Home ▼ Bookkeeping
Online ▼ Security
Audits ▼
Managed
DNS ▼
About
Order
FAQ
Acceptable Use Policy
Dynamic DNS Clients
Configure Domains Dyanmic DNS Update Password Network
Monitor ▼
Enterprise Package
Advanced Package
Standard Package
Free Trial
FAQ
Price/Feature Summary
Order/Renew
Examples
Configure/Status Alert Profiles | |||
Test ID: | 1.3.6.1.4.1.25623.1.0.104158 |
Category: | Nmap NSE net |
Title: | Nmap NSE net: qscan |
Summary: | Repeatedly probe open and/or closed ports on a host to obtain a series of round-;trip time values for each port. These values are used to group collections of ports which;are statistically different from other groups. Ports being in different groups (or;'families') may be due to network mechanisms such as port forwarding to machines behind a;NAT.;; In order to group these ports into different families, some statistical values must;be computed. Among these values are the mean and standard deviation of the round-trip times;for each port. Once all of the times have been recorded and these values have been;computed, the Student's t-test is used to test the statistical significance of the;differences between each port's data. Ports which have round-trip times that are;statistically the same are grouped together in the same family.;; This script is based on Doug Hoyte's Qscan documentation and patches for Nmap.;;SYNTAX:;;delay: Average delay between packet sends. This is a number followed by 'ms' for milliseconds or 's' for seconds. ('m' and 'h' are also supported but are too long for timeouts.) The actual delay will randomly vary between 50% and 150% of the time specified. Default:'200ms'.;;;numtrips: Number of round-trip times to try to get.;;;confidence: Confidence level:'0.75', '0.9', '0.95', '0.975', '0.99', '0.995', or '0.9995'.;;;numclosed: Maximum number of closed ports to probe (default 1). A negative number disables the limit.;;;;numopen: Maximum number of open ports to probe (default 8). A negative number disables the limit. |
Description: | Summary: Repeatedly probe open and/or closed ports on a host to obtain a series of round- trip time values for each port. These values are used to group collections of ports which are statistically different from other groups. Ports being in different groups (or 'families') may be due to network mechanisms such as port forwarding to machines behind a NAT. In order to group these ports into different families, some statistical values must be computed. Among these values are the mean and standard deviation of the round-trip times for each port. Once all of the times have been recorded and these values have been computed, the Student's t-test is used to test the statistical significance of the differences between each port's data. Ports which have round-trip times that are statistically the same are grouped together in the same family. This script is based on Doug Hoyte's Qscan documentation and patches for Nmap. SYNTAX: delay: Average delay between packet sends. This is a number followed by 'ms' for milliseconds or 's' for seconds. ('m' and 'h' are also supported but are too long for timeouts.) The actual delay will randomly vary between 50% and 150% of the time specified. Default:'200ms'. numtrips: Number of round-trip times to try to get. confidence: Confidence level:'0.75', '0.9', '0.95', '0.975', '0.99', '0.995', or '0.9995'. numclosed: Maximum number of closed ports to probe (default 1). A negative number disables the limit. numopen: Maximum number of open ports to probe (default 8). A negative number disables the limit. CVSS Score: 0.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:N |
Copyright | Copyright (C) 2011 NSE-Script: The Nmap Security Scanner; NASL-Wrapper: Greenbone Networks GmbH |
This is only one of 99761 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below. |