Programmer Think

Label: classify and group various resources in k8s, and add a label with special attributes Selector: find the resource corresponding to the tag through a filtered syntax Label is an important concept in k8s. A key value pair of a label with key=value can be attached to various resources. After the summary, we will explain: Matching rules ...

In the process of online MySQL installation, since centos7 was used for the first time, it took a long time to record the successful configuration method. Modify yum source Enter the local machine to modify the yum configuration file Enter yum.com repos. D directory cd /etc/yum.repos.d/ Add the existing Yum source: / etc / yum repos ...

Linux features Openness (open source), multi-user, multi task, good user interface, excellent performance and stability Multi user and multi task: Single user: when a user logs in to the computer (operating system), only one user can log in at the same time; Single task: a task, which allows users to operate the number of tasks at the s ...

1. Construction type of Jenkins project There are many types of automatic construction projects in Jenkins, including the following three types: FreeStyle ProjectMaven ProjectPipeline Project In fact, each type of construction can complete the same construction process and results, but there are differences in operation mode and flexib ...

Dark moon penetration actual shooting range - item 8 Environment construction Network card design What needs to be prepared are three network cards, the NAT mode network card provided by the virtual machine, and two self added 19 and 18 network cards in host mode only Topological graph Specific topologies of the two practical projects ...

1) Experimental platform: punctual atom STM32MP157 development board 2) Purchase link: https://item.taobao.com/item.htm?&id=629270721801 3) Full set of experimental source code + manual + video download address: http://www.openedv.com/thread-318813-1-1.html 4) Official station B of punctual atom: https://space.bilibili.com/394620890 5) Punc ...

To realize user state protocol stack, we must understand TCP, 11 states of TCP, sliding window, congestion control, timer and so on. To use the user state protocol stack, the epoll provided by the kernel will not work. We need to implement the user state epoll ourselves. Epoll involves a callback opportunity. The callback function is to add th ...

preface 1. Server and system version Article based Tencent cloud Server linux centos7 nine 2. Why reinstall the system When Tencent cloud first bought, the security group was fully open by default and the firewall was closed by default When I operated redis, I allowed external access without setting a password. It was easy to be invaded. A ...

1, SHELL introduction preface: Computers can only recognize (recognize) machine languages (0 and 1), such as (11 million). However, our program apes can't write code like 01 directly. Therefore, if we want to run the code developed by program apes on the computer, we must find a "person" (tool) to translate it into machine language. ...

Video analysis related to linux server development: linux kernel, implementation of process scheduler, fully fair scheduler CFS Analysis of 10 classic interview questions, how does the technical direction determine the career direction c/c++ linux server development free learning address: Senior architect of c/c++ linux background server pre ...