Programmer Group

On October 9, I published an article entitled**< Do you know the reason why the server generates a lot of TIME_WAIT? >**Articles On the day after the article was published, some readers pointed out my mistakes Here I would like to thank this reader in particular. I think every mistake is an opportunity for my own progress and growth ...

1, Docker introduction 1. Introduction Docker is an open source application container engine and a lightweight container technology. Open source based on Go language and Apache 2.0 protocol. Docker allows developers to package their applications and dependency packages into a lightweight and portable container, and then publish them to an ...

Firewall Firewall function In the computer field, firewall is a device used to protect information security. It will allow or restrict data transmission according to user-defined rules. A device used to protect intranet securityProtection according to rulesUser defined rulesAllow or deny access to external users Firewall classifica ...

2021SC@SDUSC 1, Web part source code analysis 1. Brief description The most users contact the OSSIM platform is the Web UI. They can easily obtain various security analysis charts through the web. As ordinary operation and maintenance personnel or monitoring personnel, most operations are completed through the Web UI. The Web UI interface ...

1, YUM overview 1.1 introduction to yum warehouse yum is a software update mechanism based on RPM package (short for red hat package manager), which can automatically solve the dependencies between packages. It solves a lot of time for finding and installing dependent packages in daily work Why does dependency occur? Because linux itself ...

The web backend on the server often needs to run multiple processes at the same time, and each process needs to exchange data. This function can be realized in python with the help of multiprocessing. Further, after the process is interrupted, we want developers to receive messages for improvement and maintenance at the first time, which ne ...

catalogue preface 1, Introduction to Nginx 2, Install Nginx service 1. Environmental preparation 2. Install dependent packages   3. Compile and install Nginx 4. Check, enable and add system management 5. Add nginx system service   2, Understanding Nginx profiles conf file     nginx.conf main configuration file 3, ...

Kubernetes 1. Introduction to kubernetes 1.1 evolution of application deployment mode There are three main periods in the way of deploying applications: Traditional deployment: in the early days of the Internet, applications will be deployed directly on physical machines Advantages: simple, without the participation of other techno ...

preface JumpServer is the first open source fortress machine in the world. It uses GNU GPL v2.0 open source protocol. It is an operation and maintenance security audit system conforming to 4A specification. JumpServer is developed in Python, follows the Web 2.0 specification, and is equipped with the industry-leading Web Terminal scheme, ...

Article references: Installing firewall in Centos7 https://www.cnblogs.com/anxminise/p/9650104.html Firewalls (firewalld and iptables) https://blog.csdn.net/weixin_40658000/article/details/78708375 Operation commands of CentOS7 firewall https://www.cnblogs.com/leoxuan/p/8275343.html https://blog.csdn.net/wangleiqqaaaaa/article/details/1034086 ...