BIND

BIND, named, or bind9 is a DNS server.

managed-keys-zone ./IN: loading from master file managed-keys.bind failed: file not found

Change permissions on all files in /etc/bind to bind:bind. This step may resolve the problem right away.

Create /etc/bind/managed-keys.bind: touch /etc/bind/managed-keys.bind

Modify /etc/bind/named.conf:

include "/etc/bind/named.conf.options";
include "/etc/bind/named.conf.local";
include "/etc/bind/named.conf.default-zones";
include "/etc/bind/bind.keys";

The last entry should have been missing. After adding it, the problem should be resolved.

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