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After installing Ubuntu 18.04 on the newly purchased Lenovo ideapad-330C notebook, I found sadly that there is no wireless network, fortunately, the cable can still be used. Then I searched the Internet and found that many people encountered this problem, and some people gave solutions. Reference link: ThinkPad e470c (integrated network card r ...

Sometimes you need to deploy multiple Tomcat on a server, and distinguish them through different ports, such as reverse proxy. But I don't want to simply copy tomcat, which is not convenient for future upgrade or management. At this time, I need to configure a single machine with multiple instances of ...

Recently, the company has been promoting containerization and k8s, and the project will be changed to Docker deployment. There are several node projects in charge of the project, so you can only learn Docker from scratch. install Docker supports windows, MAC, Linux, tutorial reference Docker Installation Tutorial. Docker is recommended for Mac ...

Usually, we do this by connecting MongoDB from the command line: mongo -u <user> -p <pass> --host <host> --port 28015 Or use the standard connection string address URI: mongodb://[username:password@]host1[:port1][,...hostN[:portN]][/[database][?options]] # for example mongo mongodb://127.0.0.1:27017 It can also be used direct ...

1. Preface 1. When perf monitors the system calls of the process, a large number of swapper processes will appear 2. The official description of the process is that swapper is executed when no other tasks are running on the CPU.In other words, swapper means that the CPU did nothing and ran to rest 3. This article will observe the performance ...

How to make matplotlib display Chinese smoothly in Ubuntu 16.04 1. Identify the matplotlib you are using 2. Download simhei font for Ubuntu 16.04 3. Modify the matplotlibrc file 4. Delete ~/.cache/matplotlib/ 5. Close the python kernel, reopen and ...

Today, the svn version control service is deployed in the Ubuntu environment. 1. Download and Install # apt-get install subversion 2. Creating directories # mkdir /home/svn # mkdir /home/svn/repository # chmod -R 777 /home/svn/repository 3. Creating warehouses # svnadmin create /home/svn/repository View the repository directory: # cd /home/svn/ ...

Before using docker, we need to understand three core concepts of docker: mirror, container and warehouse. This chapter mainly introduces the use of docker mirrors. There are too many concepts on the Internet. View mirror information After installi ...

Hello, I want to share with you my recent data test for nutsdb. Test items github address: https://github.com/xujiajun/nutsdb cause The cause of the matter is this. issue In short, the memory is too high to use. Maybe many people don't know NutsDB. In a nutshell, NutsDB is a built-in KV database written in Go language several months ago, ...

Proper Local Source Setup for apt Intranet under ubuntu Why is it built correctly because the construction process copies with the pit encountered on the web, and the amount is 100g at a time.What's more, the 16.04 system uses the 14.04 source, prompting apt-get install-f to execute. Never execute this command. I feel afraid to use this command ...