Re: Nmap Stopped Working

[Daniel Miller <bonsaiviking () gmail com>]

Emily,

Thanks for your bug report. Replies inline below:

On Sat, May 10, 2014 at 9:39 PM, Emily Ann <emilyanncr () gmail com> wrote:

> Hi.  I regularly run nmap off my Windows 8.2 machine and have never
> experienced a problem.  I ran several today. After successfully completing
> over 2 dozen without issue, I recieved the following error from my last
> scan:
>
> Starting Nmap 6.46 ( http://nmap.org ) at 2014-05-10 19:24 US Mountain
> Standard Time
> NSE: Loaded 118 scripts for scanning.
> NSE: Script Pre-scanning.
> Initiating Ping Scan at 19:24
> Only ethernet devices can be used for raw scans on Windows, and
> "ppp0" is not an ethernet device. Use the --unprivileged option
> for this scan.
> QUITTING!
>
> So I ran another scan on a website I've already successfully scanned today
> and received the same error again. I've tried scanning several more that
> I've previously scanned successfully and received the same results. Nothing
> has been updated or touched on my computer.  It was literally working min
> then throwing errors the next.

Can you try running the commands below and provide output (redact IP
addresses if you wish):

nmap --iflist

nmap --route-dst scanme.nmap.org

You can modify that last command to use some IP address that you know is
causing problems.


> Also, why am I never able to use ncrack successfully?  People make it sound
> as if password cracking using software tools like ncrack, brutus, THC, is
> super easy but in all the tests I've fun I've not come back with one
> possible password? So frustrating.

Online password cracking can be frustrating. I'm sorry to say that Ncrack
is not currently maintained or supported, but it should still work for many
services. You may just be attacking accounts that have strong passwords.

Dan
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