Penetration Testing mailing list archives
Re: Discovering Live Hosts
From: "rajat swarup" <rajats () gmail com>
Date: Wed, 8 Aug 2007 02:22:52 -0400
On 8/8/07, rajat swarup <rajats () gmail com> wrote:
On 8/8/07, Nikhil Wagholikar <visitnikhil () gmail com> wrote:Thanks for your suggestion. However as I said earlier that "if suppose SMTP is configured on port 26 instead of traditional port 25, then it would add a twist to this situation". Hence your suggested method would still leave some hosts down. Can you kindly further granularize your suggestion?But it would turn up with port 25 as "closed" which still shows that the host is alive.
If you are trying to reach hosts in a DMZ and the firewall filters everything but port 25 in your given scenario, then I do admit that it'll fail. But, if you want to be so thorough as to not to miss even a single port, then there's no other option but to go with a full port scan. nmap -sS -p- -P0 -iL <file_containing_ips> But generally speaking, DMZs could allow 80, 25 (or in this scenario 26), 443. And if you checked for 80, 443 it would show up as closed...so technically you did enumerate a live host. HTH, -- Rajat Swarup http://rajatswarup.blogspot.com/ ------------------------------------------------------------------------ This list is sponsored by: Cenzic Need to secure your web apps NOW? Cenzic finds more, "real" vulnerabilities fast. Click to try it, buy it or download a solution FREE today! http://www.cenzic.com/downloads ------------------------------------------------------------------------
Current thread:
- Discovering Live Hosts Nikhil Wagholikar (Aug 07)
- Re: Discovering Live Hosts rajat swarup (Aug 07)
- Re: Discovering Live Hosts Nikhil Wagholikar (Aug 07)
- Re: Discovering Live Hosts rajat swarup (Aug 07)
- Re: Discovering Live Hosts rajat swarup (Aug 07)
- Re: Discovering Live Hosts pand0ra (Aug 08)
- Re: Discovering Live Hosts Nikhil Wagholikar (Aug 07)
- Re: Discovering Live Hosts rajat swarup (Aug 07)
- Re: Discovering Live Hosts Jure Krasovic (Aug 07)
- Re: Discovering Live Hosts Nikhil Wagholikar (Aug 07)
- Re: Discovering Live Hosts John M. Martinelli (Aug 07)
- Re: Discovering Live Hosts Vivek P (Aug 08)
- Re: Discovering Live Hosts Lee Lawson (Aug 08)
- Re: Discovering Live Hosts Nikhil Wagholikar (Aug 07)
- Re: Discovering Live Hosts rajat swarup (Aug 08)
- Re: Discovering Live Hosts Sat Jagat Singh (Aug 08)