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| Subject: | Re: After a scan... host is considered as dead. |
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| Date: | Thu, 10 Apr 2008 08:48:23 -0400 |
You're right... we found that McAfee Desktop Firewall black list the nessus server ip because of a tcp scan detection... Thank you! Steve 2008/4/8, Rui Chilro <rchilro@fcna.up.pt>:
Hi there, This may seem naive but i had a similar problem and found out that the linux server built additional rules to the firewall to block my nessus server. Glad if it help! Cheers Rui ------------------------------ *De:* nessus-bounces@list.nessus.org [mailto: nessus-bounces@list.nessus.org] *Em nome de *Steve Royer *Enviada:* terça-feira, 8 de Abril de 2008 15:33 *Para:* nessus@list.nessus.org *Assunto:* After a scan... host is considered as dead. Hello everyone, Francesco Sottini post a message recently.. I have a similar problem. Consider a host A (Windows XP) and a nessus server B (installed on Windows XP). For the 1st scan of A, everything work correctly... (B ping A and A ping B) But subsequently scan of A give me alway the same result "Remote host is considered as dead..." I've force Nessus to disable pinging but the result remain the same... Within a shell on B, I cannot ping A and within a shell on A I cannot ping B (100% packet loss). In fact, on A I can ping every server on my network exept where was coming the first scan (Nessus server) And on B I can ping every workstation that have'nt been scanned. I'm using Nessus 3.2.0. This was a scenario where Nessus server is installed on Windows XP. The same result occur for the new Nessus Server rpm 3.0.6 on redhat. Thank you Steve**>* On Apr 8, 2008, at 1:57 PM, francesco sottini wrote: *>* *>* > Dears, *>* > *>* > I am doing an university project and the final goal is to scan 4 *>* > hosts and report all the problems that we meet. *>* > Well, the 4 hosts are on a private network. to scan them, we have to *>* > connect with the nessus client to a nessus server and then scan the *>* > target. *>* > The problem is that for an host, i obtain always the result:" The *>* > remote host is considered as dead - not scanning". *>* > *>* > I suppose that on that host, declared fromt he professor "an hard *>* > challenge", there is a kind of IDS or honeypot.. *>* > *>* > what can i do? *>* *>* You can force Nessus to disable pinging the remote host prior to *>* scanning. Edit your policy -> advanced -> "Ping the remote host" and *>* uncheck all the boxes (ICMP ping, TCP ping and ARP ping). *
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