IP addresses and ports.
Hello, everyone.
They were actually going to dig a little little bit more into detail on what his IP address and how
we use it to connect between different ports.
So the definition for IP address is specifically used to help users to uniquely identify a device over
the Internet, while a port is an end point of communication in the operating system.
For example, this is the end point, which is waiting to connect to some other way point with point
on the Web.
And this is the way those two devices can connect over ports.
So when you connect over the Internet, your device is assigned a specific public IP address, while
each website that you visit also has a specific public IP address as well.
So both IP addresses are used for both devices to connect and exchange data until now or until at least
recent years, who are using the IP for public addresses base, which is basically a pool with all the
IP addresses that are possible to be created.
But recently, also the IPV six was introduced as the IP before it reached its limit, which was about
tens of billions IP addresses possible.
So as you can see, the reason why the IP before goes retired is because the possible IP addresses of
the IP before space were about four billion of the same time.
Now, since they didn't expand it quite a lot and all those IP addresses her take on radio for that
reason, now there is the IP six, which has this amount of other resources which they can even not
pronounce how large this number is.
Let's talk about the ports now.
So the ports are basically numerical values that are used to identify a process that is being communicated
between different IP addresses.
So every port uses a single other port in order to send communication to it.
So basically you need two ports and two IP addresses in order to establish communication between devices
in the TCP IP network.
So even if the system is running thousands and thousands of servers in order for us to uniquely identify
a service on the system, the application simply requires a port number to which to connect to.
So you can see actually port numbers on the Web and by default, the HTP protocol uses the port number
of eighty while the HTP switches to secure the more secure protocol for connection issues in the Port
443.
So I pulled up for you some ports, some typical ports so you can have a reference for them.
And as set, the HTP for HTP is from Port 80, HP is used for its own Port 443, while the SNH or the
secure shell, its own port pointed to the telnet or the remote login is usually on port way to treat
the attempted use on Ports 25, while the DHS service is usually on port fifty three.
So these are some typical ports that you can bear in your mind.
But if you are doing custom applications to your system, you might consider to create a specific number
to your port.
So it is also very important to make good difference between the public and the private IP addresses.
Well, see, usually the private IP addresses range to 892 point thirty six eight zero zero.
You might see this to 10 dot 255, 255, 255.
These are quite a lot of public IP addresses, sort of private IP addresses and private means that the
sort of IP addresses that can be stored on the local system, for example, you can run a server in
your home and connect different devices with the different IP addresses that you assign to them on their
website.
You have the public IP addresses, which are basically are policies that are processed through your
Internet service provider and you can access them over the Web.
That said, guys, thanks very much for watching this video in this lecture, I hope the IP addresses
and ports topic were interesting.
Now, we were a little bit more clear about what is that, because I'm sure you've seen this topic,
so you've heard at what is i.p in the past.
But now we know a little bit more detail, way better than your peers.
That's it.
Thank you very much for watching.
And I will be waiting for you in the next video.