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NxFilter 4.7.1.7, published by Jahastech, is a DNS-level web-security application whose primary purpose is to prevent endpoints from resolving domains that host malware, phishing, adult, or otherwise objectionable content. Operating as a lightweight forwarding proxy, the program sits between internal clients and upstream resolvers, inspecting every DNS request against administrator-defined policies before returning an IP or a block-page redirect. Because filtering occurs at the resolution stage, no client-side software is required; any device that obtains its DNS settings from the NxFilter server—Windows laptops, BYOD phones, IoT hardware, or guest equipment—immediately inherits the protection profile. Typical deployments place the service on a small Windows VM at the network edge, although it can also be run on existing domain controllers or DMZ hosts. Schools use it to enforce CIPA compliance by denying access to adult material and anonymizing VPNs, while small businesses leverage its category-based blacklists to reduce drive-by infections and limit recreational browsing during work hours. MSPs appreciate the multi-tenant dashboard that lets one appliance serve dozens of customer policies, each with unique block pages, time-of-day rules, and whitelist overrides. Logging is comprehensive: every queried domain, matched rule, and resulting action is stored in an embedded database that can be searched by user, IP, or threat type, giving incident-response teams a clear audit trail. The single-version release stream (currently 4.7.1.7) is updated incrementally, ensuring that fresh threat intelligence and emerging category definitions are applied without major reinstallation. NxFilter is available for free on get.nero.com, with downloads delivered through trusted Windows package sources such as winget, guaranteeing the latest build and supporting batch installation alongside other applications.
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