Networking week 2

What are Protocol Suites and Protocols ?

A protocol is a standard that governs network communications by providing a set of rules for its operation. (a similar example of this is a simple phone call when the caller hears the word "hello" the talking can start, an engaged tone means no talking and an answering machine means again no talking. This is a very simple example of a protocol.)


There are four main Protocol Suites:

• TCP/IP (Developed by the US government and is free to use)
• IPX/SPX (Developed by Xerox used primarily on networks using the Novell NetWare)
• NetBIOS
• AppleTalk (used for Apple Computer's)

The protocols I have heard or seen in use are:

• HTTP (Hyper Text Transfer Protocol) Layer 7
• HTTPS (Hyper Text Transfer Protocol Secure) Layer 7
• WWW (World Wide Web) Layer 7
• FTP (File Transfer Protocol) Layer 7
• IP (Internet Protocol) Layer 3
• TCP (Transfer Control Protocol) Layer 4
• POP3 (Post Office Protocol 3) Layer 7
• UDP (User Datagram Protocol) Layer 4
• SMTP (Simple Mail Transfer Protocol) Layer 7
• DHCP (Dynamic Host Configuration Protocol) Layer 7
• SSH (Secure Shell) Layer 7
• IPX (Internetwork Packet Exchange) Layer 3
• SPX (Sequenced packet exchange) Layer 4
• IMAP (Internet Message Access Protocol) Layer 7

Windows Server 2000 Install Procedures.

1. Restart the PC and boot from W2k Install disk.
2. Follow on screen Instructions to begin the Windows 2000 server Install (Licence F8,etc)
3. Select and Create a Hard disk Partition
4. Format that partition with NTFS (New Technology File System)
5. Follow Onscreen Prompts to Install Windows 2000 server (region settings, Lang, Username, etc)
6. Log Into Windows server 2000 and configure device drivers and network settings
7. Run and configure Server Services. (FTP server, Web server, Application server)

Networking week 1

What is Networking and what is it used for?

Networking is the sharing of Information and resources amongst a number of computers and or devices across some sort of transmission media (Cat 5, wireless, fiber Optic).

Network Media and connection Types

• Coax (Benet connector usually in a T piece or shape)
• Cat5 (RJ45 connector)
• Wireless ( can be radio frequency, Microwave, satellite or bluetooth and others)
• Fiber Optic

What are Network Topology and some Topologies?

Network topology refers to the physical layout of a network.

Some Topologies that I know of are:

• Bus
  


• Ring



• Star



• Mesh

Why build a network?

• It saves money from shared Devices such as Printers, Modem's or Mass Storage.



• Provides Internal and External Email and communication(Outlook, Messenger)



• To Provide Data Security Levels for Internal and External Access. (Sales staff can see Accounts but customers cant)

Network Devices?

• Network Interface Card
• Hub
• Switch
• Bridge
• Router
• Gateway
• Media Receiver
• NAS (network Area Storage)
• Printer / MFP (multifunction Printer Built in Scanner)

The future network devices can and will include items such as, Smart Fridge, Automated Home control, Security cameras, Phone answering/Dialing Systems.

The OSI model.

The OSI model stands for "Open Systems Interconnection" and is a reference for layered communications and computer network protocol design. It is split into a seven layer model with each layer interacting with the layer above and below (if applicable). The OSI model was developed to help precise error detection and design compatibility for network technologies, devices and applications.

OSI Layers and Protocols

The OSI layers can be remembered with a rhyme like "Australia Post Suck They Never Deliver Packages" I found this easy to remember as its funny and partly true. The First letter of each word is the same as the OSI layers which are: Application, Presentation, Session, Transport, Network, Data, Physical.

My OSI Table.