Nmap Development mailing list archives
Re: max-scan-delay not honored?
From: Fyodor <fyodor () insecure org>
Date: Fri, 10 Mar 2006 16:07:44 -0800
On Fri, Mar 10, 2006 at 11:50:08PM +0100, Filippo Solinas wrote:
On Fri, 10 Mar 2006 10:44:29 -0800, Fyodor wrote: Moreover, with "--max-parallelism 2", --max-scan-delay 100 seems to be not honored as well:
The --scan-delay is a special delay Nmap enforces between packets when it detects certain kinds of rate limiting. It probably isn't detecting that sort of rate limiting, so the extra scan delay is 0. Thus setting the maximum scan delay to 10 has no effect. See http://www.insecure.org/nmap/man/man-performance.html . The reason the scan is going so slowly is entirely because of your "--max-parallelism 2" option. But note that the scan is going twice as fast as in your last mail where you set it to "--max_parallelism 1". Want the scan to go faster? Specify a higher --max-parallelism or don't specify it at all. You are giving Nmap options that say "go extraordinarily slow", and then complaining that Nmap isn't fast enough for you. One feature I am considering that you may like is allowing you to specify an exact number of packets that Nmap should try to send each second, rather than having Nmap use its own smarts. If you haven't taken the Nmap 2006 user survey yet, you can vote for or against this and other features at http://www.insecure.org/nmap/survey.html . I hope this helps, -Fyodor _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev
Current thread:
- max-scan-delay not honored? Filippo Solinas (Mar 10)
- Re: max-scan-delay not honored? Fyodor (Mar 10)
- Re: max-scan-delay not honored? Fyodor (Mar 10)
- Re: max-scan-delay not honored? Filippo Solinas (Mar 10)
- Re: max-scan-delay not honored? Fyodor (Mar 10)
- Re: max-scan-delay not honored? Filippo Solinas (Mar 11)
- Re: max-scan-delay not honored? Fyodor (Mar 10)