Brief introduction and use of Docker

1, docker version management 1. Version management Docker engine mainly has two versions: enterprise version (EE) and community version (CE) Every quarter (1-3, 4-6, 7-9, 10-12), the enterprise version and the community version will release a stable version. The community version will provide 4 months of support, while the enterprise versio ...

Posted by RJDavison on Fri, 15 Apr 2022 16:21:54 +0300

Linux remote access and control

1, SSH Remote Management 1.SSH definition SSH (Secure Shell) is a secure channel protocol, which is mainly used to realize the functions of remote login and remote replication of character interface.SSH protocol encrypts the data transmission between the communication parties, including the user password entered when the user logs in. The ...

Posted by madcat on Fri, 15 Apr 2022 14:16:34 +0300

Linux PXE batch network installation and Kickstart unattended installation

1, PXE batch network installation PXE (pre boot execution environment, running before the operating system) is a network boot technology developed by Intel. It works in the Client/Server mode, allowing the client to download the boot image from the remote server through the network and load the installation file or the entire operating sys ...

Posted by ladokha on Fri, 15 Apr 2022 01:04:28 +0300

Xiaohaoxue Linux is continuously updated

Xiaohao learns Linux (1) 1. Pre class side dishes 1. RPM package management commands Command format for installing software RPM - IVH filename rpmThe command format for upgrading software is RPM - uvh filename rpmThe command format for uninstalling software is RPM - e filename rpmCommand format for querying software description information R ...

Posted by allworknoplay on Thu, 14 Apr 2022 19:01:03 +0300

Detailed explanation and deployment of Redis master-slave replication and sentinel mode under Centos

Detailed explanation and deployment of Redis master-slave replication and sentinel mode under Centos This article will introduce the Redis master-slave replication and sentinel mode, and then set up the master-slave replication and sentinel modes with the help of different ports of a single host The actual production environment requires ...

Posted by Awestruck on Tue, 12 Apr 2022 08:47:16 +0300

Linux independent redundant disk array (RAID)

preface Operating environment: VMware 16pro + CentOS 8 three Special statement: space is a space. 1, RAID 1.RAID overview Combine multiple hard disk devices into a disk array with larger capacity and better securityThe data is cut into multiple sections and stored on different physical hard disk devicesUsing distributed read-write t ...

Posted by jsucupira on Mon, 11 Apr 2022 21:39:02 +0300

Simple construction and operation of Python Flask service of Docker

preface Run a simple flash project in the form of Docker container step I Write py code 1. Write a simple flash project in python. Here I use PyChram to write the project Create an app Py files are as follows: (it is worth noting that Flask needs a wave of packet inversion. Move the mouse to Flask and press Alt + Enter to complete the pa ...

Posted by y2yang on Mon, 11 Apr 2022 15:05:37 +0300

Select hosts and host groups

Usually use this user to log in ssh devops@workstation 1. Match all hosts You can specify all hosts to match through all or * and view the hosts matched by all through the following instructions: ansible all --list-hosts If an error is reported; ansible \* -i hosts --list-hosts ansible ''*' -i hosts --list-hosts 2. Match the specified ...

Posted by bufo on Sat, 09 Apr 2022 12:56:08 +0300

Detailed explanation of Linux disk management

This article is based on centos7 9 operating system complete! Disk is a storage device. All slave operating systems and applications are installed on disk. 1. Disk classification There are three types of disks commonly used in servers: SATA diskSAS diskSSD diskThese three are also used in my current work place 2. Disk capacity Disk st ...

Posted by disaster77 on Wed, 06 Apr 2022 03:36:36 +0300

Install MySQL in 3 minutes: environment preparation

OS configuration – RHEL/CentOS 1. Configure hosts /etc/hosts echo "192.168.1.71 ms01" >>/etc/hosts echo "192.168.1.72 ms02" >>/etc/hosts echo "192.168.1.73 ms03" >>/etc/hosts echo "192.168.1.74 ms04" >>/etc/hosts 2. Configure environment variables echo "export LANG=en_US" >>~.bash_profile 3. Resource a ...

Posted by Rianna on Tue, 05 Apr 2022 21:34:37 +0300