samba - May 2019 - dlz_bind9_9.so: failed to map segment from shared object

Hello dear Samba Group

i try to install from repository Samba 4.10 on Ubuntu 19.04 - 64b with 
local BIND-9.11 Server.
Lookop and Revers runnig .... after re-run Bind appair the following 
Error.

 /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so failed to map 
segment from shared object

"named[7726]: dlz_dlopen failed to open library 
'/usr/local/samba/lib/bind9/dlz_bind9_9.so' - 
/usr/local/samba/lib/bind9/dlz_bind9_9.so: failed to map segment from 
shared object"

--

i add group-owner "Bind" to File dlz_bind9_9.so nothing Change.

--

also add:
root at X200:/etc/apparmor.d/local# cat usr.sbin.named

/var/lib/samba/** r,
/var/lib/samba/private/dns.keytab r,
/etc/bind/named.conf r,
/var/lib/samba/private/dns/** rwk,
/etc/samba/smb.conf r,
/var/lib/samba/bind-dns/named.conf r,
/var/lib/samba/bind-dns/** rwk,
/etc/samba/smb.conf r,
/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so rm,

--

and i add the Bind Zone string to /etc/bind/named.conf

dlz "AD DNS Zone" {
    # For BIND 9.11.0
     database "dlopen 
/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so";
};


oot at X200:/etc/apparmor.d/local# systemctl status bind9
● bind9.service - BIND Domain Name Server
   Loaded: loaded (/lib/systemd/system/bind9.service; enabled; vendor 
preset: enabled)
   Active: failed (Result: exit-code) since Sat 2019-05-25 20:24:23 CEST; 
4min 26s ago
     Docs: man:named(8)
  Process: 4629 ExecStart=/usr/sbin/named $OPTIONS (code=exited, 
status=1/FAILURE)

Mai 25 20:24:23 X200 named[4638]: Loading 'AD DNS Zone' using driver 
dlopen
Mai 25 20:24:23 X200 named[4638]: dlz_dlopen failed to open library 
'/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so' - 
/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so: failed to map 
segment from shared object
Mai 25 20:24:23 X200 named[4638]: dlz_dlopen of 'AD DNS Zone' failed
Mai 25 20:24:23 X200 named[4638]: SDLZ driver failed to load.
Mai 25 20:24:23 X200 named[4638]: DLZ driver failed to load.
Mai 25 20:24:23 X200 named[4638]: loading configuration: failure
Mai 25 20:24:23 X200 named[4638]: exiting (due to fatal error)
Mai 25 20:24:23 X200 systemd[1]: bind9.service: Control process exited, 
code=exited, status=1/FAILURE
Mai 25 20:24:23 X200 systemd[1]: bind9.service: Failed with result 
'exit-code'.
Mai 25 20:24:23 X200 systemd[1]: Failed to start BIND Domain Name Server.
root at X200:/etc/apparmor.d/local#

regards
Mauri

On 25/05/2019 19:31, Maurizio Caloro via samba wrote:
> Hello dear Samba Group
>
> i try to install from repository Samba 4.10 on Ubuntu 19.04 - 64b with
> local BIND-9.11 Server.
> Lookop and Revers runnig .... after re-run Bind appair the following
> Error.
>
>   /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so failed to map
> segment from shared object
>
> "named[7726]: dlz_dlopen failed to open library
> '/usr/local/samba/lib/bind9/dlz_bind9_9.so' -
> /usr/local/samba/lib/bind9/dlz_bind9_9.so: failed to map segment from
> shared object"
>
> --
>
> i add group-owner "Bind" to File dlz_bind9_9.so nothing Change.
>
> --
>
> also add:
> root at X200:/etc/apparmor.d/local# cat usr.sbin.named
>
> /var/lib/samba/** r,
> /var/lib/samba/private/dns.keytab r,
> /etc/bind/named.conf r,
> /var/lib/samba/private/dns/** rwk,
> /etc/samba/smb.conf r,
> /var/lib/samba/bind-dns/named.conf r,
> /var/lib/samba/bind-dns/** rwk,
> /etc/samba/smb.conf r,
> /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so rm,
>
> --
>
> and i add the Bind Zone string to /etc/bind/named.conf
>
> dlz "AD DNS Zone" {
>      # For BIND 9.11.0
>       database "dlopen
> /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so";
> };
>
>
> oot at X200:/etc/apparmor.d/local# systemctl status bind9
> ● bind9.service - BIND Domain Name Server
>     Loaded: loaded (/lib/systemd/system/bind9.service; enabled; vendor
> preset: enabled)
>     Active: failed (Result: exit-code) since Sat 2019-05-25 20:24:23 CEST;
> 4min 26s ago
>       Docs: man:named(8)
>    Process: 4629 ExecStart=/usr/sbin/named $OPTIONS (code=exited,
> status=1/FAILURE)
>
> Mai 25 20:24:23 X200 named[4638]: Loading 'AD DNS Zone' using
driver
> dlopen
> Mai 25 20:24:23 X200 named[4638]: dlz_dlopen failed to open library
> '/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so' -
> /usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so: failed to map
> segment from shared object
> Mai 25 20:24:23 X200 named[4638]: dlz_dlopen of 'AD DNS Zone'
failed
> Mai 25 20:24:23 X200 named[4638]: SDLZ driver failed to load.
> Mai 25 20:24:23 X200 named[4638]: DLZ driver failed to load.
> Mai 25 20:24:23 X200 named[4638]: loading configuration: failure
> Mai 25 20:24:23 X200 named[4638]: exiting (due to fatal error)
> Mai 25 20:24:23 X200 systemd[1]: bind9.service: Control process exited,
> code=exited, status=1/FAILURE
> Mai 25 20:24:23 X200 systemd[1]: bind9.service: Failed with result
> 'exit-code'.
> Mai 25 20:24:23 X200 systemd[1]: Failed to start BIND Domain Name Server.
> root at X200:/etc/apparmor.d/local#
>
> regards
> Mauri
>
Was Bind9 installed when you provisioned Samba ?

Why does the first 'named' log line refer to 'dlz_bind9_9.so' ?

Can you post the contents of your named.conf files ?

Rowland

>Was Bind9 installed when you provisioned Samba ?
>Why does the first 'named' log line refer to
'dlz_bind9_9.so' ?
>Can you post the contents of your named.conf files ?
>
>Rowland
>
Hello Rowland

root at X200:/etc/bind# cat "/var/lib/samba/bind-dns/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/bind-dns/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 9.11.x
     database "dlopen 
/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_11.so -d 3";

    # For BIND 9.12.x
    # database "dlopen 
/usr/lib/x86_64-linux-gnu/samba/bind9/dlz_bind9_12.so";
};

Thanks
Mauri