GIAC
GPEN · Question #458
While scanning a remote system that is running a web server with a UDP scan and monitoring the scan with a sniffer, you notice that the target is responding with ICMP Port Unreachable only once a…
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Vulnerability Discovery & Scanning
Question
While scanning a remote system that is running a web server with a UDP scan and monitoring the scan with a sniffer, you notice that the target is responding with ICMP Port Unreachable only once a second What operating system is the target likely running?
Options
- ALinux
- BWindows
- COpenBSD
- DMac OS X
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Topics
#OS fingerprinting#UDP scanning#ICMP rate limiting#Nmap