pfSense is an open source firewall computer software distribution based on FreeBSD. It is offering features often only found in expensive commercial firewalls with web interface. It can be installed on a physical computer or a virtual machine to make a dedicated firewall for your Home/Office network. When SafeSearch is on, Google Search engine acts as an automated filter of pornography and potentially offensive content(video, images, site links) from Google Search result pages, along with results that might link to explicit content.
How to enable safesearch
1. Enable DNS Forwarder
To enable DNS forwarder Go to Service > DNS Forwarder > tick on “Enable DNS forwarder” and than Save.
2. Add a Host Overrides
To add a Host Overrides click on add button below the Host Override section.
3. Ping the forcesafesearch.google.com and note down the ip and put this ip in next step’s ip Address field.
Type ping forcesafesearch.google.com in command prompt.
4. Add entry for www.google .com or your country google domain(For India www.google.co.in)
Fill the details
Domain: google.com or your country domain of google
IP: IP result from step 3
and than click on save.
Add more Host entry for other domain of google like google.co.in, google.uk etc