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Contents of this article Download files from FTP server 22. Continuous input of 5 numbers less than 100, statistic sum, minimum and maximum 23. Assign the results to variables, respectively 24. Batch modification of file names 25. Statistics of the total number of files in the current directory ending with. html 26. Scanning host port sta ...

This article describes how to deploy a highly available k8s cluster through Kubespray. The k8s version is 1.12.5. 1. Deployment Manual Code Warehouse: https://github.com/kubernetes-sigs/kubespray Reference documents: https://kubespray.io/#/ 2. k8s master machine configuration 3. Installation steps of k8s cluster Step 1: Set up Secret-Free Log ...

Git is divided into 3 sections, workspace, staging area, local library(ix) Resources Additional information (concise): https://www.yiibai.com/git Other data (more complex): https://www.liaoxuefeng.com/w... Git Quick Start: https://www.bilibili.com/vide... Git Advances: https://www.bilibili.com/vide... Installation Official download: https:// ...

iptables The iptables service is used to process or filter traffic policy items (rules). Multiple rules can form a rule chain, which is categorized according to the location of data packet processing. Preprocessing data packets (PREROUTING) before routing; Processing incoming data packets (INPUT); Processing Outgoing Packets (OUTPUT); Proc ...

Both gateway server and website server adopt centos 7 operating system. Gateway servers are equipped with three Gigabit Network cards, which are connected to Internet, intranet and website servers respectively.The requirements are as follows: The gat ...

What is it? ss is the abbreviation of Socket Statistics. As the name implies, the ss command can be used to obtain socket statistics, which can display content similar to netstat. But the advantage of ss is that it can display more detailed info ...

grep and sed support basic regular expressions in common file processing tools on Linux systems. grep - Regularly expresses commands to filter file contents. Options: -i: case insensitive when searching; -v: reverse search, showing all columns that do not meet the search criteria; -n: Display the line number of the output; -A: You can append ...

Profile Details Most of the configuration files are comment line default configuration items.The file follows the INI format and is divided into several categories of configurations, which are described below.Before that, take a look at where the profile is stored and how to get the profile template from the official website. Location of profi ...

Paramiko is a Python SSHv2 protocol that provides client and server functionality. Although it uses a Python C to extend low-level encryption paramiko itself is a pure Python interface around the concept of SSH networking. Install Paramiko pip3 ins ...

Preface Recently, I rebuilt the system and used win10. Before that, the development environment and configuration on the computer were cleared. Because of working reasons, I need to use Gitee (code cloud) and Github frequently. I used to configure one, but I don't know how to configure two at the same time, so I have this article. Since Gitee a ...