The first week of self-study linux exercises

1. Classification of computers
   02 Types of servers:

2. Detailed hardware composition (server):

   2. CPU-processing (operation) task issued instruction information (key)
      CPU channels: how many CPUs in the server single channel = 1 CPU dual channel = 2 CPU
      CPU core number: determines the server's parallel (simultaneous) processing task capacity

   3. CPU fan — skin, heat dissipation

   4. Memory-storage device (temporary storage)
      Disadvantages:
      Advantages:

      Buffer:
      Cache:

   5. Disk-storage device (permanent storage)
      Advantages:
      Disadvantages:

   6. Motherboard — integrate all hardware

   7. Graphics card (integrated) — display information to the screen (output device)

   8. Sound card (integrated)-output sound information (output device)

   9. Keyboard and mouse — input device

3. Rack-mounted service brand and server configuration parameters:

4. Summarize the concepts of buffering and caching (cache server)

5. Summarize the case of enterprises storing data

6. How to avoid data loss in memory for large enterprises

7. Operating system knowledge concept/installation and deployment operating system

   1. Download the vmware software,
      download the system image file, install centos7.6

09 Install the xshell software on your computer:

10 What are the release versions of Linux:
11 Server hardware composition:
12 Questions:
System partition configuration, such as how to partition a hard disk 100G:
13 Questions to create users
System administrator user: root password 123456
Ordinary system user: zhangkai password 123456
Operation and maintenance workflow
01. Prepare/check the environment
02. Backup before operation (return)
03. Save after
configuration 04. Check after configuration is complete

14. Realize remote connection xshell
15 What are the types of remote software:
16 How to use centos7's troubleshooting mode to reset the password:
17 System installation and deployment process:
18 Questions about virtual software network mode:
19 Questions about installing centos on virtual machines
20 For viewing the current directory information:
21 View the current location:
22 How to
use the virtual software (snapshot function suspension function)
2) Virtual software network mode
3) Remote connection troubleshooting method
4) Management system must know and must know
5) System is important Command operation
a System running command
b Directory related commands

23 How to edit an empty file

1. Open the file for direct editing
   vi/vim — the command used to edit the file
   vi zhangkai.txt
   last line mode command:
   after modifying the file, force exit command:
   no file modification exit command:
   save and exit: command

24 There is information on the screen that I want a high salary:
25 Put the information displayed on the screen into the file 1.txt
26 Create a new ad folder in the current directory Create a file file in the ad file and copy it to the /home directory
27 Put the ad file Folder all content move /home

28 Delete all the files and directories beginning with a under /root
29 Write 20 learned commands and their meanings
30 Special system symbols> >> meanings
Linux apprentice counseling self-study method:
1. You tell me the expected salary, I will set you Study plan
2. Complete the interview assessment according to my study plan. Generally, a written test will be conducted every Friday. If you do not pass the customs, continue to fight and upgrade. By continuing to study the next stage of the study plan
3. On your way to learning technology and at work, You will encounter a variety of problems. Seeking a master to help you solve your puzzles will make your learning effect more effective
. 4. Analyze how to answer the various questions encountered in the interview, and really help you find a good job. I will also recommend to you to make the success rate higher.
5. I will also regularly assign work tasks to you for you to do to gain work experience. This is what training institutions cannot do. It is convenient to obtain work experience and to facilitate resume packaging
. 6. Learn from me, and I will treat you as my recruiting junior operation and maintenance , I will give you a probationary work arrangement for you to do your assessment.
7. I have experienced the distress of learning Linux, no one is pointing, progress is slow as a snail, and I am very honored to receive help and guidance from many people, so today I want to help and I really want to learn Friends of, don’t make detours.
I wish you all to stick to your original aspirations and achieve success in your studies!
8. You still have to learn from operation and maintenance after working for more than 5 years. Do not learn from people who have been working for one year or those who have not done operation and maintenance. Following such people may make you
love linux in the ditch , learning is very confused, and economical. If the conditions are not good, you can’t go to the training institution to study systematically. You can ask me and I will help you to learn on your own. Spending a little money can also make you a successful career change. Those who are interested can add WeChat kaiyue8899