Programmer Think

Now learn to use qemu The installation steps are as follows: 1. Install qemu. Download directly from the official website here: QEMUhttps://www.qemu.org/ Note that after the installation, write the installation path to the environment variable. 2. Download ubuntu image: I downloaded ubuntu-20.04 3-desktop-amd64. ISO, the latest version. ...

Command introduction The locate(locate) command is used to find files or directories. The locate command is much faster than find -name because it does not search for a specific directory, but instead searches for a database, / var / lib / mlocate / mlocate db . This database contains all local file information. The Linux system automatica ...

After learning rh124, rh134 and rh254, you can take the certification examination. This is part of rh124 Chapter 1 accessing the command line 1.1 log in to the Linux system and run simple commands There are two ways to physically access Linux: tty (terminal) and console (control). There is also a concept of virtual terminal (ctrl + Alt ...

1, Backup 1.1 what is backup? Backup is to copy important data or files and save them to another place to realize data synchronization between different hosts 1.2 why backup? Data is very important in the company!!! Backup is to restore data. 1.3 can backup not be done? Important data must be backed up. Unimportant data can not be backed up ...

1. Usage included in import 1.1 include or import files Ansible can use two operations to bring content into the playbook. You can include content or import content Inclusion is a dynamic operation. During playbook operation, Ansible processes the content when it arrivesImporting content is a static operation. Before the run starts, Ansible ...

1. Introduction The Linux network card binder provides a method to aggregate multiple network interfaces into a single logical interface. The behavior of the logical interface depends on the mode. Generally speaking, different modes provide hot standby or load balancing services respectively. 2. Configure bond binding 2.1 general You ca ...

Include and import files If the playbook is long or complex, we can divide it into smaller files for easy management. Multiple playbooks can be combined into one main playbook in a modular way, or the task list in the file can be inserted into the play. This makes it easier to reuse play or task sequences in different projects. Include or ...

RH358 manage DHCP and IP address assignment – configure IPv6 address assignment This chapter describes how to configure DHCP to allocate IPv6 addresses. Although it is still a bit weak, it can be used for understanding and learning. Column address: https://blog.csdn.net/qq_41765918/category_11532281.html 1. Overview of IPv6 a ...

Displays the path from the data packet to the host. The traceroute command is used to track all paths of the data packet when it is transmitted on the network. By default, the size of the data packet sent is 40 bytes. Through traceroute, we can know the path of information from your computer to the host at the other end of the Internet. O ...

Big data engineering practice reference manual vmtools installation still cannot copy and paste, and drag and drop files reference resources (93 messages) solve the problem that the virtual machine cannot be copied and pasted between VMware and the host when running ubuntu_ Leled blog - CSDN blog_ The ubuntu virtual machine cannot copy an ...