> -----Original Message-----
> From: Trent (at) yahoo.co (dot) uk [email concealed] [mailto:Trent (at) yahoo.co (dot) uk [email concealed]]
> Sent: Thursday, November 10, 2005 2:13 PM
> To: pen-test (at) securityfocus (dot) com [email concealed]
> Subject: Nmap scanning speed
>
> I have to scan a large network. is it possible to get good
> port scanning speed of over 700 ports per second from nmap?
>
> if so what is the kind of hardware required? hsa
There are many factors that can affect nmap's speed. Turn name resolution
off while scanning (nmap -n), Tune the IP stack, use multiple server grade
nics (I like the Intel PCI-X Gig) and split the scans up per interface (nmap
-e). Also depending on your OS, I'd try to bind each nmap process to a
dedicated processor.
If your using Linux, I'd go with a 2.6x kernel as there are a lot of
improvements in SMP and the network stack.
-Tony
------------------------------------------------------------------------
------
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> -----Original Message-----
> From: Trent (at) yahoo.co (dot) uk [email concealed] [mailto:Trent (at) yahoo.co (dot) uk [email concealed]]
> Sent: Thursday, November 10, 2005 2:13 PM
> To: pen-test (at) securityfocus (dot) com [email concealed]
> Subject: Nmap scanning speed
>
> I have to scan a large network. is it possible to get good
> port scanning speed of over 700 ports per second from nmap?
>
> if so what is the kind of hardware required? hsa
There are many factors that can affect nmap's speed. Turn name resolution
off while scanning (nmap -n), Tune the IP stack, use multiple server grade
nics (I like the Intel PCI-X Gig) and split the scans up per interface (nmap
-e). Also depending on your OS, I'd try to bind each nmap process to a
dedicated processor.
If your using Linux, I'd go with a 2.6x kernel as there are a lot of
improvements in SMP and the network stack.
-Tony
------------------------------------------------------------------------
------
Audit your website security with Acunetix Web Vulnerability Scanner:
Hackers are concentrating their efforts on attacking applications on your
website. Up to 75% of cyber attacks are launched on shopping carts, forms,
login pages, dynamic content etc. Firewalls, SSL and locked-down servers are
futile against web application hacking. Check your website for vulnerabilities
to SQL injection, Cross site scripting and other web attacks before hackers do!
Download Trial at:
http://www.securityfocus.com/sponsor/pen-test_050831
------------------------------------------------------------------------
-------
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