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This document gives a method to recover the files deleted by mistake in ext4 file system. The software to be used is extundelete, which has a high recovery success rate for ext4 file system and is worth having! [root@localhost ~]# rm -Rf /   #Execution failed! rm: stay"/" Recursive operation is very dangerous rm: Use --no-preserve-root Option ...

Preface In the previous article, I have described some contents of docker's entry level. This article begins to explain other contents of docker in depth. First, it will talk about the principle and practical operation of the discovery and automatic update part of docker container service. Talk about the concept and advantages (just look at t ...

1, Binary package installation We can go to Prometheus binary installation package Download page Download the corresponding installation package according to your own operating system. Let's take Amazon Linux 2 as a demonstration. We will download the latest version v2.17.1 according to the current time. 1.1 download Prometheus Ser ...

kubeadm production environment deployment steps 1, Environmental description: 1，centos7 2. ntp clock consistency is required in cluster environment 3，getenforce 0 4，disable firewall 2, Host condition: | k8s-master | k8s-node1 | k8s-node1 | | -------- | -------- | -------- | | 172.16.0.160     | 172.16.0.161    | 172.16.0.162    | 172.16. ...

python3 environment construction under Linux What are the ways to install Linux software? The manual installation of rpm package rejects this mode, and the dependency needs to be resolved manually yum automatic installation is very easy to handle dependency automatically Source code compilation and installation, more customizable functio ...

 This past few days I have queried the syntax and some class libraries of Python3, and I happen to find some hidden backdoor 0.0 in the company's oa address book So I resolutely picked it up as a practice item First, use the developer tool F12 to crawl to the URL address of the MSS action on the OA website        url  = 'http://mss.xxxx.co ...

docker compose: a tool for docker automatic arrangement Preface In the last two articles, I played with Dockerfile again, mainly building various service images based on Dockerfile. This paper will introduce and demonstrate the concept and use of docker compose, which is an automatic choreographer tool of docker. What is docker compose? Before ...

Voice communication scheme System level solutions and self built protocols windows platform, linux platform, embedded linux platform, mcu platform 1. Voice solution of wired communication developed on Embedded Linux This scheme is developed on Embedded Linux. The audio scheme is based on ALSA. The voice communication is related to user ...

Looking at Chapter 21, I introduced the magic tool getopt to parse the command line, and learned how to handle the general command line under linux. The command line can be divided into parameters and options. The ones without - or - prefix are parameters. For a command, the number is fixed, and the order of multiple parameters is fixed (otherw ...

1, Source code description Freecplus is a C/C + + open source framework under Linux system. Please go to the C language technology network (www.freecplus.net) to download the source code. This paper introduces the method of log file operation in freecplus framework. The declaration file for functions and classes is freecplus / 65124; freecplus ...