Instructor: Now let's get into the network side of Linux.
Of course, this is not network
where you're gonna be learning switches and routers.
That's completely a dedicated network job
that you should look into.
But in Linux, even if you are system administrator
or engineer, you have to know a few things of network.
What it means is when you are building
or installing a Linux machine,
you need to configure an IP address.
You need to know certain things,
certain components of network to get it working
and get it online.
What are those things?
Of course, the first thing is IP.
IP stands for internet protocol.
IP address is, could be like for example
192.168.1.234 or whatever.
So depending on the organization you are in,
you're probably you're gonna have a different range
of IP addresses. So your job is to assign an IP address
and you should know what an IP address is
and what it looks like.
Subnet mask is an associated way to attach it
to the IP address.
And then we have a gateway.
Gateway tells your computer which route
you have to pick to send you traffic out
and to receive your traffic in.
So if you are in your home environment, your modem,
the IP address of your modem will be your gateway.
Then we have the static and versus and DHCP.
What static is, if you are given an IP address
from your company, from your corporate environment
and you have to assign a dedicated IP to your machine,
that is called static and when you reboot your machine
that IP does not change.
Whereas if it is set up as DHCP, the IP address will change.
It will pick an IP from a pool of IP addresses
and every time your system is rebooted,
most likely it will change its IP address.
So in most of the corporate environment,
you'll be setting up a static IP address.
Then you have a interface.
What interface is, if you look at your laptop
or your computer, in the back of it,
there's a port where you connect connect your CAT-5 cable.
That's a interface, a NIC card.
So interface always have a Mac address
that is a permanent MAC address to your NIC,
associated with your card
and this MAC address never changes.