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- After QQ was refactored with Electron, it finally realized the unification of the three-terminal architecture of Linux, macOS, and Windows!
- After 24 years of changes, the national application QQ has become a memory of the post-80s/90s generation and the main battlefield of the post-00s generation. Now, because of the release of a latest version of QQ, it has attracted the attention of technical people of all ages.
- Linux Operation and Maintenance 1844 2023-08-01 16:56:33
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- Essential security settings for Linux servers, recommended collection! ! !
- Below I will tell you some simple methods to improve the security factor of the server. My cloud server is configured in this way. Although it is a bit troublesome, I feel more at ease.
- Linux Operation and Maintenance 1398 2023-08-01 16:51:54
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- Shell is an efficient command for analyzing log files, super easy to use!
- My own small website runs on Alibaba Cloud's ECS. I occasionally analyze my website server logs to see the number of visits to the website. See if there are any hackers causing damage! So I collected and sorted out some server log analysis commands. You can try them!
- Linux Operation and Maintenance 1580 2023-08-01 16:47:46
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- There are a lot of logs in the Linux server. How to read the logs correctly and quickly locate errors?
- There are very few logs obtained with grep, we need to check nearby logs. This is what I did, first: cat -n test.log | grep "keyword" to get the line number of the key log.
- Linux Operation and Maintenance 1594 2023-08-01 16:45:25
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- Summary of the 600 most powerful Linux commands
- Today, I bring you a very comprehensive article summarizing Linux commands. It is also a very frequently used operation command in our daily work. There are a lot of commands. I suggest you to save it first and then read it.
- Linux Operation and Maintenance 970 2023-08-01 16:39:31
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- This article is enough for monitoring systems! Common monitoring tutorials such as Zabbix and Prometheus
- Monitoring is commonly known as the "third eye". It is a system that we deal with almost every day. As the saying goes: no monitoring, no operation and maintenance, the status of monitoring is self-evident, especially in the era of operation and maintenance automation, traditional operation and maintenance, DevOps, Or SRE, monitoring is a necessary skill.
- Linux Operation and Maintenance 1588 2023-08-01 16:31:55
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- Summary of 100 knowledge points that Linux operation and maintenance & network engineers should know!
- A link is a connection between two devices. It includes the cable types and protocols used for one device to communicate with another device.
- Linux Operation and Maintenance 1467 2023-08-01 16:26:40
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- 7 Linux operating systems with beautiful looks!
- There are many Linux distributions, here are 7 beautiful Linux distributions.
- Linux Operation and Maintenance 1813 2023-08-01 16:19:58
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- RISC-V Linux assembly startup process analysis
- The assembly startup part of RISC-V Linux is relatively simple and not too complicated. There are two core parts: page table creation and redirection. Page table creation is written in C language. Today we will analyze the assembly part first. We will first take you to analyze the overall assembly startup process, and then analyze redirection.
- Linux Operation and Maintenance 2354 2023-08-01 15:40:40
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- RISC-V Linux startup page table creation analysis
- The page table creation when RISC-V Linux starts is relatively easy to understand. It is created in C language and has relatively little code. The main two page table creation functions are setup_vm() and setup_vm_final(). After understanding some of the address formats of sv39, it will be easier to analyze the source code.
- Linux Operation and Maintenance 2656 2023-08-01 15:39:36
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- Practical combat | RISC-V Linux entry address 2M reserved memory optimization
- The previous article analyzed the page table creation for RISC-V Linux startup. It was mentioned that the RISC-V Linux entry address must be 2M aligned. Today I will talk about how to solve the 2M alignment problem, or how to optimize part of the memory.
- Linux Operation and Maintenance 1518 2023-08-01 15:37:59
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- The system obviously has a lot of memory, but it cannot allocate a large piece of memory?
- Today’s question: The system obviously has a lot of memory, but it can’t allocate a large piece of memory? Why is this? This problem involves an aspect of memory management - memory fragmentation.
- Linux Operation and Maintenance 1590 2023-08-01 15:37:08
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- A few tips you must know when compiling the Linux kernel
- To compile Linux, you usually only need to run make menuconfig to configure the modules to be compiled, and then run make. Linux defaults to local compilation, which means compiling the kernel used by the local machine. In embedded development, cross compilation is often required. To do cross compilation, you need to add macro definitions after the make command, such as cross compilation to the arm target.
- Linux Operation and Maintenance 1593 2023-08-01 15:30:06
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- Linux driver | Create sysfs interface in driver
- In some Linux development boards, you can often see the echo method to directly control the hardware or modify the driver. In fact, this is because the sysfs interface is provided in the driver for users to use, so that users can view it through cat or echo commands. and modify the values of some variables in the driver.
- Linux Operation and Maintenance 1554 2023-08-01 15:28:30
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- Linux driver | procfs interface creation
- The previous article introduced the creation of the sysfs interface in the Linux driver, and today we will introduce the creation of the procfs interface. procfs: can implement operations similar to cat /proc/cpuinfo.
- Linux Operation and Maintenance 1667 2023-08-01 15:26:10
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