Linux speed start
This article mainly records the entry-level basic operation methods in Linux, and arranges the basic Linux operation statements File view pwd lists the path of the current directory and views the current directory [root@localhost ~]# pwd /root ~Represents the user's home directory ls lists allUTF-8...
Posted by donturo on Mon, 20 Sep 2021 10:31:13 +0530
Blue whale CMDB deployment notes
System introduction Tencent blue whale smart cloud system is composed of platform level products and general SaaS services. The platform includes control platform, configuration platform, operation platform, data platform, container management platform, mining platform, PaaS platform, mobile pUTF-8...
Posted by shawngibson on Mon, 20 Sep 2021 10:44:46 +0530
Command injection (DVWA+buuctf pingpingping)
Write in front The command injection vulnerability is very similar to SQL injection and XSS vulnerabilities. It is also caused by developers' poor consideration. When using web applications to execute system commands, the characters entered by users are not filtered or the filtering is not striUTF-8...
Posted by A JM on Mon, 20 Sep 2021 18:35:25 +0530
Deploying redis cluster production cluster based on docker
Before we begin, let's ask a few questions: What is redis cluster? keyHashSlot The function is used to calculate which slot a given key should be allocated to. The node allocation and node data storage are realized by using the fragment modulus algorithm. /* --------------cluster.c-------------UTF-8...
Posted by hesyar on Mon, 20 Sep 2021 21:14:22 +0530
ELK+filebeat+redis to monitor nginx logs
1. Environmental preparation Background Introduction: Operations and maintenance personnel need precise control of the system and business logs to facilitate analysis of the system and business status. Logs are distributed on different servers. Traditional methods of logging on to each server UTF-8...
Posted by netxfly on Tue, 21 Sep 2021 00:06:36 +0530
Linux interprocess communication
signal For Linux, signals are soft interrupts, and many important programs need to process signals. Semaphores provide Linux with a way to handle asynchronous events. For example, if the end user inputs ctrl+c to the terminal program, it will stop a program through the signal mechanism. In factUTF-8...
Posted by ali_mac1 on Tue, 21 Sep 2021 01:21:05 +0530
Centos8 server configures the pits stepped by internal and external networks
Using server DEll R440 1, Server network troubleshooting: 1. One end of the network cable is directly connected to the school router, and the other end is connected to its own notebook 2. Being able to access the Internet means that there is no problem with the router port and network cable 2.1UTF-8...
Posted by Mattyspatty on Tue, 21 Sep 2021 02:50:22 +0530
Detailed explanation of NFS principle
1, NFS introduction 1) What is NFS Its main function is to share files and directories between different machine systems through the network. Server for NFS allows NFS clients to mount the shared directory of the remote NFS server to the local NFS client. In the view of the local NFS client macUTF-8...
Posted by Aikon on Tue, 21 Sep 2021 06:08:29 +0530
curl usage guide
curl usage guide Transferred from: http://www.ruanyifeng.com/blog/2019/09/curl-reference.html Author: Ruan Yifeng Date: September 5, 2019 brief introduction curl is a common command-line tool for requesting Web servers. Its name means the URL tool of the client. Its function is very powerful, wUTF-8...
Posted by superpimp on Tue, 21 Sep 2021 12:44:07 +0530
A linux i2c driver
Catalogue of series articles 1. A linux i2c driver 2. linux i2c driver II catalogue Catalogue of series articles Article catalog preface 1, Brief description of i2c protocol 2, i2c driver framework under linux 1. First, master how to use 2. Understand the principle 3, Instance 1. Device tree 2UTF-8...
Posted by DoctorT on Wed, 22 Sep 2021 03:06:43 +0530