Introduction to Linux (1) _

Introduction to Linux (1) _

LinuxFeatures

Advantages:

1. free/open-source systems

2. multi-threaded/multi-user systems

3. Good Security

4. superior memory and file management

5. Rich network functions

6. Good user interface. Graphical interface and graphic interface

Linux requires at least 4 MB of memory, so it can be used for embedded development.

 

Linux system composition:

Kernel: it is the heart of the system and implements the basic functions of the operating system.

Shell: the user interface of the system. Provide an excuse for user interaction with the System

File System: it is an organizational unit that is stored on the hard disk and agreed to be managed by the organization.

Applications: standard linux systems have a set of application sets, including text editing, online browsing, and programming.

 

Linux:

 

Common releases:Redhat, centos, suse, debian, Ubuntu

How to choose a linux release:

Stability, hardware compatibility, high efficiency, and sustainability

 

Network applications for Linux:

 

Install centos on a VM:

1. create virtual hosts and customize physical hardware
2. Specify the corresponding image Installation File for Installation
3. Select "installation", "graphical interface", or "ready-to-use" when starting the instance.
For server building, the text character interface is usually used, with better performance, speed, and security.
The graphic interface has higher requirements on memory and video card performance. More development for the use of clients.