Networking for beginners

[NetworkPeet]

THIS IS A DRAFT - I will grow this ervery Day - Please give me feedback - I will add links soon (I really dont want to give out Wikipedia links to every topic)

 

If you want to start learning about networking, here is a short guide for orientation. Feel free to ask questions or correct me. Use this following Topic words for your first Google searches. You will get deeper and depper in the Networking world - There is no end - The puzzle gets bigger and bigger and bigger...

 

1. Inform yourself about the OSI Layer Model.

• Focus on Layer 1-4
• Deep Focus on Layer 2 and 3

2. Get  a easy knowledge about networking hardware

 

Differences between

• Hub (multi-repeater)
• Switch
• Router
• Firewall

3. Details of MAC Frames and IP Packets

• Detailed MAC (Ethernet) Frame
• Detailed IP Packet
• Encapsulation Processing
• De-Encapsulation Processing

 

4. Fundamentials of a IP Network

• Unicast Address (easy)
• Subnet Address (middle)
• Broadcast Address (easy)
• Gateway Address (middle)
• Difference between MAC Address and IP Adress ---> Yes they are different!! -> Every device has both of them (middle)
• Arp Protocol (middle)
• Calculating IP Address in Binary <-> Decimal (middle)
• Subnetting octetwise (middle - hardcore)
• Subnetting bitwise (hardcore)

 

5. IP Address management (IPAM)

• Self IP (easy)
• DHCP IP (easy)
• DHCP Server (easy - middle)
• DHCP Relay (middle)
• VLAN (middle)
• Shared Vlan - outdated (Hardcore only for nerds)
• Management Methods
• What is DNS -> only fundamentals - Managing DNS servers is A HUGE topic

 

6. Learn about Routing

• Router Interfaces in Detail (Gateway)
• Routing Tables
• Flow of a whole packet through different Subnets
• Manual Routes
• Routing Protocols
• Multilayer Switch

 

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[Mikius10001]

Following  I feel like it would not be out of place to say that I'm looking forward to this.

 

Beginner myself and my job would be moderately easier with some networking understanding.

[zlolslavez]

this probably belongs here https://linustechtips.com/main/forum/30-guides-and-tutorials/

[Trikein]

1 minute ago, zlolslavez said:

this probably belongs here https://linustechtips.com/main/forum/30-guides-and-tutorials/

No, please don't. This needs to be a sticky on this Networking Forum. I see too many posts of people reporting problems and giving NO information on the issue because of a general ignorance of all things internet. Gets old repeating the same thing over and over.

 

Could you also add a "What to include when reporting slow speed?" I can write up the DOCSIS part. I have done it a couple times for other forums. Give a man a phish, he eats for a day, teach him how to phish, and he eats for a lifetime. 

[MariusJS]

If it's gonna be sticky, please include some of this: