RE: Ping Tool

["Amin Tora" <atora () EPLUS com>]

Nmap may !seem! slow due to three things: 

        1. you are trying to resolve reverse dns 
        2. you are using a slow scan method
        3. the system you are using is SLOW

* You can turn off dns resolution via the  -n  option

* You can scan at different speeds using the  -T  option going from SLOW
to FAST {Paranoid|Sneaky|Polite|Normal|Aggressive|Insane}

To scan at the fastest speed possible, your command would like so:

nmap -sP -T Insane -n x.x.x.x/8



Amin Tora, CISSP, CHSP
Security Consultant
ePlus Technology Inc.
13595 Dulles Technology Drive
Herndon, VA 20171
office: 703-793-1330
cell: 703-675-0738
web: http://www.eplustechnology.com
email: atora-at-eplus.com

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-----Original Message-----
From: Ms.Sonika Malhotra [mailto:sonikam () magnum barc ernet in] 
Sent: Monday, May 17, 2004 7:10 AM
To: security-basics () securityfocus com
Subject: Ping Tool

Hello List,

I want to know if some tool is available for generating the Host-list in
the LAN(nmap takes a long time for Class-A range.) .The extra feature I
want is this tool should be capable of updating the list when new hosts
come up in the LAN , and should delete the Hosts from the list which are
not responding for a long time.

How do I write such a utility, any pointers ? or any links for any such
tool already available.

Thankyou and regards
Sonika


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Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off
any course! All of our class sizes are guaranteed to be 10 students or less
to facilitate one-on-one interaction with one of our expert instructors.
Attend a course taught by an expert instructor with years of in-the-field
pen testing experience in our state of the art hacking lab. Master the skills
of an Ethical Hacker to better assess the security of your organization.
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