Ethical Hacking Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package. | Computer Forensics Training at InfoSec Institute Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. |

| Subject: | Strange NMAP 4.0 Behavior |
|---|---|
| Date: | Mon, 20 Feb 2006 19:54:58 -0500 |
Derek,
The default scan when not specified is -sS -F. If you only wanted to
do an ICMP Echo Ping Scan and no more, use -sP -PE.
So while there is no bug, I looked over the man pages and nmap's
defaults are not explicitly detailed in any section.
For the novice, it is not clear what actions the command "nmap
scanme.insecure.org" will invoke. Maybe we (the nmap community) can
work on documenting that better, especially with the recent additions
of things like nmap's own ARP stack, and DNS resolution.
Thanks for the feedback.
kx
On 2/20/06, Derek Nash <ddnash@gmail.com> wrote:
I was just noticing when running an ICMP Echo scan (-PE) in NMAP version 4.00 that it seems to be including a SYN scan on all Service ports (-sS -F) scan as part of this scan type. I have witnessed this on 2 separate installs and systems, I couldn't find documentation that states this is a new default behavior. Has anyone else witnessed this strange behavior? If this is a new default behavior does anyone know if this behavior is defeatable? This seems like a bug to me, but I thought I would post here prior to submitting a bug report.
------------------------------------------------------------------------------ Audit your website security with Acunetix Web Vulnerability Scanner: Hackers are concentrating their efforts on attacking applications on your website. Up to 75% of cyber attacks are launched on shopping carts, forms, login pages, dynamic content etc. Firewalls, SSL and locked-down servers are futile against web application hacking. Check your website for vulnerabilities to SQL injection, Cross site scripting and other web attacks before hackers do! Download Trial at: http://www.securityfocus.com/sponsor/pen-test_050831 -------------------------------------------------------------------------------
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | flaky network devices, and how to solve the problem, Byron Sonne |
|---|---|
| Next by Date: | Re: Strange NMAP 4.0 Behavior, Fabien Degouet |
| Previous by Thread: | Re: Strange NMAP 4.0 Behavior, Bernhard Mitterer |
| Next by Thread: | RE: Strange NMAP 4.0 Behavior, Monroe, Bruce |
| Indexes: | [Date] [Thread] [Top] [All Lists] |