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 Linux server running script appears

The "command not found" solution for running scripts on Linux servers

Here, we may have a "command not found" error prompt when installing and running scripts on the Linux server. What is the problem? In this article, Lao Zuo sorted out the reasons for the possible "command not found" and solved the test. 1. The command does not exist. We need to

 What can Python do? Fields and industries that six Python languages can engage in | Lao Zuo's notes

What can Python do? The fields and industries that six Python languages can engage in

Python language plays an important role in the current Internet. For example, it can be used to build websites, crawl data and analyze big data. AI, including artificial intelligence, can be developed in Python. At least in the Internet language, Python is the leading language. It is simple, easy to read, easy to learn, and has a rich library

 Compare the difference between microservice architecture and distributed architecture in four aspects | Lao Zuo's notes

Compare the difference between microservice architecture and distributed architecture in four aspects

Microservice architecture and distributed architecture are two different architecture design methods, each with advantages and disadvantages. How do we usually choose when designing architecture? One is based on our experience and technology, and the other is based on the requirements and characteristics of the project. In this article, Lao Zuo sorts out the differences and advantages of the two architecture technologies, and then we can choose which one to use when designing

 Website appears

"DNS_PROBE_FINISHED_NXDOMAIN" solution policy appears on the website

Today, the customer reported that his website was prompted with an error when he opened it. Here, when I opened it, I saw an error of "DNS_PROBE_FINISHED_NXDOMAIN". Generally, this error indicates that the domain name resolution failed. DNS_PROBE_FINISHED_NXDOMAIN means that DNS cannot be resolved to the destination

 Process record of modifying the default Nginx configuration path | Lao Zuo's notes

The process record of modifying the default Nginx configuration path

In general, we will automatically configure the Nginx configuration information path in different WEB one click package environments. But sometimes we may need to adjust the path. How to adjust the default Nginx configuration path? Note: If you are not sure, we can take a snapshot backup in advance. 1. Enter Nginx configuration directory to use

 What if the website doesn't have a certificate? There may be a problem if the website does not install an SSL certificate | Lao Zuo's notes

What if the website doesn't have a certificate? There may be a problem if the website does not install the SSL certificate

Website security certificate is also called website SSL certificate. Now we see that many websites have a green lock in front of their websites, or enterprise certificates and enterprise name authentication. The URL is directly encrypted with HTTPS. Some netizens wondered what would happen if the SSL certificate was not installed? I can also understand the idea of these friends. It really needs more to deploy SSL certificates on the website

 Problem Analysis and Solution Strategies of Ubuntu Black Screen Unable to Access the System | Lao Zuo's Notes

Analysis and solution of the problem that the Ubuntu black screen cannot access the system

Sometimes when we use the Ubuntu server image as the desktop environment, it turns black when we boot up. What is the reason for the black screen? Here are some problem solving strategies to try. 1. Check the hardware connection to ensure that the computer power supply and monitor are connected properly. Check whether the monitor power cable, VGA/HDMI/DVI cable

521 error occurs when WordPress starts CloudFlare CDN

When the WordPress website opens Cloudflare and a 521 error occurs, it usually means that the Web server cannot establish an effective connection with the edge server of Cloudflare. The following are some possible solutions: 1. Check your source server to make sure that your source server is running normally and there is no network

 Difference between version control Git and GitHub | Lao Zuo's notes

Difference between version control Git and GitHub

Git and GitHub are two different concepts related to version control and code hosting. Git is a distributed version control system that allows developers to track and manage code changes in projects. With Git, you can create a code repository, submit the code to the repository, and record the change history of each submission. Git provides powerful functions, such as