Hey, everyone, welcome back to the
course. So in the last video, we
just ran a Christmas scan.
Again, a Christmas scan is only
going to work on a Linux machine.
So if you see that on any type of
certification exam, you'll know the
answer now.
So in this video, we're just going
to do another inmate command, so
we're actually going to close our
Zend map tool and we'll go back to
our command prompt.
So the way we can close this out,
just out of it at the top.
Right. It's going to say to you,
hey, you have say changes.
We don't care what you want to close
it anyway.
And then we're going to go back to
our fancy viewer and
just maximize that again.
So just click on the little Tiggers.
I might take a moment or so since
it's been a minute since we've used
it, but then it'll take us back to
our command prompt here.
All right, so let's go back to our
lab document here.
So now we're just going to run an
acknowledgment scan.
So again, that's why you need to
understand the TCP three way
handshake for this entire course,
to understand that we send a signal
back, we get an acknowledgment and
send it back, and then we end out
with an acknowledgment to establish
her three way handshake.
Of course, there's more things involved
in there, but that's kind of the generalized
high level overview.
All right. So we do have our Kelly
Root terminal open.
So we're actually ahead of the game
here. We're going to do is step four
here where we're going to type in
this particular command at the prom.
Now, what we want to do here and
what we're specifying is part number
80. So we want to find out, is port
80 filtered or unfiltered?
So that's kind of our goal with this
particular lab.
So let's do that now we're to type
in and map space, dash lowercase
s capital, a space
dash lowercase P to
specify the port number and then
space 80 to specify that we want
port 80.
And then we'll finally end up with a
space and then our IP address that
we want to scan against.
Again, that if you recall from
earlier, that's our server
IP address.
So let's go and type that in now.
So we'll type in and map
space.
Dash lowercase s capital a
space dash lowercase P
space eighty and then again
a space in our IP address.
So 192 dot one six eight
zero one.
All right. And I always like to
double check myself. I know I typed
that correctly, but always just make
sure that you're typing the correct
command and so you don't get an
error message. If you get an error
message for some reason, that
usually means you fat fingered
something and it's double check
yourself and go back and correct it.
All right. Once you type that in,
just go ahead and hit.
Enter your keyboard.
It's going to go ahead and run the
scan here. Might take a moment.
So I'm going to pause the video
here. It usually takes about 15 to
20 seconds.
I'll pass the video. We'll pick it
back up once I've got some results.
First, you see, I've got my output
again, it takes, you know, anywhere
from 10 to 15 seconds, possibly a
little longer, depending on your
connection.
But let's go to our main question
that we had on our lab document
here. Question number one is port
number 80. Is it filtered or
unfiltered? So if we look at our
output here, you'll see the second
line from the bottom shows us Port
80 there.
And we see that it's unfiltered in
this situation.
All right, so in this video, we just
read a quick acknowledgment scan
again, you could do things more in
depth. Look, we could put an actual
range of IP addresses there if we
wanted to, but we're not going to do
that for this particular lab.
I just wanted to keep it simple for
you, but also keep in mind that
these are all particular tasks that
you want to know and understand how
to do when we move into the
assessment phase of this particular
course.