Nesca Scanner May 2026

Users can input single IPs, CIDR ranges (e.g., 192.168.1.0/24), or domain lists. Nesca supports "Living Inventory"—importing assets directly from AWS EC2, Azure VMs, or vCenter.

nesca --target 192.168.1.0/24 --expand

Generates nesca_report.html:

Before launching full port scans, Nesca uses a "heartbeat" mechanism. It sends ICMP echo requests, TCP SYN to port 443, and ARP requests (for local networks). This reduces scan time by ignoring dead hosts. nesca scanner

If a technician asks for a "Nesca scan," they are generally requesting one of these four standard scans: Users can input single IPs, CIDR ranges (e

Current limitations:

Future enhancements: