[Samba] dlz_bind9_9.so: failed to map segment from shared object

[Maurizio Caloro]

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