Shulou(Shulou.com)06/03 Report--

System Hardware Classification Description

·Classified by hardware use

Home hardware devices: desktop laptops

Enterprise Hardware Devices: Server Devices

·Classified by hardware performance

Rack servers: Internet environments (dell IBM Lenovo HP Huawei Wave)

Common rack servers (tens of thousands ~ 100,000 +)

Minicomputer servers (hundreds of thousands ~ 1 million +)

Mainframe servers (millions ~ millions +)

Blade Servers: Physical Space Limitations Performance Requirements

Tower Servers: Home Server Devices

·Classified by hardware appearance

1U server: U server thickness 1U=4.45cm

2U Server:

4U Server:

System hardware components

1)CPU(Central Processing Unit) Brain calculation/control

2)Hard disk can store data (permanent storage)

3)Motherboard can connect multiple devices in series

4)Memory can store data (temporary storage)

5)Power supply equipment power supply

6)fan cooling

7)Network card to achieve communication with other host devices

8)Optical Drive Installation System

9)Array cards consolidate multiple hard drives into one piece

10)Remote management card remote boot/remote installation system

Operating system development history

1969 Unix Bell Labs

1986 Minix Professor Tan Bangning

1986 Similar uinx Stallman

Goal: GNU project--creating a unix-like system

Company: FSF Free Software Foundation

Rules: GPL General License

1)All code information must be open source

2)The code can be modified and must be explained

Results: Software (edit software query log) Interpreter (bash == shell) Kernel The Hurd(not well developed)

1991 Nektovac (Finnish University student)

GNU+ kernel ==linux

Operating System Installation Deployment

Virtual software environment deployment

Virtual Host Creation Process

install the operating system

·Modify the name of the network card

·Configure network and host names

·System partition operation

·Pre-installed software 1236

·Set root password

1)Operating System Network Configuration

How to check network connectivity: ping

How to access hosts by name: DNS1=223.5.5.5

2)Virtual Host Network Settings

Virtual NIC Mode Information: NAT Bridging Host Only

3)Remote connection configuration method

Remote connection software initialization configuration???

Remote Connection Configuration Protocol Host Address Port

4)Remote connection troubleshooting ideas

Check if the link is clear ping

Verify that the link has a security policy preventing windows firewall from being turned off

Confirm whether the service is enabled systemctl status Service name

Remote Software Configuration Description

2)Operating System Basics

What is Command Prompt?

Description of system directory structure (relative path absolute path)

Basic command syntax structure (command parameter objects)

3)system operation related commands

shutdown

4)system directory related commands

Create directory mkdir

Delete directory rm

Switch directory cd

View catalog ls pwd

5)system file related commands

Create a file touch

Edit file echo>/> vi

Copy file cp has an argument-r Copy entire directory

Move file mv

View file cat

1)Get command help information man command/ --help help /built-in command

2)Operating system shortcuts

3)Edit Command Use Tips

4)Common errors in editing commands

5)operating system directory structure

Summary may not be comprehensive enough, I will continue to work hard to learn linux, refueling!

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