Penetration Testing mailing list archives
Re: Nmap/netwag problem.
From: Martin Mačok <martin.macok () underground cz>
Date: Thu, 11 Aug 2005 13:49:48 +0200
On Wed, Aug 10, 2005 at 02:25:18PM +0200, Kaj Huisman wrote:
Anyway. a 'full connect' scan (one that performs the complete three-way handshake will _always_ (?) be the most reliable.
You mean connect() scan? No, with connect() API you can't properly distinguish between RST (closed port) and ICMP Port Unreachable (filtered port) for example [RFC 1122] ...
My sugeestion is to perform either a nmap connect scan on the ports from both results or to manually telnet to the ports and see the response.
Regarding Nmap, the fastest and most reliable scanning technique is SYN scan, not a connect() scan ... Martin Mačok ICT Security Consultant ------------------------------------------------------------------------------ FREE WHITE PAPER - Wireless LAN Security: What Hackers Know That You Don't Learn the hacker's secrets that compromise wireless LANs. Secure your WLAN by understanding these threats, available hacking tools and proven countermeasures. Defend your WLAN against man-in-the-Middle attacks and session hijacking, denial-of-service, rogue access points, identity thefts and MAC spoofing. Request your complimentary white paper at: http://www.securityfocus.com/sponsor/AirDefense_pen-test_050801 -------------------------------------------------------------------------------
Current thread:
- Re: Nmap/netwag problem., (continued)
- Re: Nmap/netwag problem. Kaj Huisman (Aug 10)
- Re: Nmap/netwag problem. Pete Herzog (Aug 10)
- Re: Nmap/netwag problem. Bill Weiss (Aug 11)
- Re: Nmap/netwag problem. Kaj Huisman (Aug 11)
- Re: Nmap/netwag problem. Rogan Dawes (Aug 11)
- Re: Nmap/netwag problem. Pete Herzog (Aug 11)
- Re: Nmap/netwag problem. Irene Abezgauz (Aug 11)
- Re: Nmap/netwag problem. Daniel Miessler (Aug 12)
- Re: Nmap/netwag problem. Pete Herzog (Aug 12)
- Re: Nmap/netwag problem. Pete Herzog (Aug 10)
- Re: Nmap/netwag problem. Kaj Huisman (Aug 10)
- RE: Nmap/netwag problem. Omar Herrera (Aug 11)
- RE: Nmap/netwag problem. Irene Abezgauz (Aug 11)
- Re: Nmap/netwag problem. Kaj Huisman (Aug 12)
- Re: Nmap/netwag problem. Fyodor (Aug 12)
- Re: Nmap/netwag problem. ilaiy (Aug 12)