Informational

Update Pi-hole:

#pihole -up

Update Gravity:

#pihole -g

Rate-limiting can easily be disabling:

RATE_LIMIT=0/0 in /etc/pihole/pihole-FTL.conf

Rate-limiting of 1 query per hour, the option should look like
RATE_LIMIT=1/3600

Syslog configuration example:

log-facility=local2 in /etc/dnsmasq.d/01-pihole.conf