McAfee Network Security Platform - McAfee Network Security Platform guards all your network-connected devices from zero-day and other attacks, with a cost-effective network intrusion prevention system.

Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.

snort - Snort is a free and open source network intrusion prevention system.

WebTitan - WebTitan is an advanced DNS based web content filter and web security layer that blocks malware, ransomware and phishing attempts as well as providing web content control. Cloud and gateway versions available.

FireEye Network Security and Forensics - Network Security and Forensics tools help you detect, monitor and respond to complex cyber attacks and zero-day exploits that bypass signature-based defenses.

DNSFilter - DNSFilter offers DNS-Based Content Filtering & Threat Protection.