Tag：kernel
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Time：2021-7-29
HTML commonly used meta complete Meta tag is an auxiliary tag in the head area of HTML language. It is located between the head tag and the title tag in the head of HTML document. It provides information invisible to users. Meta: i.eMetadata (metadata)Is the data information of the data. Metadata can be invoked using […]
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Time：2021-7-28
preface Welcome to the operating system series, which is still explained in the form of illustration + vernacular, so that Xiaobai can understand it and help you get started quickly This chapter begins with the introduction of processes, threads and collaborative processes. I believe many white people do not understand these concepts clearly. Here are […]
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Time：2021-7-27
This is the first time that a blogger has written an open-ended technical article. The purpose of writing this article is not only to summarize the knowledge learned, but also to help novices. Because in the process of learning, it is also oriented to a certain degree of programming, resulting in a lot of pits, […]
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Time：2021-7-20
Take the kernel version 3.10 as an example, the kernel version 4.1 + has some changes when dealing with fin-wait-2, which will be mentioned later The code should be reasonably simplified TL；DR Time of Linux TCP_ The timeout of wait status is 60 seconds by default and cannot be modified Fin of Linux TCP_ WAIT_ […]
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Time：2021-7-17
Docker installationdocker-for-window、docker-for-mac、centos windows installer window 7+ installdocker toolbox docker toolboxcontain: Download client:Download address window 10 docker-for-windows docker-compose Example learning – laradock Mac OS installation HomebrewInstall, install command:brew cask install docker Download client:Download address CentOS installation requirement: Centos7The above requirements are: 64 bit::, kernel version higher than: 3.10:: Centos6.5The above requirements are: 64 bit::, kernel version […]
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Time：2021-7-17
linux([ ˈ l ɪ n ə What is it? What shall we talk about this time? Let’s talk about it this timelinux([ˈlɪnəks])What is itlinux([ˈlɪnəks])What about it? thislinux([ˈlɪnəks])Ah, in fact, we deal with each other every day. Don’t we have to visit the server to order meals and play games? thislinux([ˈlɪnəks])It’s the serverKernel (kernel)。 What we […]
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Time：2021-7-16
In the maintenance of Linux server, file management has always been a thorny problem: FTP / SMB / WebDAV installation steps are cumbersome, and the configuration of user permissions is also more complex. The most important thing is that the above several transport protocols are not encrypted by default, and it takes extra time and […]
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Time：2021-7-16
Linux and Ubuntu: We often say that Linux operating system and Ubuntu operating system are incorrect. Strictly speaking, Linux is not an operating system, but a kernel of the operating system. Because Linux is open source and free, programmers can change it according to their own interests and inspiration and combine it into the operating […]
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Time：2021-7-14
View distro Recall last time From the help we can know that name – a can get all the information uname -a From it, we know that there is Ubuntu, which seems to be a kind of distribution So what is a distribution? What is a distribution? We can’t do anything with Linux kernel. We […]
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Time：2021-7-13
Recent projects have also been linked to Linux Kernel technology, debugging kernel and kernel module, modifying kernel source code, is one of the important technical means of learning kernel. When applying these technologies, there is a basic requirement, that is, compiling the kernel. Therefore, before analyzing the kernel debugging technology, this essay gives the […]
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Time：2021-7-12
Because of the maintenance of the blog Garden, the kernel compilation process has not been released. Now share the whole kernel process. This essay gives the compilation process of the kernel. Before compiling, you need to refer to my previous essay: Compilation preparation and implementation process of Ubuntu 20.04 Linux kernel (version 5.4.0) – preparation […]
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Time：2021-7-9
Linux traditional IO Hello everyone, I am a piece of data lying on the Linux disk. Now to send me from the disk to the network card, I need to go through the following steps: Read operation As shown in the figure above: the operating system divides memory into kernel space and user space. First, […]
