Number of zones has increased by updating BIND package

Solution Unverified - Updated -

Issue

  • "rndc status" command showed the number of zones had increased by updating BIND package to the version 9.11.4.
  • Why did the number increase without adding new zones?

bind-9.9.4-74.el7_6.1

version: 9.9.4-RedHat-9.9.4-74.el7_6.1 () <id:8f9657aa>
CPUs found: 4
worker threads: 4
UDP listeners per interface: 4
number of zones: 101
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
recursive clients: 0/0/1000
tcp clients: 3/150
server is up and running

bind-9.11.4-16.P2.el7_8.6

version: BIND 9.11.4-P2-RedHat-9.11.4-16.P2.el7_8.6 (Extended Support Version) <id:7107deb>
running on rhel7dns.example.com: Linux x86_64 3.10.0-1062.12.1.el7.x86_64 #1 SMP Thu Dec 12 06:44:49 EST 2019
boot time: Tue, 21 Jul 2020 06:55:02 GMT
last configured: Tue, 21 Jul 2020 06:55:03 GMT
configuration file: /etc/named.conf (/var/named/chroot/etc/named.conf)
CPUs found: 4
worker threads: 4
UDP listeners per interface: 4
number of zones: 103 (97 automatic)
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
recursive clients: 0/900/1000
tcp clients: 3/150
server is up and running

Environment

  • Red Hat Enterprise Linux 7
  • The version before update: BIND 9.9.4
  • The version after update: BIND 9.11.4

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