· 6 years ago · Dec 28, 2019, 07:28 AM
1
2Day 2 :
3
4Basic of Networking :
5
6Network Terminologies – I
7Introduction to Networks
8Network Protocols
9IP Address
10Network Devices
11Default Gateway
12IPv4 & IpV6
13
14----
15
16Network :
17
18Social Network :
19
20These are the platform on which people connect each other
21
22Facebook, Whatsapp, twitter etc
23
24
25Computer Network :
26
27Platform --> Digital Devices connects each other
28
29ISP
30Router | Modem
31End Devices - Mobile | Laptop etc
32
33--
34
35Did any company or Countries owns Internet..??
36
37
38Pal --- Reg
39
40Internal Network
41
42Reg ---- Airtel | Jio | VodaFone ---- Priya -- Aman
43
44Inter nal Net work
45
46InterNet
47--
48
49Simple Video --> How InterNet Work
50
51Airtel :
52
53ISP -. Internet Service Provider
54
55They Provides us, the Internet Facility to connect with Outside world.
56
57Airtel | Jio | <- etc
58
59---
60
61ISP -----> Devices (Modem) Home --> 4 Port --> Provide Connection to Other Devices
62
63Only 4 People can use Internet
64
65
664 Port --> 3 Devices + 1 Modem --> 3 Devices + 1 Modem
67
682000 Rs --> 3 People
69
70
71
72300 people --> 200000 Rs ( 100 Modem )
73
74---> This is wrong concept
75
76----
77
78
79Device - Switch
80
81This is a device which provides multiple connection/port, by just using the single port of the Routre
82
83
84ISP --> Modem --> Switch(8/16/24/48/64/.../256) ---> End Devices
85
86Electrical Extension --> 1 Socket --> Extension ---> Mobile | TV | SetUp | PowerBank
87----
88
89Protocols :
90
91Rules & Regulation :
92
93India : Drive : Seat Belt | DL | Left etc
94--
95
96Internet is worldwide ----> Protocol --> These has to be followed by every that device which want to use/part of Internet
97
98
99Website :
100
101HTTP : Hyper Text Transfer Protocol
102
103HTTPS : Hyper Text Transfer Protocol with Security
104
105PTTP <-- No such Protocol will get support by any company
106
107Internet Protocol Address (IP Address) :
108----------------------------------------
109
110IPv4
111
112A.B.C.D
113
114Here A/B/C/D are called as Octet
115
116In place of A/B/C/D -->
117
118Values --> 0 - 255 (Including 0 255)
119
12056.87.98.87 <--
121
122667.98.87.67 <-- Values is >255
123
12467.98.87.45.34 <-- Octet are more than 4
125
12667.87.0.0 <-- Yes
127
1282.0.255.255 <-- Yes
129
130------
131
132Total No, of IP : 4.3 billion = 430 Crore
133
134World population : 7 Billion + 2x
135
136Every Device using Internet --> Unique IP Adrress -->
137
138CCTV | CAR | Printer | FANs | Light | <-- Home
139---
140Just to overcome this issue :
141
142New version of IP has been launched :
143
144
145
146
147IPv5 : <--- No of IP was again limited
148
149very soon we again have to shift on IPv6
150
151So we simply skip this version
152
153Its does not comes <--
154
155
156
157
158IPv6
159====
160
161Internet Protocol version 6
162
163
164A:B:C:D:E:F:G:H
165
166abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd
167
168Valueus that we can have : a/b/c/d ==>> 0-9 or a-f
169
17069e0:87aa:b79b:d572:d7f4:..... <--
171
172Total No. of Ipv6 :
173
174----------------------
175
176How Secure is Your Password
177
178https://howsecureismypassword.net/
179
180-----------------------
181
182Have i been Pwned
183
184www.haveibeempwned.com
185
186-----------------------
187
188Lates Password Leaks :
189
190www.psbdmps.ws
191
192---
193
194regvithbaskaran8@gmail.com // 12345 <--- GMAIL
195
196regvithbaskaran8 // 12345 <--- @gmail.com
197
198REGVITHbaskaran8@gmail.com // 12345
199
200Note : Email ID are never case sensitive
201
202ReGvItHbaskar...
203rEgV...
204
205
206regvith.baskaran8@gmail.com // 12345
207
208r.e.g.v.i.t.h.b.a.s.k.a.r.a.n.8@gmail.com // 12345
209
210Note :
211
212Gmail ---> before@ --> Dots are having no Meaning
213
214r.e.g.v.i.t.h...B.A.S...k.a.r.a.n.8.@gmail.com <---
215
216---
217
218OLA --> Register --> 100 Rs OFF
219
220OLA ---> regvith@gmail.com
221
222OLA ---> regvithnew@gmail.com
223
224OLA ---> newregvith@gmail.com
225---
226Now we need not to have more gmail acvount
227
228regvith@gmail.com
229reg.vith@gmail.com <-- For OLA --> This is different
230regvit.h@gmail.com
231r.e.gvith@gmail.com
232
233-----------------------------------------
234
235IP Address :
236
2372 types :
238
2391. Public IP
240
2412. Private IP
242
243-------------------
244
2451. Public IP --> All devices using Internet
246
2472. Private IP --> Those devices which are using Internet via some Modem/WiFi
248
249
250For mobile Data --> only Public IP | No private Ip
251
252---
253
254anything that we do on Internet --> Everywhere --> Public IP makes a log -->
255
256Criminal always get caught via the Public IP Only
257
258
259---
2601. Public IP <--- ALways given by ISP
261
2622. Private IP <- Alwys given by Modem
263
264--
265
2661. Public IP --> Google --> My IP
267
2682. Private IP --> cmd --> ipconfig
269
270--
271
272Location --> Only with Public IP --> www.ip2location.com
273
274Investigation ---> Public IP (106.51.20.151)
275
276ip2location -->
277
278Only Genuine --> ISP
279
280We ll connect with ISP ---> 106.51.20.151 who is this person
281
282ID Proof <--- Address. Pic. Phone etc
283
284---
285
286Note :
287
288ACT ---> 1.2.3.4 --> Regvith WIFI ---> Father | mother | brother | Y0u
289
290All person/devices using this internet, will have same Public IP
291
292Bcz for you all, ISP is same
293----
294
295Task for Day :
296
297
298Public IP --> for multiple devices
299
300private Ip -->
301
302--------
303
304Next Session :
305
306
307Proxy | VPN -->