• Cloudflare 

• GoDaddy 

• Cloudflare

Google Public DNS 8.8.8.8/8.8.4.4 

Cloudflare DNS 1.1.1.1/1.0.0.1

10.

192.168.

172.16-32

127.0.0.1

::1/[::1] 

• PKI - Public key infrastructure 

• Certificates will have Public Key Only

• Certificates will have Both Public & Private Keys

• Public Key is accessible to everyone and public

• Public Key owner/generator will have Private Key

• Public Key should be taken from trusted parties/servers 

• Public Key should be verified with issuer before transmitting confidential Data

• Public Key of E2E encryption is always available

• PKI - Asymmetric Key Encryption

• Asymmetric Key Encryption is 1 way Encryption

• Asymmetric Key Encryption will use Hashing

• XMail

• Gmail

• Outlook

• iCloud 

• Yahoo

• AOL

• Protonmail

• GMX

• Google Voice 

• RingCentral

• Skype

• Zoom Phone

• E-Mail OTP

• SMS OTP

• TOTP

• Notification 

• Hardware Security Token Key

• Passkeys

• Password

• PIN

• Passcode

• Security Questions

• Recovery Key

• Face ID

• Touch ID

• Experian

• TransUnion

• Equifax

• Innovis

• Cancelling Line makes ineligible for Promotions and Deals, Port out Instead 

• Unlock Phones takes 48 Hours 

• Download Bill before Cancel/Port out