Penetration Testing mailing list archives
Re: Problem with NMap Scans
From: Shaon Diwakar <shaon.diwakar () yahoo com au>
Date: Mon, 28 Jan 2008 15:16:27 -0800 (PST)
Hi whitehat, What other options are you using? Are you performing a full port scan (i.e. all 65535 ports) - UDP scan normally take a long, long time - but this is because UDP is connectionless. The docs have a very good explanation of why this technique takes a long time: http://nmap.org/man/man-port-scanning-techniques.html There may also be other non-nmap related issues going on here, for example a FW in between is doing something funny. Do you have problems using any other portscanner? Cheers, sHz ----- Original Message ---- From: whitehat <whitehaat () gmail com> To: pen-test <pen-test () securityfocus com> Sent: Tuesday, 29 January, 2008 4:22:38 AM Subject: Problem with NMap Scans Hi List, I'm using NMap for port scanning and I never faced any problems. But in recent times when I scanned some systems it was showing nearly 8.00 hrs for SYN Scan and 19.00 hrs for UDP Scan to complete. I tried with '-T4' option which is aggressive in nature but it is of no use. Can anybody help what is going on there????? Because we cannot wait up to 8.00 or 19.00 hrs if the Green Zone timings are on. Thanks in advance!!!!!!!!!!!!!! Cheers.......... :-) ------------------------------------------------------------------------ This list is sponsored by: Cenzic Need to secure your web apps NOW? Cenzic finds more, "real" vulnerabilities fast. Click to try it, buy it or download a solution FREE today! http://www.cenzic.com/downloads ------------------------------------------------------------------------ ------------------------------------------------------------------------ This list is sponsored by: Cenzic Need to secure your web apps NOW? Cenzic finds more, "real" vulnerabilities fast. Click to try it, buy it or download a solution FREE today! http://www.cenzic.com/downloads ------------------------------------------------------------------------
Current thread:
- Problem with NMap Scans whitehat (Jan 28)
- RE: Problem with NMap Scans Strykar (Jan 30)
- <Possible follow-ups>
- Re: Problem with NMap Scans Shaon Diwakar (Jan 29)
- Re: Problem with NMap Scans whitehat (Jan 29)