One of them I got one.
Now we're talking about the process and the application layer.
Same thing goes elsewhere.
Well the process has been within the application layer.
The TZP IP model right now one of the things is we breaking down the protocols as we go.
I like telnet.
This is the first standard developing 1969.
It's a chameleon because it's not only our you know it's a port 23 but it's a protocol because what
it allows you to do is to create this terminal session to another computer nobody knows you're there.
So you're chameleon easing there but you're able to do things.
Ok you able to go inside somebody on a remote device your own computer your own router or somebody else's
router and make configurations malicious configurations.
But going in there and check things high they're going if you need to put something in or take something
out or the case may be found.
Well the first thing the bad thing about all that is it is not secure.
It is plain text.
This is where S-sh comes in and that's why now Cisco went in there and U.S. CNA there really.
And even their He and other sort of occasions they look at S-sh everybody out there has as a say.
Why.
Because it's like Telma.
But you now have the capability of the password username and password and you have encryption that's
involved as well.
So there's a lot more secure than telnet.
So we prefer again when we talk about port no emergency this will be port number 22 and we use these
but these are applications and they're like chameleon's because really nobody knows that you've gone
in there unless they have some sort of software that they've installed that they shouldn't have because
they shouldn't have that privilege.
But what about now is the drudgery when they're logged into their domain right while you're line them
to do on that computer that you should they should not be able to write software that will detect case
somebody tell me into your device Hey somebody is one at this age session.
It's your device so you shouldn't do that.
But this protocol is part of the TZP IP.
OK I totally 1969 was a long time ago.
Now we also have STPI.
Everybody has used STPI with FCP.
You do have the capability.
That's what the file transfer protocol you transfer files back and forth.
Very quick very low overhead.
You have security you can go through browsers hours at software upon software upon applications out
there.
They use S2P to transfer things back and forth which makes it a lot easier than doing it through H.
TTP.
Right.
Because they TPD of the hypertext transfer protocol which allow which is for web pages actually.
So there's more there's more programming it's a more coding behind that than there is with FCP.
What a sore throat.
Oh I have to be right thing to do both directories and files that are OK and it has nothing to gain.
So I told you all this stuff.
So this is what I have to be does and you know we do use this we do we really do I.
If you want to have the security part of it if you want to be quick about it.
TFT P will be a broken down version of that right.
It has a lot of laughs.
There's no security there is no browsing.
Once you set up a TV server on particular in a folder or PC or whatever it is where are you going to
plug it.
That's where it's going period.
Some of the servers actually nowadays depends who you are using by the viewers.
So when you have the capability of having that person long in but other than that the fee is not like
that because it is really the one we use when we're backing up our routers or switches and all that
we use Kavi start to have to be wired because this quick has no overhead on here.
But again no drudgery running abilities meaning that they can only send and receive files.
You know you want a wall let you go from here to there and you see which folder I want to put it in.
That doesn't happen.
I asked an MP simple Magsman network protocol.
OK.
As it says right there it collects and manipulates valuable network information or by polling to a network
management station.
We use SMP.
So we can create all these get acquire all of the information from the devices there on our network.
This is what SMP does.
And there are three versions of who you are or have taken the CCMA and CC MP.
They talk about SMP because the system is empty.
That is they talk about SMP.
What is useful to create all these different to what Choire to acquire information by pulling are devices
to see what's going on.
And again you're going to really do it.
I mean you could do your routers with switches.
What have you your PCs and all that you're going to use third party saw which can be nice views and
charts look at.
Again I go back to sort of once was there one number one out there OK for you to acquire all the information.
So but all these articles are on the TCAP IP model and the application there here we know what we know
what a CD is.
This is you know Web sites comprising I mean a lot of our goals were the launch of graphics type graphics
text links and so on.
So in order to for your website to come out it has to be age compatible.
Right.
All communication between web browsers and web servers opens the right source.
When you click a link I was the way you create your hypertext.
It was called hypertext reference sleekly a hyper reference.
Later on I forgot one time and I said no.
That's old
when you put on those lanes.
They're actually opening up on communication to get to another hypertext a TDP page.
Ok this is what makes you able to see all the different web pages.
Now you see HTP down here 80 to be not secure not secure whatsoever.
It can say a million things on a web page that it's secure or whatever.
No no no.
If you don't see the ass behind the HTP it's not going to be secure.
Also if you go to the extremes of going to an actual third party person say hey listen I a sign or something
like that I say hey I need you to you know verify that my website is secure Please check for any security
holes whatever that you can validate that my site is secure because if you are doing the say donations
or you're doing all selling solve whatever the case may be they have to do some sort of transaction
especially if you're a bank and we know banks get have anyway.
You need to make sure that you have some measure of security.
So definitely you do want to use h t t p s.
OK.
Now of course DNS Nacho resolves resolves or translates it made that.
But when it resolves resolves host who resolves domain names I lose all domain names to IP addresses
and vice versa.
OK.
Well story goes you get an answer.
Now you really don't need to time domain or web site to get to or you could always the public IP.
We are human beings.
Some of us are OK.
We're not going to remember every IP address other known to mankind.
All right.
So there's 4.2 something billion rounds off to 4.3 billion addresses.
OK.
You know I don't remember that.
But you remember Microsoft that you remember Facebook dot com remember snatch back on and remember all
these Web sites.
Google.com.
All right.
Remember all these different Web sites and when you tell your buddies you know hey this is this website
and to go to.
I'll give you a little example.
I used to work for a county I want to mention which one a county that when I went to work I like to
listen to the radio.
So there's a radio station there was really cool zones online.
All right.
So I knew that you are all right.
So I typed in the URL.
This is just the domain name of the euro.
The euro will consist of the H.
The protocol as well.
A CVP.
OK.
So I will type it in.
I just hadn't a domain name I remember what it was now.
And I was into my writing but one day came in and I had this as cannot whatever some securities think
so that I can do it I say really.
So I went into the command prompt which I shouldn't have been able to administrators.
OK.
Because I was a user I painted the website I got the IP address.
Then I put the IP address on the browser and I thought was able to listen to my radio.
All right.
That is what I'm telling you that if you don't do your due diligence you know that doesn't take a genius
to do what I did.
OK.
And your faith and knowledge you know hey this is attached to an IP address.
Finally a few address I can put it on their computers and on theaters that are no domain names.
OK.
That's why when you create this host record because a domain name is right here lies dot com.
This is actually to hold a record that we attach the IP address to.
So if I know the ACARS polling that it didn't get to it and I did or because they didn't block the IP
address they did they just blocked the name the domain name.
This very ominous blog this being this person that was in order.
And they do their due diligence.
OK either way.
And like I said here it's not recommended.
Me you know don't remember all these years is crazy.
While the hardest ones to secure isn't what I was working at the college was mostly because my face
bought different ranges of IP addresses within all three classes a b and c and to blunt them as proxies
upon proxies upon proxies.
It was hell on earth ok to block but that's why you have policies.
Ladies and gentlemen and I'm getting off on a tangent.
OK we are talking about the application layer.
But again you know a little bit you know our security locations we are know about the Internet DNS name
resolution.
All that stuff.
You need to create policy user policies that say you are not to use work computers for for your own
pleasure.
All right.
It's not for Facebook.
The email you're using Exchange server or whatever or just what mail you're not allowed to go into.
Personal Web mail.
A lot of my vacation pictures from Hawai or gay or anything else putting your personal banking information.
Don't do it.
The work computer is for work not to be listening to YouTube music or YouTube videos or what have you.
OK.
It is for work because what you're doing is opening up a hole to come into the company and get a virus.
Keep that in mind no matter what we put in a stupid PSA members sign says we're there we're safe and
all this stuff and we have firewalls.
There's a matter of policies in place to let your users know.
This is a work computer and you use it for war.
Also that means I can read my own computer and I can do what I want I can on my myself.
No it goes you're on my network OK.
So whatever device that's connected to your network.
Ms.
Another computer a laptop cell phone.
You're opening the door for the company to get a virus just because you want to put something on Facebook
or you are possibly on snatcher or you want to put something on my face or whatever the case may be.
OK.
So policies need to be put in place.
I'm very wonder about that.
But these are protocols that work in his toes more.
But again just to give you so you can understand more or less what's happening at the application where
in the next.