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systemd introductionsystemd is the main system daemon management tool on Linux system at present. On the one hand, init manages the process serially, which is prone to blocking. On the other hand, init only executes the startup script and cannot manage the service itself. Therefore, starting from CentOS 7, init has been replaced by systemd as t ...

It took bloggers many days to build DMDSC, not because of how difficult it is, but because of some details. 1. Environmental preparation 1.1 hardware facilities The virtual machine system used by the landlord is centos7. This tutorial is applicable to most virtual machine systems. It runs 2g of memory, 20g of disk, and 20g of new shared disk. ...

Basic Introduction to kubernetes and Common Commands of kubectl pod classification of k8s There are two categories of pod s: Autonomous podController managed pod Autonomous pods are managed by k8s manager, while static pod s are created and managed by kubelet Autonomous pod Autonomous pods always run in the foreground and are managed ...

As a Linux system administrator, you should know how to view the UUID of a partition or the UUID of a file system. Because most Linux systems now use UUID to mount partitions. You can verify it in the / etc/fstab} file. There are many utilities available to view UUIDs. In this article, we will show you a variety of ways to view UUIDs, and you ...

1. Creation and deletion of files (1) Practice using - p or -- parents to create multi-level directories on the desktop at the same time, such as xx/yy/zz. mkdir - p} xx/yy/zz or mkdir --parents xx/yy/zz [tom@iZbp12r8eimkkdor4011j3Z ~]$ mkdir -p xx/yy/zz [tom@iZbp12r8eimkkdor4011j3Z ~]$ ls xx #Note that if you want to create a multi- ...

I2C is a very common serial communication interface, which is used to connect various peripherals, sensors and other devices. It has been tested in the bare metal part I2C interface of I.MX6U is explained in detail. In this chapter, let's learn how to develop I2C interface device driver under Linux The focus is to learn the I2C driver framewo ...

** Chapter XIV multicast and broadcasting ** Suppose we want to send the same data to 10000 users. If TCP is used to provide services, 10000 socket connections are required. Even if UDP sockets are used to provide services, 10000 data transmissions are required. When the same data needs to be sent to a large number of clients, it will have a ...

1, Construction method At present, there are four main types. I don't need to see them again. I've compared them many times. I can directly choose the OS mode. The disadvantage is that this virtual machine can only run the function of HASS, but it has strong stability than everything else Installing HassOS in the virtualization station of Uni ...

What is git? Git is a free and open source distributed version control system (technology for managing multi person collaborative development projects) What is a distributed version control system? Users can view all the files uploaded to git locally [git clone / git pull can get the files on git] Users can submit locally even if they are ...