server:
# If no logfile is specified, syslog is used
# logfile: /var/log/unbound/unbound.log
verbosity: 0
 
access-control: 172.16.0.0/12 allow
access-control: 127.0.0.0/8 allow
access-control: 10.0.0.0/8 allow
access-control: 192.168.0.0/16 allow
interface: 0.0.0.0
port: 5053
do-ip4: yes
do-udp: yes
do-tcp: yes
 
# May be set to yes if you have IPv6 connectivity
do-ip6: no
 
# You want to leave this to no unless you have *native* IPv6. With 6to4 and
# Terredo tunnels your web browser should favor IPv4 for the same reasons
prefer-ip6: no
 
# Use this only when you downloaded the list of primary root servers!
# If you use the default dns-root-data package, unbound will find it automatically
# I have to quote out this root-hints, as it causing container endless restarting for a new installation. You can add root-hints back after first run. 
#root-hints: “/opt/unbound/etc/unbound/root.hints”
 
# Trust glue only if it is within the server's authority
harden-glue: yes
 
# Require DNSSEC data for trust-anchored zones, if such data is absent, the zone becomes BOGUS
harden-dnssec-stripped: yes
 
# Don't use Capitalization randomization as it known to cause DNSSEC issues sometimes
# see https://discourse.pi-hole.net/t/unbound-stubby-or-dnscrypt-proxy/9378 for further details
use-caps-for-id: no
 
# Reduce EDNS reassembly buffer size.
# Suggested by the unbound man page to reduce fragmentation reassembly problems
edns-buffer-size: 1472
 
# Perform prefetching of close to expired message cache entries
# This only applies to domains that have been frequently queried
prefetch: yes
 
# One thread should be sufficient, can be increased on beefy machines. In reality for most users running on small networks or on a single machine, it should be unnecessary to seek performance enhancement by increasing num-threads above 1.
num-threads: 1
 
# Ensure kernel buffer is large enough to not lose messages in traffic spikes
so-rcvbuf: 1m
 
# Ensure privacy of local IP ranges
private-address: 192.168.0.0/16
private-address: 169.254.0.0/16
private-address: 172.16.0.0/12
private-address: 10.0.0.0/8
private-address: fd00::/8
private-address: fe80::/10

#forward-zone:
#	name: "."
#	forward-addr: 1.1.1.1
#	forward-addr: 1.0.0.1
#	forward-addr: 9.9.9.9