KHOST is no longer. I decided to go a different approach and attempt something new and modern. I am experimenting with IOS profiles that benefits both stock and rooted devices by using the MDM Apple profile feature. My repo and the depiction page here will remain up for archive and educational purposes for a short period in time before I delete it from the internet forever.
As for other operating systems: Security is increasing, the methods are always changing and changing for the better. Encrypted DNS is the best way to fight intrusion. Encrypted DNS with adblocking built in is 100% better than editing host files and safer. NextDNS is highly recommended and easy to use. Use this in combination with VPN and firewall ( including VPN that also has DNS domain blocking ). DNSCRYPT Can be used for easily implement an encrypted DNS via application instead of manually changing. It is available for different operating systems. More can be found on my serious website pertaining to security here - digitalinfosec.weebly.com/
A paid VPN may also contain encrypted DNS that can block advertisements, malware, phishing or anything else that is dangerous. AirVPN is one of many good VPN that has this function and the blocklists are great! You can click the banner or link for a referral on this service. Contact for a trial version and I can provide an opvn file to use with OpenVPN!