Bug Report from www.isc.org:

Name: Arpit Jain
Email: arpit.jain9@wipro.com
Software Version: BIND 9.11.0
OS: Red Hat Enterprise Linux Server release 6.5 (Santiago)
Subject:Bind can not start when using LDAP as a dynamic back-end for bind 9.11.


Bug Detail
===========
Hello,

We are trying to use LDAP as a dynamic back-end for bind 9.11.
The LDAP server is at IP: 10.61.216.47 and bind is installed on 10.61.12.130.
We are getting the following error while starting named process:


Feb 28 09:44:13 vmx0130 named[7383]: starting BIND 9.11.0-P3 <id:4801fbc>
Feb 28 09:44:13 vmx0130 named[7383]: running on Linux x86_64 2.6.32-431.75.1.el6.x86_64 #1 SMP Mon Oct 24 16:39:06 EDT 2016
Feb 28 09:44:13 vmx0130 named[7383]: built with '--prefix=/opt/af' '--sysconfdir=/etc/opt/af' '--with-openssl=no'
Feb 28 09:44:13 vmx0130 named[7383]: running as: named -c /etc/opt/af/named.conf
Feb 28 09:44:13 vmx0130 named[7383]: ----------------------------------------------------
Feb 28 09:44:13 vmx0130 named[7383]: BIND 9 is maintained by Internet Systems Consortium,
Feb 28 09:44:13 vmx0130 named[7383]: Inc. (ISC), a non-profit 501(c)(3) public-benefit
Feb 28 09:44:13 vmx0130 named[7383]: corporation.  Support and training for BIND 9 are
Feb 28 09:44:13 vmx0130 named[7383]: available at https://www.isc.org/support
Feb 28 09:44:13 vmx0130 named[7383]: ----------------------------------------------------
Feb 28 09:44:13 vmx0130 named[7383]: adjusted limit on open files from 65536 to 1048576
Feb 28 09:44:13 vmx0130 named[7383]: found 4 CPUs, using 4 worker threads
Feb 28 09:44:13 vmx0130 named[7383]: using 3 UDP listeners per interface
Feb 28 09:44:13 vmx0130 named[7383]: using up to 4096 sockets
Feb 28 09:44:13 vmx0130 named[7383]: loading configuration from '/etc/opt/af/named.conf'
Feb 28 09:44:13 vmx0130 named[7383]: using default UDP/IPv4 port range: [32768, 61000]
Feb 28 09:44:13 vmx0130 named[7383]: using default UDP/IPv6 port range: [32768, 61000]
Feb 28 09:44:13 vmx0130 named[7383]: listening on IPv6 interfaces, port 12010
Feb 28 09:44:13 vmx0130 named[7383]: listening on IPv4 interface lo, 127.0.0.1#12010
Feb 28 09:44:13 vmx0130 named[7383]: generating session key for dynamic DNS
Feb 28 09:44:13 vmx0130 named[7383]: sizing zone task pool based on 0 zones
Feb 28 09:44:13 vmx0130 named[7383]: 'max-cache-size 90%' - setting to 14356MB (out of 15951MB)
Feb 28 09:44:13 vmx0130 named[7383]: the key 'rndc-key' is too short to be secure
Feb 28 09:44:13 vmx0130 named[7383]: set up managed keys zone for view _default, file 'managed-keys.bind'
Feb 28 09:44:13 vmx0130 named[7383]: loading DynDB instance 'my_db_name' driver '/usr/lib64/bind/ldap.so'
Feb 28 09:44:13 vmx0130 named[7383]: failed to dynamically load instance 'my_db_name' driver '/usr/lib64/bind/ldap.so': /usr/lib64/bind/ldap.so: undefined symbol: cfg_parse_buffer (failure)
Feb 28 09:44:13 vmx0130 named[7383]: dynamic database 'my_db_name' configuration failed: failure
Feb 28 09:44:13 vmx0130 named[7383]: loading configuration: failure
Feb 28 09:44:13 vmx0130 named[7383]: exiting (due to fatal error)



Also, the named.conf file is as follows:

masters theMains port 53 {
         10.61.12.130;
         127.0.0.1; #Used to fool named to allow notifies from localhost (that is the AFRouter)
};

acl theMains {
         10.61.12.130;
};

acl theAssistants {
         10.61.12.130;
};

acl theAdmins {
         10.61.12.130;
};

acl theAllServers {
         theMains;
         theAssistants;
         theAdmins;
         localhost;
};

options {
         directory "/var/opt/af/named";
         pid-file "/var/opt/af/run/named.pid";
         allow-transfer { theAllServers; };
         recursion yes;
         allow-query { any; };
         zone-statistics no;
         notify yes;
         max-journal-size 1048576;
         port 12010;
         listen-on port 12010 { 127.0.0.1; };
         also-notify {
                 10.61.12.130 port 53;
         };
};

dyndb my_db_name "/usr/lib64/bind/ldap.so"{
                arg uri "ldap://10.61.216.47";
                arg "base cn=dns, ou=Daemons, dc=ete.ka.sw.ericsson, dc=se";
                arg auth_method "none";
};

logging {
        channel default_debug {
                file "data/named.run";
                severity dynamic;
         };
};

controls {
         inet 127.0.0.1 allow { localhost; theMains; theAdmins; } keys { "rndc-key";};
};

include "/etc/opt/af/rndc.key";

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