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First of all, tell us, which version of nmap you are using. Are you
running nmap from Windows or Linux or *NIX like machine !? LIBPCAP
version!? If *NIX like, maybe your fw has countermesures agains SYN attack
(2 SYNs in 100ms restriction outbound) against a specific port. Then the
kernel version. It can be everything. Let us know, how your system looks
like and maybe we will give you an correct answer for your problem.
Kind regards,
Arturas Zalenekas
Network Security Engineer and Analyst
Hello,
I just used nmap to scan all open Ports on my Watchguard X Firewall. When
I use -sT nmap finds all open Ports.When I use -sS nmap does not find some
Ports (HTTP-80 and HTTPS-443).
Could anybody please explain to me, why nmap can not find those open
ports?
Best Regards
-Benjamin Wagrocki-
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This list is sponsored by: Norwich University
EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The NSA has designated Norwich University a center of Academic Excellence
in Information Security. Our program offers unparalleled Infosec management
education and the case study affords you unmatched consulting experience.
Using interactive e-Learning technology, you can earn this esteemed degree,
without disrupting your career or home life.
http://www.msia.norwich.edu/secfocus
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