Security Basics
nmap root vs user question Oct 04 2013 09:29PM
ToddAndMargo (ToddAndMargo zoho com)
Hi All,

"#" is my "root" prompt and "$" is my user prompt.

Question: why does namp sometimes work as root
and not as a user? Why no warning that a command
has to be run as root?

This works as root:
# nmap -p T:5020,5900
Starting Nmap 6.40 ( ) at 2013-10-04 14:25 PDT
Nmap scan report for
Host is up (0.00063s latency).
5020/tcp filtered zenginkyo-1
5900/tcp filtered vnc

Same command does not work as a user:
$ nmap -p T:5020,5900
Starting Nmap 6.40 ( ) at 2013-10-04 14:25 PDT
Note: Host seems down. If it is really up, but blocking our
ping probes, try -Pn

Many thanks,

Computers are like air conditioners.
They malfunction when you open windows


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