On Wed, Nov 12, 2003 at 02:45:22PM -0500, larosa, vjay wrote:
> unknown protocol running on port 25. This is the banner I get when I telnet
> to port 25.
>
> telnet 10.10.10.25
> Trying 10.10.10.25...
> Connected to 10.10.10.25.
> Escape character is '^]'.
>
> 220 mail.vj.com ESMTP Sendmail 8.9.3/8.9.3; Mon, 10 Nov 2003 19:45:33 -0500
> (EST)
>
Is there any delay between the time you see " Escape character is '^]'."
and the time you actually see the banner ?
It could simply be a story of reverse DNS lookup taking time and
preventing the scan.
-- Renaud