George A. Theall escribió:
On Jun 23, 2008, at 6:39 PM, Roman Medina-Heigl Hernandez wrote:
Btw, the "do not scan fragile
devices" will only appear if you create a new policy. Why doesn't it
appear
when editing default scan policy?
It's a known issue, I'm afraid.
Another Windows issue (I guess): If I create a new policy, and enter
"credentials", the window gets screw (same text is duplicated upper and
down, using "half" a font :)).
I disabled the ping scan and it didn't work either. But... I
reenabled ping
and check icmp ping in advanced options, and now it worked!! I
suppose that
Nessus marks a host as dead if all tests failed, and now that icmp
ping is
being checked, the host is no longer mark as dead... is it right?
Anyway, I'm still a bit confused because letting only marked the
"Nessus
TCP scanner" option (thus ping scanner disabled), and changing "port
scanner range" from "default" to 1-65535, the host is still being
marked as
dead. What's the exact algorithm to mark a host as dead?
Hmm, my advice wasn't totally correct. If you're enabling plugin
dependencies (which you almost certainly want to do), ping_host.nasl
will get run anyway. The correct solution for disabling the ping
scanner is to uncheck all the boxes (ICMP ping, TCP ping, and ARP ping).
Qs:
1.- If I check the three marks (icmp, tcp, arp), I suppose the host will
only be detected as dead when the three tests fail, am I right?
2.- When a host is detected as dead, is it right to assume that all modules
(ping_host.nasl, dont_scan_printers.nasl, etc) got a failure? In other
words, the host is alive when at least one of the modules thinks so (some
kind of "OR" logical operation), and it is dead when all modules fail
(logical "AND"). Right?
And why are those
ports not being used by TCP scanner?
Are you scanning over a PPP or PPTP connection? That's also not
supported currently in Nessus Windows.
No, it's a LAN connection (ADSL). Btw, is there any doc discussing Windows
vs Linux version differences such as the former one?
--
Saludos,
-Roman
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