K9 Web Protection is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The best Linux alternative is NextDNS, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to K9 Web Protection and nine of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to K9 Web Protection are Pi-hole, LeechBlock, Plucky and Squid.
NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids — on all devices and on all networks.
Blocks ads for all connected devices at the DNS layer without client setup. Provides web control, in-app ad and tracker blocking, DHCP and API support, regex filtering, privacy modes, audit logs, and long-term query analytics for network management.
LeechBlock is a simple free productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
Genius concept! And possible without external help. Can be self-administrated.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator.
CleanBrowsing is a family and kid-safe way to browse the web without surprises. It Automatically blocks adult content, while still allowing Google, Youtube, Bing and the core of the web to load safely. Easy setup in 5 minutes with nothing to install.
NxFilter is a freeware web filtering software controlling user activity on Internet. You can monitor Internet usage in your network and block user request for websites with NxFilter. It offers many features like Active Directory integration, User or Group based policy...
SafeDNS provides sophisticated cloud-based and software solutions for web content filtering which increase users' safety online by blocking botnets, malware and phishing resources, filter out most advertising and content users consider inappropriate.
A freeware web filtering application with HTTP/S filtering and time controls for all platforms Linux/Windows/Mac/ARM (Raspberry Pi).
United States
South Korea
Pi-hole does not have content filtering like K9 Web Protection did where you could have it scan the contents of a web page for a keyword and block if it matched.