Add Byte - Using common Networking Tools

[SuryaSekhar14]

MicroByte Title: Using comming Networking Tools

Domain: Networking, OSI Model, DNS, IP, ping command, traceroute command, dig command

Scope of learning for learners: The learners will get to learn about Networking, and the OSI Model behind it. They will also get to ping networks, dig into their DNS entries and trace the route - how their computer got the information and see all the network hops.

Activities:

1. Setup - Linux is easy but Windows users will have to manually install the 'dig' tool and add it to the PATH
2. OSI Model - Brief Note about the OSI Model
3. DNS - Brief about what DNS is
4. ping - using the ping command
5. traceroute - using the traceroute command (tracert for windows)
6. dig - using the dig command

[SuryaSekhar14]

Closed with PR #13