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RE: Scan Issue

Subject: RE: Scan Issue
Date: Thu, 23 Jun 2005 15:11:26 -0400
But I stopped the scan after almost 15 hours: do you think if I would have
waited longer, the test could have been completed??!

Also, if I deselect Nmap, how do I cover the UDP port scanning

Thanks,

Bilal
-----Original Message-----
From: Michel Arboi [mailto:mikhail@nessus.org] 
Sent: Thursday, June 23, 2005 11:10 AM
To: Nasrallah, Bilal [CAR:1229:EXCH]
Cc: Nessus@list.nessus.org
Subject: Re: Scan Issue


On Thu Jun 23 2005 at 16:59, Bilal Nasrallah wrote:

I am running a scan against a network device and have noticed that 
when I select Nmap (NASL Wrapper) from Scan Options (Port scanner), 
the scan hangs.

IMHO, it did not hang, it is just awfully slow.

The options that I have selected under Port scanner are: Nmap, Exclude 
toplevel domain wildcard host, Nessus TCP scanner, and Ping the remote 
host. When I deselected the Nmap option, the scan worked just fine. 
Any thought would highly appreciated.

You found the solution by yourself: deselect Nmap.

I suspect that the timing options are badly broken in the last version(s). A
couple of days ago, I scanned a friend machine. 
nessus_tcp_scanner was four time quicker: 
380 s with nessus_tcp_scanner, 1500+ s with nmap -T 4 ("aggressive"
timing) 

Maybe we should add --host_timeout when we launch Nmap?
e.g., if thourough_tests are disabled, we give it only half an hour to
perform the job. Anybody against this?

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