>> auto lo
>> iface lo inet loopback
>>
>> auto eth0
>> iface eth0 inet static
>> address 192.168.11.250
>> netmask 255.255.255.0
>> network 192.168.11.0
>> broadcast 192.168.11.255
>>
>>
>> /etc/resolv.conf:
>> nameserver 192.168.11.250 #had 127.0.0.1 before with the same error
>> domain intranet.mayweg.net
>>
>>
>> /etc/hosts:
>> 127.0.0.1 localhost localhost.localdomain
>> 192.168.11.250 server06.intranet.mayweg.net server06
>> krb.intranet.mayweg.net kdc.intranet.mayweg.net intranet.mayweg.net
>>
>
> Remove everything from the '192.168.11.250' line from 'krb'
onwards, they
> shouldn't be there.
>
>
>
>> # The following lines are desirable for IPv6 capable hosts
>> ::1 localhost ip6-localhost ip6-loopback
>> ff02::1 ip6-allnodes
>> ff02::2 ip6-allrouters
>>
>>
>> /etc/samba/smb.conf:
>> [global]
>> workgroup = MAYWEG.NET
>> realm = INTRANET.MAYWEG.NET
>> netbios name = SERVER06
>> interfaces = lo, eth0
>> bind interfaces only = Yes
>> server role = active directory domain controller
>> server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl,
winbind,>> ntp_signd, kcc, dnsupdate
>> idmap_ldb:use rfc2307 = yes
>> #added after classicupgrade
>> kerberos method = system keytab
>> client ldap sasl wrapping = sign
>> allow dns updates = nonsecure and secure
>> nsupdate command = /usr/bin/nsupdate -g
>> domain logons = yes
>>
>> [netlogon]
>> path = /var/lib/samba/sysvol/intranet.mayweg.net/scripts
>> read only = No
>>
>> [sysvol]
>> path = /var/lib/samba/sysvol
>> read only = No
>>
>>
> remove everything you added to smb.conf
>
> /etc/krb5.conf (copied from /var/lib/samba/private/krb5.conf):
>> [libdefaults]
>> default_realm = INTRANET.MAYWEG.NET
>> dns_lookup_realm = true #changed to true
>> dns_lookup_kdc = true
>>
>> #added after classicupgrade
>>
>> [realms]
>> INTRANET.MAYWEG.NET = {
>> kdc = krb.intranet.mayweg.net
>> admin_server = krb.intranet.mayweg.net
>> default_domain = intranet.mayweg.net
>> }
>>
>> [domain_realm]
>>
>> .intranet.mayweg.net = INTRANET.MAYWEG.NET
>> intranet.mayweg.net = INTRANET.MAYWEG.NET
>>
>> [logging]
>> kdc = FILE:/var/log/kerberos/krb5kdc.log
>> admin_server = FILE:/var/log/kerberos/kadmin.log
>> default = FILE:/var/log/kerberos/krb5lib.log
>>
>>
> Change krb5.conf back to what it was.
>
>
> /etc/bind/named.conf (copied together from the includes...):
>> zone "." {
>> type hint;
>> file "/etc/bind/db.root";
>> };
>> // be authoritative for the localhost forward and reverse zones, and
for
>> // broadcast zones as per RFC 1912
>>
>> zone "localhost" {
>> type master;
>> file "/etc/bind/db.local";
>> };
>>
>> zone "127.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.127";
>> };
>>
>> zone "0.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.0";
>> };
>>
>> zone "255.in-addr.arpa" {
>> type master;
>> file "/etc/bind/db.255";
>> };
>> 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";
>> };
>> logging {
>> channel update_debug {
>> file "/var/log/update_debug.log" versions 3
size 100k;
>> severity debug;
>> print-severity yes;
>> print-time yes;
>> };
>> channel security_info {
>> file "/var/log/security_info.log" versions 1
size 100k;
>> severity info;
>> print-severity yes;
>> print-time yes;
>> };
>> channel bind_log {
>> file "/var/log/bind.log" versions 3 size 1m;
>> severity info;
>> print-category yes;
>> print-severity yes;
>> print-time yes;
>> };
>>
>> category default { bind_log; };
>> category lame-servers { null; };
>> category update { update_debug; };
>> category update-security { update_debug; };
>> category security { security_info; };
>> };
>> options {
>> directory "/var/named";
>> recursion yes;
>> dnssec-validation auto;
>> tkey-gssapi-keytab
"/var/lib/samba/private/dns.keytab";
>> auth-nxdomain yes;
>> notify no;
>> empty-zones-enable no;
>> allow-query {
>> 127.0.0.1;
>> 192.168.11.0/24;
>> # add other networks you want to allow to query your DNS
>> };
>> allow-query-cache {
>> 127.0.0.1;
>> 192.168.11.0/24;
>> # add other networks you want to allow to query your DNS
>> };
>> allow-recursion {
>> 192.168.11.0/24;
>> 127.0.0.1;
>> # add other networks you want to allow to do recursive queries
>> };
>> forwarders {
>> # Google public DNS server here - replace with your own if
>> necessary
>> };
>> allow-transfer {
>> # this config is for a single master DNS server
>> none;
>> };
>> };
>>
>> I hope I provided all the necessary information and am grateful for any
>> hints on where to look for a fix to this problem.
>>
>> Greetings,
>> Timo
>>
>
> Finally, was the version of bind you are using configured with dlopen ?
>
> Rowland
>
>
>
--
To unsubscribe from this list go to the following URL and read the
instructions: https://lists.samba.org/mailman/options/samba
Rowland Penny
2015-Mar-19 09:51 UTC
[Samba] Fwd: Dynamic DNS Updates not working. samba_dnsupdate : (sambalist: message 3 of 20) RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
On 19/03/15 09:30, Timo Altun wrote:> Thank you for the answers Peter and Rowland and sorry to everybody for the > spam...switched to another e-mail address and hope my messages will arrive > only once from now on. > As I wrote in my first mail, Kerberos does work. I can successfully request > and list a ticket on the AC DC. > > kinit administrator at INTRANET.MAYWEG.NET > Password for administrator at INTRANET.MAYWEG.NET: > > klist > Ticket cache: FILE:/tmp/krb5cc_0 > Default principal: administrator at INTRANET.MAYWEG.NET > Valid starting Expires Service principal > 19.03.2015 10:05:48 19.03.2015 20:05:48 krbtgt/ > INTRANET.MAYWEG.NET at INTRANET.MAYWEG.NET > renew until 20.03.2015 10:05:46 > > Rowland, I did not change the DNS-Server to bind, I removed smb.conf and > /var/lib/samba/private and redid the classicupgrade with the > --dns-backend=BIND9_DLZ > option. > > Timo > > > > Good morning! > > First of all thanks Rowland for the fast answer yesterday! I realized that > samba-technical might have been the wrong mailing list and switched it to > the normal samba users list (hopefully it worked, as it does get a bit > confusing with spamgourmets sendto addresses!). Unfortunately the problem > with samba_dnsupdate remains after the changes. > I did changed the smb.conf, krb5.conf, and hosts as requested. I am pretty > new to both samba and linux and added most lines that looked promising from > other threads. Expected the DC itself to be able to join the domain > (again), as I remembered it to be possible after a classicupgrade with the > samba internal dns. > > Regarding BIND, I am using version 9.9 on Debian Jessie and read it is not > necessary to build it yourself and configure it with dlopen (see here > <https://lists.samba.org/archive/samba/2015-January/188049.html>). > The driver is supposedly included and also seems to load alright: > > named -g -c /etc/bind/named.conf -u named -d3 2>&1 | grep -i dlz > 19-Mar-2015 08:05:26.396 Registering DLZ_dlopen driver > 19-Mar-2015 08:05:26.396 Registering SDLZ driver 'dlopen' > 19-Mar-2015 08:05:26.396 Registering DLZ driver 'dlopen' > 19-Mar-2015 08:05:26.405 Loading SDLZ driver. > 19-Mar-2015 08:05:26.646 samba_dlz: started for DN > DC=intranet,DC=mayweg,DC=net > 19-Mar-2015 08:05:26.646 SDLZ driver loaded successfully. > 19-Mar-2015 08:05:26.646 DLZ driver loaded successfully. > 19-Mar-2015 08:05:26.646 samba_dlz: starting configure > 19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone > '11.168.192.in-addr.arpa' > 19-Mar-2015 08:05:26.647 samba_dlz: configured writeable zone ' > intranet.mayweg.net' > 19-Mar-2015 08:05:26.648 samba_dlz: configured writeable zone '_ > msdcs.intranet.mayweg.net' > > > The error for samba_dnsupdate --all-names remains (btw, without --all-names > it works): > ldb: Destroying timer event 0x233f310 "ltdb_timeout" > ldb: Ending timer event 0x1d2bb70 "ltdb_callback" > Traceback (most recent call last): > File "/usr/sbin/samba_dnsupdate", line 612, in <module> > get_credentials(lp) > File "/usr/sbin/samba_dnsupdate", line 125, in get_credentials > raise e > RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot > contact any KDC for requested realm) > > > Again, I'm very grateful for any hints where the problem could originate > from. > Greetings, > Timo > > > On 18 March 2015 at 19:57, Rowland Penny - repenny241155 at gmail.com < > sambalist.olol13.20ba6b371d.repenny241155#gmail.com at ob.0sg.net> wrote: > >> On 18/03/15 17:05, sambalist.1.olol13 at spamgourmet.com wrote: >> >>> Hello, >>> >>> I am trying to upgrade an Samba 3 DC to an Samba 4 AD DC with BIND9_DLZ >>> backend on Debian Jessie. Before I was using tinydns on a different > server >>> and want to replace it with BIND. >>> I'm trying this with copies of virtual machines in a different subnet > (The >>> debian jessie AD DC and DNS, a Win7 Client used for RSAT tools >>> administration, a debian squeezy file server that is part of the domain >>> and >>> an xp client). >>> For the most part the new configuration is working, a lot thanks to >>> exploration of the wiki and the mailing list archives, but I cannot >>> resolve >>> the hostnames of domain members and think it is because dynamic DNS >>> updates >>> through kerberos aren't working. >>> >>> When I try "samba_dnsupdate --verbose --all-names", I get the following >>> error: >>> ldb: Destroying timer event 0x1a42d10 "ltdb_timeout" >>> ldb: Ending timer event 0x1859f30 "ltdb_callback" >>> Traceback (most recent call last): >>> File "/usr/sbin/samba_dnsupdate", line 612, in <module> >>> get_credentials(lp) >>> File "/usr/sbin/samba_dnsupdate", line 125, in get_credentials >>> raise e >>> RuntimeError: kinit for SERVER06$@INTRANET.MAYWEG.NET failed (Cannot >>> contact any KDC for requested realm) >>> >>> I can join the domain with windows & linux machines and administer it and >>> the dns server with RSAT tools. Neither SELinux nor Apparmor are present. >>> >>> The dns tests from the samba ad dc howto >>> <https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO#BIND9_DNS_Backend> >>> were >>> all successful: >>> host -t SRV _ldap._tcp.intranet.mayweg.net. >>> _ldap._tcp.intranet.mayweg.net has SRV record 0 100 389 >>> server06.intranet.mayweg.net. >>> host -t SRV _kerberos._udp.intranet.mayweg.net. >>> _kerberos._udp.intranet.mayweg.net has SRV record 0 100 88 >>> server06.intranet.mayweg.net. >>> host -t A server06.intranet.mayweg.net. >>> server06.intranet.mayweg.net has address 192.168.11.250 >>> >>> I can resolve the server06.intranet.mayweg.net and intranet.mayweg.net on >>> all machines, but hostnames of machines I joined to the domain are not >>> resolvable from other domain members. A linux machine that joined had the >>> output: >>> Joined 'SERVER13' to realm 'intranet.mayweg.net' >>> DNS update failed! >>> >>> I can get kerberos tickets on all machines, and join the domain using net >>> ads join from all of them but the ad dc itself. >>> On server06 "net ads join -Uadministrator" returns >>> Failed to join domain: This operation is only allowed for the PDC of the >>> domain. Maybe this has something to do with the dns updates not working. >>> >> You do not run 'net ads join' on a DC, the provision does it for you (or >> as in your case, the upgrade procedure) >> >> >>> I'll follow up with version info and configuration files (interfaces, >>> resolv.conf, hosts, smb.conf, krb5.conf, named.conf). >>> Samba version is 4.1.17, BIND 9.9.5. Unnecessarily I had the MIT >>> implementations of krb5-admin-server and krb5-kdc installed and > configured >>> until I realized Samba4 brings the heimdal implementation of kerberos > with >>> it. I uninstalled the MIT parts afterwards. Configuration files: >>> >>> >>> /etc/network/interfaces: >>> auto lo >>> iface lo inet loopback >>> >>> auto eth0 >>> iface eth0 inet static >>> address 192.168.11.250 >>> netmask 255.255.255.0 >>> network 192.168.11.0 >>> broadcast 192.168.11.255 >>> >>> >>> /etc/resolv.conf: >>> nameserver 192.168.11.250 #had 127.0.0.1 before with the same error >>> domain intranet.mayweg.net >>> >>> >>> /etc/hosts: >>> 127.0.0.1 localhost localhost.localdomain >>> 192.168.11.250 server06.intranet.mayweg.net server06 >>> krb.intranet.mayweg.net kdc.intranet.mayweg.net intranet.mayweg.net >>> >> Remove everything from the '192.168.11.250' line from 'krb' onwards, they >> shouldn't be there. >> >> >> >>> # The following lines are desirable for IPv6 capable hosts >>> ::1 localhost ip6-localhost ip6-loopback >>> ff02::1 ip6-allnodes >>> ff02::2 ip6-allrouters >>> >>> >>> /etc/samba/smb.conf: >>> [global] >>> workgroup = MAYWEG.NET >>> realm = INTRANET.MAYWEG.NET >>> netbios name = SERVER06 >>> interfaces = lo, eth0 >>> bind interfaces only = Yes >>> server role = active directory domain controller >>> server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, > winbind, >>> ntp_signd, kcc, dnsupdate >>> idmap_ldb:use rfc2307 = yes >>> #added after classicupgrade >>> kerberos method = system keytab >>> client ldap sasl wrapping = sign >>> allow dns updates = nonsecure and secure >>> nsupdate command = /usr/bin/nsupdate -g >>> domain logons = yes >>> >>> [netlogon] >>> path = /var/lib/samba/sysvol/intranet.mayweg.net/scripts >>> read only = No >>> >>> [sysvol] >>> path = /var/lib/samba/sysvol >>> read only = No >>> >>> >> remove everything you added to smb.conf >> >> /etc/krb5.conf (copied from /var/lib/samba/private/krb5.conf): >>> [libdefaults] >>> default_realm = INTRANET.MAYWEG.NET >>> dns_lookup_realm = true #changed to true >>> dns_lookup_kdc = true >>> >>> #added after classicupgrade >>> >>> [realms] >>> INTRANET.MAYWEG.NET = { >>> kdc = krb.intranet.mayweg.net >>> admin_server = krb.intranet.mayweg.net >>> default_domain = intranet.mayweg.net >>> } >>> >>> [domain_realm] >>> >>> .intranet.mayweg.net = INTRANET.MAYWEG.NET >>> intranet.mayweg.net = INTRANET.MAYWEG.NET >>> >>> [logging] >>> kdc = FILE:/var/log/kerberos/krb5kdc.log >>> admin_server = FILE:/var/log/kerberos/kadmin.log >>> default = FILE:/var/log/kerberos/krb5lib.log >>> >>> >> Change krb5.conf back to what it was. >> >> >> /etc/bind/named.conf (copied together from the includes...): >>> zone "." { >>> type hint; >>> file "/etc/bind/db.root"; >>> }; >>> // be authoritative for the localhost forward and reverse zones, and for >>> // broadcast zones as per RFC 1912 >>> >>> zone "localhost" { >>> type master; >>> file "/etc/bind/db.local"; >>> }; >>> >>> zone "127.in-addr.arpa" { >>> type master; >>> file "/etc/bind/db.127"; >>> }; >>> >>> zone "0.in-addr.arpa" { >>> type master; >>> file "/etc/bind/db.0"; >>> }; >>> >>> zone "255.in-addr.arpa" { >>> type master; >>> file "/etc/bind/db.255"; >>> }; >>> 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"; >>> }; >>> logging { >>> channel update_debug { >>> file "/var/log/update_debug.log" versions 3 size 100k; >>> severity debug; >>> print-severity yes; >>> print-time yes; >>> }; >>> channel security_info { >>> file "/var/log/security_info.log" versions 1 size 100k; >>> severity info; >>> print-severity yes; >>> print-time yes; >>> }; >>> channel bind_log { >>> file "/var/log/bind.log" versions 3 size 1m; >>> severity info; >>> print-category yes; >>> print-severity yes; >>> print-time yes; >>> }; >>> >>> category default { bind_log; }; >>> category lame-servers { null; }; >>> category update { update_debug; }; >>> category update-security { update_debug; }; >>> category security { security_info; }; >>> }; >>> options { >>> directory "/var/named"; >>> recursion yes; >>> dnssec-validation auto; >>> tkey-gssapi-keytab "/var/lib/samba/private/dns.keytab"; >>> auth-nxdomain yes; >>> notify no; >>> empty-zones-enable no; >>> allow-query { >>> 127.0.0.1; >>> 192.168.11.0/24; >>> # add other networks you want to allow to query your DNS >>> }; >>> allow-query-cache { >>> 127.0.0.1; >>> 192.168.11.0/24; >>> # add other networks you want to allow to query your DNS >>> }; >>> allow-recursion { >>> 192.168.11.0/24; >>> 127.0.0.1; >>> # add other networks you want to allow to do recursive queries >>> }; >>> forwarders { >>> # Google public DNS server here - replace with your own if >>> necessary >>> }; >>> allow-transfer { >>> # this config is for a single master DNS server >>> none; >>> }; >>> }; >>> >>> I hope I provided all the necessary information and am grateful for any >>> hints on where to look for a fix to this problem. >>> >>> Greetings, >>> Timo >>> >> Finally, was the version of bind you are using configured with dlopen ? >> >> Rowland >> >> >> > -- > To unsubscribe from this list go to the following URL and read the > instructions: https://lists.samba.org/mailman/options/sambaOK, I am using Debian wheezy with samba and bind9 from backports. These are the conf files I use (comments removed to save space) : /etc/resolv.conf search example.com nameserver 192.168.0.3 <-- this my second DC nameserver 127.0.0.1 /etc/krb5.conf [libdefaults] default_realm = EXAMPLE.COM dns_lookup_realm = false dns_lookup_kdc = true /etc/samba/smb.conf # Global parameters [global] workgroup = EXAMPLE realm = example.com netbios name = DC01 server role = active directory domain controller server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate idmap_ldb:use rfc2307 = yes [netlogon] path = /var/lib/samba/sysvol/example.com/scripts read only = No [sysvol] path = /var/lib/samba/sysvol read only = No /etc/bind/named.conf 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"; /etc/bind/named.conf.options options { directory "/var/cache/bind"; forwarders { 8.8.8.8; 8.8.4.4; }; dnssec-validation no; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; tkey-gssapi-keytab "/var/lib/samba/private/dns.keytab"; }; /var/lib/samba/private/named.conf dlz "AD DNS Zone" { # For BIND 9.9.0 database "dlopen /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_9.so"; }; These work for me :-) Rowland
Peter Serbe
2015-Mar-19 14:31 UTC
[Samba] Fwd: Dynamic DNS Updates not working. samba_dnsupdate : (sambalist: message 3 of 20) RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
Timo Altun schrieb am 19.03.2015 10:30:> As I wrote in my first mail, Kerberos does work. I can successfully request > and list a ticket on the AC DC.OK, then next things, which come to my mind are: is the keytab, you set in named.conf.options readable for the user, under which bind is run. Then, is the /etc/bind/namedb writable for bind. And in the end, it might be a screwed up installation. I had troubles with dynamic updates a long time ago, when it turned out, that I screwed something up during the installation. HTH - Peter
Apparently Analagous Threads
- Fwd: Dynamic DNS Updates not working. samba_dnsupdate : RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
- Dynamic DNS Updates not working. samba_dnsupdate : RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
- Fwd: Dynamic DNS Updates not working. samba_dnsupdate : (sambalist: message 3 of 20) RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
- Fwd: Dynamic DNS Updates not working. samba_dnsupdate : (sambalist: message 3 of 20) RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)
- Fwd: Dynamic DNS Updates not working. samba_dnsupdate : (sambalist: message 3 of 20) RuntimeError: (sambalist: to exclusive) kinit for [DC@Realm] failed (Cannot contact any KDC for requested realm)