Network Scanning
Nessus
Commercial vulnerability scanner widely used in professional assessments.
Authorized testing only. Practice on systems you own, isolated labs, or targets with written permission. Unauthorized access is illegal.
When
Compliance-oriented or broad vuln discovery with polished reporting.
How
Install; update plugins; scan policy; export client-ready reports.
Why
Common in industry; know it even if you prefer open tools.
Commands & usage
# GUI / web UI on port 8834 typically
Commands are educational examples. Adapt hosts, paths, and rates to your authorized scope.
Tags
Related in Network Scanning
Nmap
The definitive network mapper for host discovery, ports, and service/version detection.
Masscan
Asynchronous ultra-fast port scanner for large address spaces.
RustScan
Fast port discovery that pipes open ports into Nmap automatically.
naabu
Fast port scanner from ProjectDiscovery, pipeline-friendly.
AutoRecon
Multi-threaded automatic enumeration of services based on open ports.
Netdiscover
ARP reconnaissance tool for local network host discovery.