Nic, information, what is it, Nick?
Nick stands for Network Interface Card, that is something that is attaches to your computer, your
desktop or your laptop.
If you look at the back of your laptop, you will see the little port where you connect the the Ethernet
five or six cat five or six cable to it.
That's the card installed in your computer and the port that is associated and or attached to the card.
That port is called Nick and Linux are in computer world.
It's called Nick.
An example to find the information about the nick is that you run a command ite tool followed by the
name of your nick.
And how do you find out the name of your nick?
Think and think about how do you find out the information about your neck, you run the command if config,
that will give you all the interfaces off your computer.
Now, if you run if config, you will see other niks as well.
What are those?
Well, there is one of the NIC that you will see that shows up is el o l o stands for Loop Back device
is a special interface that your computer uses to communicate within itself.
It works as a diagnostic and troubleshooting and to connect servers running on the local machine.
So it's likely you could say a private communication within itself.
Then you have another nick that you probably will see in your machine.
If it's a horseshoe machine, it's v i r b o.
This stands for Virtual Bridge Zero interface is used for Nat.
Nat stands for Network Address Translation.
The virtual environments sometimes use it to connect to outside network.
So I don't want you to really focus on the R B zero or even L.O. because you will be seeing this.
But there is not, not main function of this.
The only function of the interface that is used to communicate to other computers is a different the
third interface, which is usually labeled as if it's Oracle Virtual, it's ENPI or if it's a regular
server, you're probably going to see zero one, two or so on.
So we will run this command tool in our environment and see how we could get the information about our
interface.
So we'll go into our Linux machine.
And this time I want to log into my system using our console so the console or you can use Pudi session
to if you want to.
So let's see if I have a PUDI session, I'll just execute the decision right here.
But in order for me to run Purdie session, I need the IP address.
How do I find the IP address, how do we find it if config.
Now you should be comfortable enough to run this command all the time if config put more because if
it's, if it doesn't fit on the screen it'll give me one page at a time.
And the IP address that I have for my interface is this 192 168 Towanda twelve.
I log in has myself and in order for me to run the eight tool command I have to reroute.
So I am route.
Let's clear the screen.
Let's.
Get rid of this one, minimize it, since we already have the PUDI, let's make it a little bigger and
now we'll talk about the interfaces again.
How do we check our interfaces if config?
As you can see, we had the main interface right here, which is the one that is used to communicate
to other computers or outside world and it has ipsi.
The next one is L oh.
Which I have already explained.
And the third one is V i r b r zero already explained in my slide.
I want to get information off.
We are bizzaro.
So let's say each tool and V.I. are are zero and it will say Lync detected no.
So forget that then.
Next one we want to do is either tool l'eau link detected.
Yes, but there's not much information that's out there because it's the systems, its own interface.
So we don't have to worry about that.
The one that we have to be concerned with as each tool DNP zero as three.
Where do I get that right from here?
See this interface?
This is a name of my interface, so I will run it tool followed by the name of my interface and I'll
hit enter once I hit enter.
I have right here my command output start from right here.
This is what is telling me that setting for interface is supportive.
Portas Ts TTP supported link modes.
It supports ten which is ten meg, hundred meg and 1000 meg.
What is 1000 meg.
It's one gig.
So my interface supports one gig of traffic.
Nowadays, if you're running your computer on a very high speed network computer, you will see ten
gig right here.
So a few things that you do have to get out of this command e tool is one that if it's link mode as
thousand or ten thousand second, you have to know, of course, the speed is 1000 megabytes, which
is the same as this one.
Then you need to know it's duplex is a full half duplex.
These are the things you have to provide to your network administrator, because when your computer
is connected to a switch and switch has to be configured for your port to allow the traffic to come
in and leave your server, your system, your network administrator will ask you for that information.
So be ready for that.
And remember, the command to find that information is ethe tool.
And the last one is Link detected that your user interface link is up, is active, it's not down.
If you are troubleshooting it, you can find it.
If you see no here, then it means there's something wrong with you didn't have a card.
I try these commands one man command on ethe tool and try with different options that is given and see
what are the options.
Gives you the exact information that you are looking for.