1
00:00:00,720 --> 00:00:04,560
So let's start with what is a website and what is Web server?

2
00:00:05,160 --> 00:00:13,000
So this is my PC and with the help of a browser, I have opened beta dot com, which is a Web site.

3
00:00:13,660 --> 00:00:19,660
Now, the part which you are seeing here is called as front end.

4
00:00:20,180 --> 00:00:26,550
OK, so it is basically a page estimate is a markup language.

5
00:00:26,820 --> 00:00:29,580
So it is a basically XHTML page.

6
00:00:29,730 --> 00:00:38,190
And every Web site you open, for example, if you open Facebook dot com, then also you will able to

7
00:00:38,190 --> 00:00:41,500
see the front end part of this website.

8
00:00:42,090 --> 00:00:42,400
Right.

9
00:00:42,600 --> 00:00:45,530
So every Web site is divided into two main parts.

10
00:00:45,540 --> 00:00:47,920
First is front end and second is backing.

11
00:00:48,540 --> 00:00:54,810
Now, the part which you will able to see is called s friend or client side, and the other is backend,

12
00:00:54,810 --> 00:00:56,150
which is server side.

13
00:00:56,820 --> 00:01:01,520
So there are different technologies used in both front end and backend.

14
00:01:01,830 --> 00:01:05,760
For example, the funding part will use HTML.

15
00:01:06,520 --> 00:01:09,550
OK, and also a JavaScript.

16
00:01:10,380 --> 00:01:16,710
So if you visit any anon web website and that Web site will ask you to run JavaScript, then don't allow

17
00:01:16,710 --> 00:01:22,940
that Web site, OK, because JavaScript will execute on your PC and not on this server.

18
00:01:23,490 --> 00:01:23,810
Right.

19
00:01:24,960 --> 00:01:28,660
So if you don't trust the website, don't allow it to run JavaScript.

20
00:01:29,550 --> 00:01:38,430
Now, if you talk about Beckenham, which is a server side, which is a Web server side, so Web server

21
00:01:38,460 --> 00:01:42,620
is nothing but a computer like your computer.

22
00:01:42,760 --> 00:01:48,080
OK, it is no different, but it has more power than your computer.

23
00:01:48,330 --> 00:01:49,860
It has more memory.

24
00:01:49,950 --> 00:01:51,400
It has more storage.

25
00:01:52,090 --> 00:01:52,500
OK.

26
00:01:54,280 --> 00:02:00,630
But the working of Observer is seen as your PC, OK?

27
00:02:00,670 --> 00:02:06,400
You can also install Windows operating system on server, you can also install Mac OS, you can also

28
00:02:06,400 --> 00:02:07,450
install Linux.

29
00:02:08,320 --> 00:02:17,890
Right now, the technologies your server understand is BHP Billiton, MySQL, etc..

30
00:02:18,670 --> 00:02:21,340
So my Ezekial is a database and.

31
00:02:22,940 --> 00:02:30,620
Apache is a website, so Web server and database are two of the main components which a server must

32
00:02:30,620 --> 00:02:34,140
have in order to become a Web server.

33
00:02:34,490 --> 00:02:36,170
So these are the two main applications.

34
00:02:36,630 --> 00:02:42,930
Any computer having these two applications has a capability to become a Web server.

35
00:02:43,760 --> 00:02:43,980
Right.

36
00:02:44,690 --> 00:02:52,020
So if you want to perform an attack on the server side, then you must create your attack in a language

37
00:02:52,020 --> 00:02:55,400
which web server understand, like BHP Billiton, etc..

38
00:02:56,420 --> 00:03:02,960
And if you want your attack to perform on the client side, then you will create that attack in JavaScript.

39
00:03:03,560 --> 00:03:09,210
OK, so these are the basics of what is a website and what is a web server.

40
00:03:10,420 --> 00:03:19,250
OK, now in the next lesson, I will teach you how exactly what is happening behind the scenes when

41
00:03:19,250 --> 00:03:22,070
you try to access a website like Facebook dot com.