Instalar pihole + unbound + dnsperf
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pi@raspberrypi:~ $ sudo apt-get update
pi@raspberrypi:~ $ sudo apt upgrade

[ref]: https://electrondust.com/2017/11/25/setting-raspberry-pi-wifi-static-ip-raspbian-stretch-lite/
pi@raspberrypi:~ $ vi /etc/dhcpcd.conf
...
interface wlan0
static ip_address=192.168.1.89/24
static routers=192.168.1.1
static domain_name_servers=8.8.8.8

[ref]: https://naseros.com/2020/01/19/instalacion-de-pi-hole-en-raspberry-pi/
root@raspberrypi:~# apt-get install curl dnsutils
root@raspberrypi:~# sudo curl -sSL https://install.pi-hole.net | bash
root@raspberrypi:~# pihole -a -p
<raspberry>

[ref]: https://docs.pi-hole.net/guides/unbound/
root@raspberrypi:~# apt install unbound
root@raspberrypi:~# wget -O root.hints https://www.internic.net/domain/named.root
root@raspberrypi:~# sudo mv root.hints /var/lib/unbound/
root@raspberrypi:~# vi /etc/unbound/unbound.conf.d/pi-hole.conf
server:
    # If no logfile is specified, syslog is used
    # logfile: "/var/log/unbound/unbound.log"
    verbosity: 0

    interface: 0.0.0.0
    port: 5335
    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!
    root-hints: "/var/lib/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
	
root@raspberrypi:~# apt install snapd
root@raspberrypi:~# reboot
...
root@raspberrypi:~# snap install dnsperf --beta --devmode
root@raspberrypi:~# wget https://www.dns-oarc.net/files/dnsperf/data/queryfile-example-10million-201202.gz
root@raspberrypi:~# gunzip queryfile-example-10million-201202.gz