mailing list archives
Re: nmap -sT localhost showing ephemeral ports?
From: Kris Katterjohn <katterjohn () gmail com>
Date: Sat, 08 Feb 2014 17:33:35 -0600
On 02/08/2014 04:09 PM, Jacek Wielemborek wrote:
Here's an excerpt from my #nmap IRC log, dates are as in Warsaw local time:
20:17:03 bonsaiviking $ <ketilmore6> turns out the nmap -p 1-65000 was
finding open ports by accident because source port sometimes was equal to
destination port. (birthday paradox)
20:17:07 bonsaiviking $ wtf
20:18:58 bonsaiviking $ confirmed on svn r32703
20:19:31 bonsaiviking $ but only with -sT
What do you think about it?
I didn't feel like reading the IRC log, but this seems reasonable
enough... I fixed this problem in raw scans a long time ago (r4368).
I'm interested to know how many operating systems do this with
connect(). How many different systems have been tested?
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