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Execute the command sudo useradd --help The error is reported as follows:fuyun is not in the sudoers file. This incident will be reported. Reason: the user does not have root permission temporarily Solution: modify sudoers file Switch to the root user, su -, run the visudo command, which is used ...

First, initial knowledge 1.1 use Python to implement a reverse Shell that can manage multiple broilers. Why is it called a reverse Shell? The reverse is that broiler actively connects to our Server as Client to realize the management of multiple remote hosts! Learning skills: Understand the TCP protocolUnderstand C/S structure program design ...

Starting jar with shell general script under Linux (microservice)   vim app_jar.sh #!/bin/bash #source /etc/profile # Auth: Liucx # Please change these parameters according to your real env. # set Java Home: Remember that dolphin only supports JDK8! JAVA_HOME=/usr/java/jdk1.8.0_162 # application directory cd `dirname $0` APP_HO ...

I. Introduction A later management center built with React router DOM, Redux, Redux actions, Redux saga, reselect + material UI. II. Appendix+1. [online experience] (https://simpleroom.github.io): Account: < code > admin < / code > password: < code > 123456 < / code >+2. [source address: https://github.com/SimpleRoom/w ...

Links: https://ac.nowcoder.com/acm/contest/949/HSource: niuke.com Title Description There are n shells in Xiaoyang's hands, each of which has a color, and the color of the first shell is colicoli coli. Now Xiaoyang has three operations: 1 l r x: add xx to the color value of all shells in the [l,r][l,r] range. 2 l r: ask the maximum va ...

Article directory U-boot Makefile national construction process Host build environment configuration process Define host system architecture Define host operating system type Define SHELL script interpreter Set compile output directory Configuration process related to target machine mkconfig scrip ...

regular expression What is regular expression? Regular expression is a logical formula for string operation, which is to form a "regular string" with some specific characters defined in advance and the combination of these specific characters. This "regular string" is used to expr ...

Article directory 1 Child Process module 1.1 INTRODUCTION 1.2 method 1.2.1 exec() 1.2.2 execFile() 1.2.3 spawn() 1.2.4 fork() 1.2.5 send() 1 Child Process module 1.1 INTRODUCTION The child process module is used to create a new child process. The running results of the subprocesses are sto ...

ansible, playbook, huaweiyun, ceph First, purchase the virtual machine needed to build the ceph cluster on Huawei cloud:       Then purchase the storage disk required by ceph     Mount the purchased disk to the virtual machine used to build ceph Installing ansible on the springboard machine Check the ansible vers ...

I. installation dependency #Windows platform 1,pip3 install wheel 3,pip3 install lxml 4,pip3 install pyopenssl 5,pip3 install pywin32 #If not, go to the official website https://sourceforge.net/projects/pywin32/files/pywin32/ 6,pip3 install twisted #If you can't go to the official website: http://www.lfd.uci.edu/~gohlke/pyt ...