pf-badhost is a simple, easy to use badhost blocker that uses the power of the pf firewall to block many of the internet's biggest irritants. Annoyances such as SSH and SMTP bruteforcers are largely eliminated. Shodan scans and bots looking for webservers to abuse are stopped dead in their tracks. When used to filter outbound traffic, pf-badhost blocks many seedy, spooky malware containing and/or compromised webhosts.

A script to download lists of bad domains with ads and then block them with unbound resolver.

Unbound-adblock is an easy to use network adblocker. It allows you to block online advertisements network wide and thus block ads on devices that otherwise don't support traditional browser-based adblockers such as uBlock Origin, Adblock Plus etc. I have found unbound-adblock to boost web browsing speed and increase battery life on mobile devices.