[Samba] Upgrading BIND DNS Backend

[Anantha Raghava]

Hi,

I am trying to upgrade frm INTERNAL DNS to BIND_DLZ.

I followed the procedure given in 
https://wiki.samba.org/index.php/Changing_the_DNS_Back_End_of_a_Samba_AD_DC 
and https://wiki.samba.org/index.php/BIND9_DLZ_DNS_Back_End.

When I start the BIND Service, it fails with an error. In journalctl -xe 
we come to know that named service is unbale to open dlz_bind9_9.so file.

Full error message is as below.

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

[root at dc private]# systemctl start named
Job for named.service failed because the control process exited with 
error code. See "systemctl status named.service" and "journalctl -xe" 
for details.
[root at dc private]# journalctl -xe
May 11 20:03:41 dc.exza.local named[2506]: 
----------------------------------------------------
May 11 20:03:41 dc.exza.local named[2506]: adjusted limit on open files 
from 4096 to 1048576
May 11 20:03:41 dc.exza.local named[2506]: found 2 CPUs, using 2 worker 
threads
May 11 20:03:41 dc.exza.local named[2506]: using 2 UDP listeners per 
interface
May 11 20:03:41 dc.exza.local named[2506]: using up to 4096 sockets
May 11 20:03:41 dc.exza.local named[2506]: loading configuration from 
'/etc/named.conf'
May 11 20:03:41 dc.exza.local named[2506]: reading built-in trusted keys 
from file '/etc/named.iscdlv.key'
May 11 20:03:41 dc.exza.local named[2506]: initializing GeoIP Country 
(IPv4) (type 1) DB
May 11 20:03:41 dc.exza.local named[2506]: GEO-106FREE 20160607 Build 1 
Copyright (c) 2016 MaxMind
May 11 20:03:41 dc.exza.local named[2506]: initializing GeoIP Country 
(IPv6) (type 12) DB
May 11 20:03:41 dc.exza.local named[2506]: GEO-106FREE 20160607 Build 1 Copy
May 11 20:03:41 dc.exza.local named[2506]: GeoIP City (IPv4) (type 2) DB 
not available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP City (IPv4) (type 6) DB 
not available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP City (IPv6) (type 30) 
DB not available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP City (IPv6) (type 31) 
DB not available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP Region (type 3) DB not 
available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP Region (type 7) DB not 
available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP ISP (type 4) DB not 
available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP Org (type 5) DB not 
available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP AS (type 9) DB not 
available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP Domain (type 11) DB not 
available
May 11 20:03:41 dc.exza.local named[2506]: GeoIP NetSpeed (type 10) DB 
not available
May 11 20:03:41 dc.exza.local named[2506]: using default UDP/IPv4 port 
range: [1024, 65535]
May 11 20:03:41 dc.exza.local named[2506]: using default UDP/IPv6 port 
range: [1024, 65535]
May 11 20:03:41 dc.exza.local named[2506]: listening on IPv4 interface 
lo, 127.0.0.1#53
May 11 20:03:41 dc.exza.local named[2506]: listening on IPv6 interface 
lo, ::1#53
May 11 20:03:41 dc.exza.local named[2506]: generating session key for 
dynamic DNS
May 11 20:03:41 dc.exza.local named[2506]: sizing zone task pool based 
on 6 zones
May 11 20:03:41 dc.exza.local named[2506]: Loading 'AD DNS Zone' using 
driver dlopen
May 11 20:03:41 dc.exza.local named[2506]: dlz_dlopen failed to open 
library '/usr/local/samba/lib/bind9/dlz_bind9_9.so' - 
/usr/local/samba/lib/bind9/dlz_bind9_9.so: fail
May 11 20:03:41 dc.exza.local named[2506]: dlz_dlopen of 'AD DNS Zone' 
failed
May 11 20:03:41 dc.exza.local kernel: named[2508]: segfault at a8 ip 
00007f1d03a7d1d9 sp 00007f1cfee7b320 error 4 in named[7f1d03a0e000+87000]
May 11 20:03:41 dc.exza.local systemd[1]: named.service: control process 
exited, code=exited status=1
May 11 20:03:41 dc.exza.local systemd[1]: Failed to start Berkeley 
Internet Name Domain (DNS).
-- Subject: Unit named.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit named.service has failed.
-- 
-- The result is failed.
-----------------------------------------------

Any suggestions to start BIND9_DLZ properly?

-- 

Thanks & Regards,


Anantha Raghava


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