The document discusses privacy on the internet. It begins by asking what privacy is and providing scenarios about a bulletin board, love notes, and a post office to illustrate different expectations of privacy. It then explains how the internet works, noting that content is separate from the platform used to transmit it. Messages may pass through multiple machines and be broken into pieces while traveling online before being reassembled. The document discusses who controls the internet, noting that ICANN manages IP addresses and domain names while internet infrastructure is controlled by various companies and organizations. It concludes by questioning whether users can trust these entities and discussing factors like encryption, anonymity, and censorship that impact user privacy online.
11. Four important things to remember
about the Internet:
1. Every machine has a unique numeric IP address
2. Humans are bad at remembering numbers so
we associate names with IP addresses.
3. To get a message from one machine to another,
you may have to pass through other machines
4. Your message may be broken apart as it travels.
Don't worry, it gets reassembled at the end.
12. Two important things to remember
Four
about the Internet:
1. Every machine has a unique numeric IP address
2. Humans are bad at remembering numbers so
we associate names with IP addresses.
3. To get a message from one machine to another,
you may have to pass through other machines
4. Your message may be broken apart as it travels.
Don't worry, it gets reassembled at the end.
14. What is the IP address
of www.facebook.com?
Who owns 31.13.68.8?
Where is it located?
15. When you connect to a server...
Facebook server
(somewhere in
Europe?)
Your laptop
Teh Internet
You
16. How did we get from HERE to THERE?
192.168.1.1 –100.91.64.1 –121.96.7.XX
202.78.101.xx
31.13.28.xx –-
my local machine (private IP address)
provider's router (shared address space)
Bayantel's network
Facebook's network
17. When you connect to a server...
Your laptop
Facebook server
(somewhere in
Europe?)
Bayantel
Some HK telco
Bayantel
(or maybe in HK?)
You
Teh Internet
19. Who controls the Internet?
(ah, but what do you mean “controls”?)
20. Two important things to remember
Four
about the Internet:
1. Every machine has a unique numeric IP address
2. Humans are bad at remembering numbers so
we associate names with IP addresses.
3. To get a message from one machine to another,
you may have to pass through other machines
4. Your message may be broken apart as it travels.
Don't worry, it gets reassembled at the end.
21. At the fundamental level...
...who controls IP addresses?
...who controls the names?
22. Internet Corporation for Assigned Names
and Numbers
●
●
Management of addresses and routing at top level
Administration of generic top-level domains and country
code top-level domains
●
Allocation of IP addresses
●
Other services
23. Who controls the Internet?
Content
__ __ __ __ __ __
Platform
ICANN
IP addresses
Domain Names
24. Who controls the Internet?
Content
__ __ __ __ __ __
PoPs/ISPs PLDT, Globe, etc. Orgs Universities, governments, companies
Regional Backbones Asia, Africa, Europe telcos
Tier 1
ICANN
Platform
Providers
Level 3 Communications, CenturyLink, Vodafone,
Verizon, Sprint, and AT&T Corporation
IP addresses
Domain Names
25. Who controls the Internet?
Content
__ __ __ __ __ __
DNS
ICANN registrars
ICANN
IP addresses
Domain Names
26. Can we they be trusted?
DNS
ICANN registrars
PoPs/ISPs PLDT, Globe, etc. Orgs Universities, governments, companies
Regional Backbones Asia, Africa, Europe telcos
Tier 1
ICANN
Platform
Providers
Level 3 Communications, CenturyLink, Vodafone,
Verizon, Sprint, and AT&T Corporation
IP addresses
Domain Names