Nmap Development mailing list archives
Re: [Pauldotcom] NMAP Discrepancies
From: Shinnok <admin () shinnok com>
Date: Mon, 6 Jun 2011 15:27:32 +0300
Hi, Don't service probes have a certain timeout for the probe response? If so then big service latency could cause that exact mismatch also. Brief grepping revealed the following in service_scan.h: #define DEFAULT_SERVICEWAITMS 5000 Which should be enough imho, if that's the right timeout value. Does that value get dynamically adjusted along the scan? Another reason could be that some services have resuming state capabilities or don't recover that well upon sudden termination of a connection, which means that the subsequent timely scans would get unexpected results for the service probes. On Thu, Jun 2, 2011 at 1:54 AM, Ron <ron () skullsecurity net> wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Mon, 23 May 2011 08:22:58 -0500 Michael Lubinski <michael.lubinski () gmail com> wrote:Anybody know why NMAP reports differences every so often with the same port. E.g. -3389/tcp open microsoft-rdp Microsoft Terminal Service +3389/tcp open The same scan is run every time, sometimes it displays the service (using the -sV switch) and sometimes not?Cross-posting to Nmap-dev. My suspicion is that the service itself doesn't always return a banner properly. Ron -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iEYEARECAAYFAk3mw0UACgkQ2t2zxlt4g/QDZACeIB3gL2826Ecc8YWLh3rQgmF5 BxoAn3ub5t0QvfVmkF3mFPX8PlK1mdTH =9P+i -----END PGP SIGNATURE----- _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://seclists.org/nmap-dev/
-- Shinnok <http://shinnok.com> _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://seclists.org/nmap-dev/
Current thread:
- Re: [Pauldotcom] NMAP Discrepancies Ron (Jun 01)
- Re: [Pauldotcom] NMAP Discrepancies Shinnok (Jun 06)
- Re: [Pauldotcom] NMAP Discrepancies Shinnok (Jun 06)
- Re: [Pauldotcom] NMAP Discrepancies Michael Lubinski (Jun 06)
- Re: [Pauldotcom] NMAP Discrepancies Shinnok (Jun 21)
- Re: [Pauldotcom] NMAP Discrepancies Michael Lubinski (Jun 21)
- Re: [Pauldotcom] NMAP Discrepancies Shinnok (Jun 21)
- Re: [Pauldotcom] NMAP Discrepancies Shinnok (Jun 06)
- Re: [Pauldotcom] NMAP Discrepancies Shinnok (Jun 06)