Security Basics mailing list archives
Re: Data Interpretation
From: Ansgar Wiechers <bugtraq () planetcobalt net>
Date: Wed, 18 Mar 2009 20:17:06 +0100
On 2009-03-17 David Gillett wrote:
Neither of these things is happening, and nmap can't tell why not. SOMETHING must be listening, since no ICMP packet was received back, but clearly it's not a normal process. The most likely scenario is that a firewall or other security measure is dropping the SYN packet without deigning to respond.
Packet filters aren't really listening (at least not in the TCP sense of the word).
This is, in fact, exactly what you want.
I have to disagree. What you actually want in a situation like that is the firewall to respond with a RST. Regards Ansgar Wiechers -- "The Mac OS X kernel should never panic because, when it does, it seriously inconveniences the user." --http://developer.apple.com/technotes/tn2004/tn2118.html ------------------------------------------------------------------------ This list is sponsored by: InfoSec Institute Find the source of cybercrime! Almost every crime today involves a computer or mobile device. Learn how to become a Computer Forensics Examiner in InfoSec Institute's hands-on Computer Forensics Course. Up to three industry recognized certs available, online computer forensics training available. http://www.infosecinstitute.com/courses/computer_forensics_training.html ------------------------------------------------------------------------
Current thread:
- Data Interpretation Michael Lynch (Mar 16)
- RE: Data Interpretation Javier Becerra (Mar 17)
- Re: Data Interpretation Derek Robson (Mar 17)
- Re: Data Interpretation Ansgar Wiechers (Mar 17)
- RE: Data Interpretation Alexis Grigoriou (Mar 17)
- Re: Data Interpretation τ∂υƒιφ * (Mar 17)
- Re: Data Interpretation Ansgar Wiechers (Mar 17)
- RE: Data Interpretation David Gillett (Mar 17)
- Re: Data Interpretation Ansgar Wiechers (Mar 19)
- RE: Data Interpretation David Gillett (Mar 20)
- Re: Data Interpretation Ansgar Wiechers (Mar 24)
- Re: Data Interpretation David Schekaiban (Mar 17)
- <Possible follow-ups>
- FW: Data Interpretation Murda Mcloud (Mar 19)