Force Pi-Hole SafeSearch

06-kids.conf

# This DNSMasq configuration forces restrictions to be enabled for YouTube, Bing, and Google Search
# for more information see: https://learn.akamai.com/en-us/webhelp/enterprise-threat-protector/enterprise-threat-protector/GUID-0FCB1221-60DC-4A01-9B09-0C25B16BF3D0.html
# or see: https://support.google.com/youtube/answer/6214622?hl=en
# Put this file in /etc/dnsmasq.d/

## YouTube
cname=www.youtube.com,restrictmoderate.youtube.com
cname=m.youtube.com,restrictmoderate.youtube.com
cname=youtube.googleapis.com,restrictmoderate.youtube.com
cname=youtubei.googleapis.com,restrictmoderate.youtube.com
cname=www.youtube-nocookie.com,restrictmoderate.youtube.com

## Bing
cname=www.bing.com,strict.bing.com

## Google Search
cname=www.google.com,forcesafesearch.google.com

hosts

# Append this to /etc/hosts
216.239.38.120	restrict.youtube.com
216.239.38.119	restrictmoderate.youtube.com
204.79.197.220	strict.bing.com
216.239.38.120	forcesafesearch.google.com

update_hosts

#!/usr/bin/env bash
# Put this in /usr/local/bin/ and chmod +x
update_ip_address() {
file=/etc/hosts
if [[ $(grep $1 $file) ]]; then
	IP=$(dig +noall +answer +short @8.8.8.8 $1 | \
		grep -oE '((1?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.){3}((1?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]))')
	sed -i "/$1/ s/.*/$IP\t$1/g" $file
fi
}

update_ip_address restrict.youtube.com
update_ip_address restrictmoderate.youtube.com
update_ip_address strict.bing.com
update_ip_address forcesafesearch.google.com

This update_hosts script has stopped working for me. I get an error that says "update-hosts.sh: 5: update-hosts.sh: [[: not found" for each attempted update. It seems to have something to do with the grep command. I have tested the dig on its own and it seems to work, but get nothing back from the grep. That command is beyond me.

I don't have my Pi-Hole running anymore, I've been doing something with unbound instead. I'll need to set up a test environment to figure out what the issue is. May be a week or so before I can get around to that.