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List:       nessus
Subject:    Re: scanning through firewall
From:       pipe () hongkong ! com
Date:       2000-10-20 2:22:54
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I've tried the similar action to scan DMZ outside a firewall. At first, I also \
thought the portscan was not even started. However, when I checked the firewall log, \
I did find the machine was really working but in a bit slow manner. I think it's cos \
of some timeout process.

Have u checked the log of the firewall or run tcpdump on the linux host?

The machine I've used is a PIII 450, Red Hat 6.1 running Nessus 1.0.4 and the time \
used is probably 3 hours to finish a job with all test selected.

Regards,
PIPE  

> I still have problems with nessus, scanning through a firewall. As I
> posted two days ago, I started nessus 1.0.5 from a linux host which is
> located outside a firewall to scan the DMZ (webservers) behind it.
> Unfortunately nessus did not even start the portscans nor did it find
> anything, although nmap 2.53 (which I ran seperately) did find some
> ports and did a good quess on the web-server's operating system!!! 
> 
> 
> I looked for the nmap process while nessus was running, I tried all
> different nessus-nmap-settings without any effect.
> If the target is on the same subnet, nessus does its job well
> 
> Does anybody encounter similar problems? 
> 
> regards 
> -sven
> 
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