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Article catalog preface Why use key authentication Secret key authentication process Secret key generation and use Interactive creation and distribution of secret keys a) Generate secret key b) Distribute secret keys c) Login testNon interactive creation key summary preface We discussed the basic introduction and configuration files of ssh ...

Tools find, locate, grep, whereis/which, type. find File Finder find supports a variety of parameters. Here are some of the commonly used parameters. For more information, see: find command Common Conditions -type Type parameters f Normal File l Symbolic Connection d Catalog c Character Device b Block Device s socket p Fifo -inam ...

1, Introduction to GitLab Runner GitLab Runner is an open source project that runs your job and sends the results back to GitLab. It works with GitLab CI, an open source continuous integration service that comes with GitLab to coordinate jobs. GitLab Runner is written in Go and can be run as a single binary file without language specific requ ...

Building a virtual Web host Virtual iweb host refers to running multiple web sites in the same server, in which each site does not actually occupy the whole server independently, so it is called "virtual" web host. Through the virtual web host service, we can make full use of the hardware resources of the server, so as to greatly ...

Five chains and four tables Concept of chain After iptables is enabled, the data message will pass through five checkpoints from entering the server to exiting, namely pre routing, input, output, forward and post routing There are multiple rules in each level. Data packets must match these rules one by one in order. These rules are connect ...

Linux File Management II 1, View file contents 1. cat command Function: output the contents of files in positive order Basic syntax: # cat file name Case: viewing the / tmp/passwd file # cat /tmp/passwd 2. head command Function: view the first n lines of a file. If n is not specified, the first 10 lines will be displayed by default ...

Basic information Hardware configuration: Raspberry pie 4B 4G SDCart burn in system: Raspberry Pi OS Lite 2021-10-30 System creation and connection Mirror first Raspberry Pi OS Lite 5.10 adopt Win32 Disk Imager Burn it into the SD card. There are many ways for the computer to communicate with raspberry pie. It is recommended that th ...

Author: Daoge, a 10 + year embedded development veteran, focusing on: C/C + +, embedded and Linux. Pay attention to the official account below, reply to books, get classic books in Linux and embedded field. Reply to [PDF] to obtain all original articles (PDF format). catalogue Other people's experience, our ladder! Hello, I'm brother Dao. ...

Author: Daoge, a 10 + year embedded development veteran, focusing on: C/C + +, embedded and Linux. Pay attention to the official account below, reply to books, get classic books in Linux and embedded field. Reply to [PDF] to obtain all original articles (PDF format). catalogue Other people's experience, our ladder! Hello, I'm brother Dao. ...

01. Get to know ZooKeeper ZooKeeper is a sub project under the Apache Hadoop project. It is a tree directory service. ZooKeeper is translated as the zoo keeper, who is used to manage Hadoop (elephant) and hive (bee). ZooKeeper is a distributed, open source coordination service for distributed applications. The main functions provided by Zo ...