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Interprocess communication (IPC) mode Inter process communication (IPC) mainly includes the following: 1，Nameless pipe( PIPE)And famous pipes( FIFO). 2，Signal( signal). 3，system V-IPC Shared memory. 4，system V-IPC Message queue. 5，system V-IPC Semaphore. 6，Socket. 1. Pipeline 1.1 unknown pipeline 1.2 characteristics of unkn ...

1. Introduction to LVM LVM is an abbreviation of Logical Volume Manager (Logical Volume Management), which connects several disks or disk partitions into a single block volume group to form a storage pool.Administrators can arbitrarily create logical volumes on volume groups and further create file systems on logical volumes.Administrators can ...

catalogue preface SSH Main functions of ssh server configuration file ssh Remote Login mode Service configuration scp remote replication sftp Secure FTP The sshd service supports two authentication methods Password verification    Key pair verification TCP Wrappers access control Two implementation methods of protection ...

3, Performance analysis 1. Process query: ps The man ps manual is very large and not easy to refer to, so I mainly remember several commands Example #1. List the processes that are only related to their own environment. The parent process at the top layer is the bash that allows the ps command, but does not extend to the init process ps ...

1. Basic overview 1. What is rpm? The full name of RPM is the abbreviation of RedHat Package Manager, which is developed by red hat for software package installation, upgrade, uninstall and query 2.rpm package name component? The RPM package is named after - dividing the software into parts bash-4.2.46-28.el7.x86_64.rpm bash:Software n ...

What is SELinux selinux(security enhanced linux) is a security enhanced linux system. It is not only a linux kernel module, but also a security subsystem of linux. Role of SELinux The main function of selinux is to minimize the resources accessible by the service process in the system (the principle of minimum permission) SELinux's permissi ...

1. Configure Windows system settings 1.1 developer options You need to turn on the developer option in the settings. 1.2 subsystem options You need to check the Windows subsystem for Linux in the control panel. 2. WSL version If there are no requirements for the GUI of Ubuntu subsystem, you can skip this step. However, if you want ...

Write before I always want to learn K8s, but without environment, K8s is a bit heavy.Before going to school, I rented an ESC from Aliyun, with a single core of 2G and a single machine version of K8s, which can be installed barely. It can't be done with multiple nodes, nor can Demo in the book.Since you need more than one node, because it in ...

What is docker? Is a lightweight virtual machine, is an engine It is an open source tool for running applications in linux container. docker is a lightweight virtualization solution based on container technology. docker is a container engine that perfectly encapsulates and abstracts the underlying container technologies such as cgroup and ...

What is a DATABASE Efficient media for storing and processing data (disk and memory) It is a warehouse built on computer storage equipment to organize, store and manage data according to data structure. In short, it can be regarded as an electronic filing cabinet - the place where electronic files are stored. Users can add, intercept, update, ...