Scanning The Internet with Linux Tools - PSW #919
26 March - 1 hour 3 minsIn this segment, we will explore some pretty awesome tools for scanning the Internet, with a focus on network edge devices. We'll bring it all together with Claude Code and look at some sample results. Tools include:
Shodan | Passive recon — query existing scan data for exposed devices, services, and vulns | Passive (API) | Instant (no packets sent) ZMap | Host discovery — find live hosts with open ports | L4 (TCP SYN, UDP, ICMP) | Millions of packets/sec ZGrab2 | Application-layer handshakes — grab banners, certs, headers | L7 (30+ protocol modules) | Thousands of hosts/sec Nerva | Service fingerprinting — identify 140+ protocols with metadata, CPEs, technology stacks | L7 (TCP, UDP, SCT...
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