Programmer Group

File packaging and compression   Self feeling: it's easy to learn how to pack and compress files. Although there are many compression names, several are not commonly used, and several commonly used options are basically universal. It will produce a good result. Just learn the option of one command and remember the names of the remaining command ...

About three months ago, we applied for SSL certificate through let s encrypt. Now it's almost the same time. When we boarded the server, we were going to run the certificate update program, but there was a problem when we executed it: The version of pyOpenSSl is too low. According to some practices on the Internet, we ...

1. Log in with root admin@lnxServer:~$ mysql -uroot -p123456   Warning: Using a password on the command line interface can be insecure.   Welcome to the MySQL monitor.  Commands end with ; or \g.   Your MySQL connection id is 154   Server version: 5.6.19-0ubuntu0.14.04.1 (Ubuntu)      Copyright (c) 2000, 2014, Oracle and/or i ...

nginx download and installation nginx download address: nginx download address Install compiler and dependency Libraries yum install gcc gcc-c++ zlib-devel pcre-devel openssl-devel openssl-libs openssl -y nginx installation: Run to nginx root: Make & & make install After the installation is completed, you ...

Today, when I was playing Weibo, I accidentally thought of using python to crawl and download a few pictures. However, it is found that Weibo is different from ordinary websites, To get a little content, you need to get a cookie from the browser first. Otherwise, it can't jump automatically. At present, I haven't found a good solution, so I fo ...

kubernetes cluster deployment Three official deployment methods1.minikubeminikube is a tool that can run a single point of kubernetes quickly locally, only for testing K8S or daily developmentDeployment address: https://kubernetes.io/docs/setup/minkube/2.kubeadmKubeadm is also a tool that provides kubeadm init and kubeadm join for rapid deploy ...

Introduction and advantages Using this script, you can judge whether the system memory usage exceeds the set percentage It can restart the program when the warning value is exceeded It can record the restart process and send the specific LOG mail to the designated addressee Crontab schedule can be set to run every other period of time prepara ...

Laravel has its own SwiftMailer library, which integrates a variety of email API s and can easily send emails. We use the SMTP (Simple Message Transfer Protocol) simple mail transfer protocol, which is generally understood as the mail sending server. 1. Open POP3 and SMTP services 1.1. Here we take QQ email as a case Settings - > account - & ...

This article mainly reveals the loading of Spring Cloud Gateway and how to handle the request process from the source point of view. 1. Overview of spring gateway Spring Cloud Gateway is an official gateway developed by spring based on Spring 5.0, Spring Boot 2.0, Project Reactor and other technologies. Spring Cloud Gateway aims to provide a ...

Python 3.7.3 installation The default version of Python installed on CentOS 7 is 2.7.5. The older version of python that comes with the system is dependent on many other software environments of the system, so you cannot uninstall the original Python, but you can install another version of Python [root@python ~]# python -V Python 2.7.5 Prepari ...