Linux simple knowledge point sharing-linux operation and maintenance

Recommendation: “Linux Tutorial”

• In the Linux system, access the device as a file.
• When the Linux kernel boots, read the file system to be loaded from the file /etc/fstab
• In the Linux file system, each file is identified by an i node
• All disk blocks are composed of four parts, which are: boot block, dedicated block, i-node block, data storage block
• The use of the process started by the foreground: ctrl+c is prohibited
• When installing the Linux system to partition the hard disk, there must be two types of partitions: file system and swap partition.
• The important task of network management is to monitor and control
• The kernel is divided into four subsystems: file management system, I/O management system, memory management system and process management system.

Linux boot process?

• Host power-on self-test, load BIOS hardware information
• Read MBR boot file (grub, lilo)
• Guide linux kernel
• li>
• Run the first process init (the process number is always 1)
• Enter the corresponding run level
• Run the terminal, enter the user name and password

What parts does the Linux system consist of?

Linux system kernel, shell, file system, application

How to plan a Linux host, What are the steps?

• Determine what the machine is used for, such as web, db, or game server.
• After confirming, it is necessary to determine how the system needs to be installed, which systems are installed by default, and how to partition them.
• Which parameters of the system need to be optimized, which users need to be created, etc.

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