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Nmap Development: Different scan results depending on whether root or unprivileged

Different scan results depending on whether root or unprivileged

From: Tim Edwards <tkedwards_at_fastmail.com.au>
Date: Wed, 10 Jan 2007 15:31:05 +0000

Hi,

I'm trying to work out the root cause of a problem we're having where
nmap reports all possible IPs in a network as having active hosts when
run as root:
sudo /usr/bin/nmap -sT -T4 -p T:22,23,80,135,513,514,U:161
xxx.xxx.xxx.0/24
(reports all 256 possible IPs as having active hosts)

nmap -sT -T4 -p T:22,23,80,135,513,514,U:161 xxx.xxx.xxx.0/24
(correctly reports only what's there)

Does anyone know why these results would be different?

Thanks

Tim Edwards

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