Programmer Help

Here to show you a simple interrupt program in Linux 1, View interrupt The common application of interrupt is in the driver, such as our keyboard and mouse. Every time we click, an interrupt will be generated, so that the computer can recognize it. The experiment is to virtualize a device, register the device in the system, and then use the i ...

Docker storage volume of docker COW mechanism Docker image is composed of multiple read-only layers. When the container is started, docker will load the read-only image layer and add a read-write layer at the top of the image stack. If the running container modifies an existing file, the file will be copied from the read-only layer below the ...

COW mechanism Docker image is composed of multiple read-only layers. When the container is started, docker will load the read-only image layer and add a read-write layer at the top of the image stack. If the running container modifies an existing file, the file will be copied from the read-only layer below the read-write layer to the read ...

Linux device driver learning notes - Advanced Character driver operation chapter - Note.3[ioctl interface] When transmitting data between the application layer and the kernel layer, for example, if only 1 and 0 are used to control the operation of LED lights on and off, there are many unstable factors. One byte of data may be changed or lo ...

catalogue 1, Docker Harbor overview 1. Advantages of harbor 2.Docker private warehouse architecture 3.Harbor configuration file and related parameters 2, Harbor builds Docker private warehouse 1. Environment and needs 2. Install docker compose 3. Install harbor-offline-installer-v1.2.2 4. Configure the Harbo parameter file 5. View Har ...

1. Introduction zabbix is an enterprise class open source solution based on WEB interface to provide distributed system monitoring and network monitoring functions. zabbix can monitor various network parameters to ensure the safe operation of the server system; Flexible notification mechanism is provided to enable system administrators to qui ...

Experimental requirements 1. According to the topology prompt, enable OSPF routing protocol for each route, divide corresponding areas, and verify the neighbor relationship and database information, so as to ensure the interoperability of the whole intranet. Among them, the loopback entry on R7 is required to be introduced as an external entr ...

Docker Docker installation 1. Uninstall old sudo yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-engine 2. Install the r ...

catalogue 1, Harbor 1. Harbor introduction 2. Characteristics of Harbor 3. Harbor composition 2, Deploy 1. Deploy docker compose service 2. Client upload image 3, Maintenance management Harbor 1. Create a project from Harbor Web 2. Create Harbor user summary There are rolling, blue-green, Canary / grayscale methods for online publi ...

RBAC access control Users Accountspreface:ServiceAccount and Users Account authentication have been introduced and created earlier, but the final test found that Users Account does not have access rights. This section describes RBAC authorization for ServiceAccount and Users Account authenticationWhat is RBAC?RBAC is Role-Based Access Control. ...