Re: Internet hosts = "No vulnerability found"

[Ron Gula <rgula@tenablesecurity.com>]

Sean Carolan wrote:
> Hi folks, wondering if you can help me with this:
> 
> I'm using the Windows version of Nessus to scan my Linux servers.
> When I scan the Linux box on my local LAN, I get a few messages in the
> vulnerability report related to SAMBA, etc.  However when I try to
> scan a different Linux server on the public Internet, I get "No
> vulnerabilities found" after about 10 seconds of scanning.  I can't
> believe it's actually going through the entire list of plugins in 10
> seconds.  I even have my ssh info in the settings to let it log into
> the Linux box as a normal user.  I have tried turning off ping, and
> also expanding "Checks read timeout" to 15 seconds, but no luck.

Try running a sniffer either on your local host or target to see which
packets are actually getting to your target system.

This is a very common support request our Direct Feed subscribers
inquirer about. Typically it is a firewall or router or proxy or some
network issue between the scanning host and the targets.

Ron Gula, CTO
Tenable Network Security
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