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- Classic Thirteen Questions About Shell Scripts
- We know that the operation of a computer is inseparable from hardware, but it cannot directly operate the hardware. The driver of the hardware can only be controlled through a software called "OS (Operating System)." Strictly speaking, Linux is an operating system (OS).
- Linux Operation and Maintenance 1538 2023-08-03 15:03:00
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- Summary of Linux performance optimization knowledge points · Practice + Collection Edition
- The essence of the performance problem is that the system resources have reached the bottleneck, but the request processing is not fast enough to support more requests. Performance analysis is actually to find the bottlenecks of the application or system and try to avoid or alleviate them.
- Linux Operation and Maintenance 821 2023-08-03 15:01:50
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- Summary of Linux performance all-round tuning experience
- The essence of the performance problem is that the system resources have reached the bottleneck, but the request processing is not fast enough to support more requests. Performance analysis is actually to find the bottlenecks of the application or system and try to avoid or alleviate them.
- Linux Operation and Maintenance 1259 2023-08-03 14:59:49
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- Linux - 11 steps to teach you how to perfectly check whether your server has been compromised
- As open source products become more and more popular, as a Linux operation and maintenance engineer, it is crucial to be able to clearly identify whether abnormal machines have been hacked. Based on my own work experience, I have sorted out several common situations where machines have been hacked. for reference
- Linux Operation and Maintenance 1976 2023-08-03 14:52:37
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- Classic Thirteen Questions about Shell Scripts You Should Know
- We know that computers cannot operate without hardware, but users cannot directly operate the hardware. The hardware drivers can only be controlled through a software called an operating system (OS). Strictly speaking, Linux is just an operating system (OS), which we call the kernel.
- Linux Operation and Maintenance 1362 2023-08-03 14:50:01
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- Does Linux server need to be registered?
- Linux servers need to be registered. In mainland China, no matter whether the server uses Linux or other operating systems, as long as it provides Internet information services, it needs to be registered. Filing mainly refers to submitting relevant information of a website or network service to relevant departments for review and registration in order to supervise and manage the legality and security of network services. The purpose of registration is to ensure the legality of network services and prevent the spread of illegal information and the occurrence of network security issues.
- Linux Operation and Maintenance 1449 2023-08-03 14:38:19
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- Can programs written in assembly be used on Linux?
- Programs written in assembly can be used in Linux, but they need to follow the following points: 1. Follow the ABI standard of the Linux system to ensure that the program is compatible with the interface of the operating system; 2. You need to use Linux system calls to access the functions of the operating system. You need to use Specific instructions to trigger system calls; 3. Need to understand the function calling specifications of the C language to correctly use the library functions provided by the Linux operating system to complete some advanced functions; 4. Need to understand the architecture and instruction set of the target computer, and Resources such as registers and memory need to be manually managed.
- Linux Operation and Maintenance 1702 2023-08-03 14:33:12
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- How to compare two text files in linux
- How to compare two text files in Linux: 1. The diff command, "diff file1.txt file2.txt", can compare two files line by line; 2. The vimdiff command, "vimdiff file1.txt file2.txt", can be divided into Display two files on the screen; 3. cmp command, "cmp file1.txt file2.txt" compares two files byte by byte; 4. comm command, etc.
- Linux Operation and Maintenance 3335 2023-08-03 13:42:47
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- How to cut files in linux
- How to cut files in Linux: 1. Use the split command to cut a large file into multiple smaller files, the syntax is "split [option] file name [prefix]"; 2. Use the dd command for conversion and copying The file tool can also be used to cut files. The syntax is "dd if=file name of=output file name bs=block size count=number of blocks"; 3. Use the csplit command to cut the file into regular expression matching patterns. Tool syntax "csplit[options]filenamepattern" for multiple files.
- Linux Operation and Maintenance 7772 2023-08-03 13:35:07
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- How to set the first few lines of a file displayed in Linux
- How to set the first few lines of a file in Linux: 1. Use the head command to display the first n lines of the file by specifying the parameter -n; 2. Use the cat command in combination with the pipe and head command to pass the output of the cat command through the pipe (| ) is passed to the head command to display the first few lines of the file; 3. Using the sed command, you can use the sed command combined with the line number to display the first few lines of the file; 4. Using the awk command, you can use the awk command combined with the NR variable to display the file First few lines. 5. Other text editing tools, etc.
- Linux Operation and Maintenance 3026 2023-08-03 12:00:36
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- How to use Linux for security hardening and vulnerability repair
- How to use Linux for security reinforcement and vulnerability repair In today's digital world, security has become an important factor that cannot be ignored. Especially for users using Linux operating systems, it is particularly important to reinforce and repair system vulnerabilities. This article will introduce some common methods and techniques to help you better use Linux for security reinforcement and vulnerability repair. Update your system and software First, make sure your Linux system and all installed software are up to date. Developers frequently release security updates and patches to fix
- Linux Operation and Maintenance 1681 2023-08-03 11:39:23
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- How to use Linux for user and permission management
- How to use Linux for user and permission management Introduction: In the Linux operating system, user and permission management is a very important part. Properly managing users and permissions can ensure the security and stability of the system. This article will introduce how to use Linux for user and permission management, and attach some code examples for reference. 1. Create a user. To create a user in Linux, you can use the useradd command. Here is the sample code to create a user named user1: sudouseraddu
- Linux Operation and Maintenance 1650 2023-08-03 11:39:11
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- How to use Linux for package installation and updates
- How to use Linux to install and update software packages 1. Introduction Linux is a common operating system that is famous for its high flexibility, security and stability. In Linux, the installation and updating of software packages is a very important task. This article will introduce how to use Linux to install and update software packages, and provide some code examples for reference. 2. Software package manager In Linux systems, commonly used software package management tools include: Debian and its derivatives (such as Ubuntu
- Linux Operation and Maintenance 3067 2023-08-03 11:33:35
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- How to use Linux for CPU utilization optimization
- How to use Linux for CPU utilization optimization Summary: In Linux systems, optimizing CPU utilization can improve system performance and resource utilization efficiency. This article will introduce some common CPU utilization optimization techniques and give corresponding code examples. 1. Use the process scheduling algorithm to modify the process scheduling policy: The Linux system uses the completely fair scheduling (CFS) algorithm by default, and the scheduling policy can be modified according to actual needs. For example, setting the process scheduling policy to the real-time scheduling (RT) algorithm can allocate
- Linux Operation and Maintenance 1968 2023-08-03 09:06:18
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- How to use Linux for network service configuration and optimization
- How to use Linux for network service configuration and optimization Introduction: In today's Internet era, network service configuration and optimization is one of the important links to improve system performance and security. As a popular operating system, Linux has a wealth of network service tools and functions that can help us achieve efficient network service configuration and optimization. This article will introduce some commonly used Linux network service configuration and optimization techniques, and provide corresponding code examples. 1. Network service configuration Configure the network interface First, we need to configure the system’s network
- Linux Operation and Maintenance 1821 2023-08-02 23:57:21
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