In the last lecture, we talked about the firewall's and I also told you how far the world works.
We also had an introduction to the demilitarized zones in the upcoming sections of these courses.
I'm going to explain in brief about the working exact working of firewall's Hovell delivers packets
and removes the unwanted scam's and all those things.
But for this section, for networking devices section, you just have to understand what a firewall
is and how it performs.
Now, in this lecture, we are going to talk about the intrusion detection system.
That is the ideas and the intrusion prevention system that is the IS.
Now, note that these two systems are totally different or do they have some similar functionality between
them?
So what is an ideas idea stands for intrusion detection system from the name, you can guess that intrusion
detection system, if something is trying to get into your network.
This system will detect it and notify you.
That's it, you got it.
This is the example of this is the definition of intrusion detection system.
If an attacker is trying to enter into a network, ideas will detect it and notify to you that is the
intrusion detection system.
And intrusion prevention system, so now you might have guessed from the definition of intrusion detection
system, what is an intrusion prevention system, right.
So as the name suggests, intrusion prevention system is prevention.
Now, look at the word prevention.
So this device will stop someone or something from entering into your network.
That's right.
So ideas and apps are very important in today's networks.
They are the network security appliances that monitor the networks and packets for malicious activity
and ideas is considered as a monitored more device.
And it just records and tells you about your problems, whereas an IPS can work in real time to stop
threats.
So ideas is just like a security guard, which is just trying to tell you.
Right.
You know, this person is trying to enter.
Please do whatever you can, but as an IPS can work as a doc security dog, which actually prevents
or box on the attacker and stops him from entering into your network.
Now the main difference between the ideas and the IPS is that intrusion prevention system works in line
to actively prevent and block the intrusions that are detected based on the rules you set up.
In the last lecture, we had talked about the rule setting in case of the firewalls.
The same thing applies here.
Intrusion prevention systems can send an alarm or create a correlation rules and remediation.
They can drop malicious packets.
They can provide malware protection and reset the connection of offending sauce hosts.
I hope this was clear.
If you have any doubts, please feel free to ask us.
Now let us have a look at each ileus host based intrusion detection system.
What is it?
Ideas in a host based intrusion detection system.
Software runs on one computer to detect abnormalities on that system alone by monitoring applications,
system logs and even clocks.
Now, HIV AIDS does not directly monitor system network traffic.
Also, its ideas are mostly implemented on servers because they are able to manage its spread across
a large computer on the network.
Plus, if A.
S Ideas database is on the local computer and its data becomes compromised by an attack, the ideas
could be corrupted.
So as far as this letter is concerned, you just have to remember the full form of ideas, ideas.
Then you have to remember the difference between ideas and ideas.
And let me remind you that IPPs works in life environment to prevent the malicious activities.
But as ideas just notifies you if there is something malicious happening on your network.
Now, in the next lecture, we are going to talk about access points.
You have heard of access points, but if you are not sure, what does that mean?
Make sure you understand and attend the next lecture.