Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.
Next-Generation Intrusion Prevention System (NGIPS) - Cisco Firepower NGIPS (Next-Generation IPS) provides contextual awareness, security intelligence, and advanced threat protection against attacks and malware.
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.
snort - Snort is a free and open source network intrusion prevention system.
DNSFilter - DNSFilter offers DNS-Based Content Filtering & Threat Protection.
Suricata - Suricata is a high performance Network IDS, IPS and Network Security Monitoring engine.