From: Paul J Docherty (PJD@portcullis-security.com)
Date: Mon Aug 15 2005 - 07:07:58 EDT
<snip>
# nmap -P0 -p80,99,113 scanme.nmap.org
As you can see above, Nmap starts by sending a SYN probe back to each
of the three ports. Port 113 replies with the RA (RST/ACK) flags and
thus is listed by Nmap as closed. Port 80 returns SA (SYN/ACK) and so
is listed as open. Port 99 does not reply, so Nmap retransmits after
1.1 seconds. There is still no reply, so Nmap lists the port as
filtered.
</snip>
Hey Fyodor
When are you expecting to release with --reason ?
<Shamelessly recruiting>
We are looking for experienced penetration testers to come and join us.
If you are interested in permanent positions with one of the UK's
leading independent security companies doing interesting and varied
stuff drop me a line off-list.
</Shamelessly recruiting>
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