Renaud Deraison wrote:
>
> use_kernel_congestion_detection = yes
> reduce_connections_on_congestion = yes
>
>   
Sorry - I forgot to mention I don't think this is a congestion problem. 
This is a "lite" scan - just hitting the NetBIOS ports and doing 
Registry and WMI checks. So I don't think it's generating a lot of 
traffic (?but what would I know). But I am getting this issue where a 
given remote LAN now produces a report containing a mixture of 
"untrustworthy" host data and "good" host data - even though all the 
hosts are in the same domain,etc.

I've just checked the nessus.messages file again - and I am actually 
getting "killing" errors (some webpage on Google told me to look for 
"killed" - but I should have been looking for "killing"). They are all 
against smb_hotfixes.nasl

e.g.

[Thu Aug 21 20:34:49 2008][19296] user apache : launching 
smb_hotfixes.nasl against 10.1.82.45 [73]
[Thu Aug 21 20:41:50 2008][19296] smb_hotfixes.nasl (pid 73) is slow to 
finish - killing it
[Thu Aug 21 20:41:50 2008][19296] user apache : launching 
smb_nt_ms04-008.nasl against 10.1.82.45 [74]

That's a seven minute timeout - that's quite long. Hmmm, the remote site 
this scan is to do with is a T1 low-latency (US to US) link - this can't 
be congestion or WAN delays...?

Any other ideas? Now I'm thinking this isn't a network problem, but 
rather that some machines are in "a weird state"? I have just 
successfully (under Windows) used "Manage Computer" and a WMI tool 
against this box - so as far as Windows is concerned, it is "perfectly 
fine". This is now sounding like Nessus isn't doing the same tricks 
Windows can do - and is basically failing against some boxes?

-- 
Cheers

Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1


-- 
Cheers

Jason Haar
Information Security Manager, Trimble Navigation Ltd.
Phone: +64 3 9635 377 Fax: +64 3 9635 417
PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1

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