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welcome 1, Install Ubuntu system Download Ubuntu system files Ubuntu's official website only matches versions 21 and 20, so I found Ubuntu 18 matching raspberry pie on the Internet 04.5 server version, click the link to download directly. Ubuntu Server 18.04.5 for Raspberry Pi 4 64-bit : http://cdimage.ubuntu.com/releases/bionic/release/ ...

1, Hadoop cluster construction 1. Installing virtual machines 1. Installing vmtools hadoop@ubuntu:sudo apt-get install open-vm-tools-desktop -y 2. Install vim editor hadoop@ubuntu:sudo apt install vim 2. Install jdk 1. Unzip the installation package hadoop@ubuntu:~$ sudo tar -zxvf jdk-8u171-linux-x64.tar.gz -C /usr/local 2. Modify e ...

reference material All references are from the boost official website https://www.boost.org/ Introduction to boost library Too lazy to write Installation of boost library ubuntu based on linux Official guide https://www.boost.org/doc/libs/1_78_0/more/getting_started/unix-variants.html The writing is vague Download and unzip https:// ...

explain netstat command is a very useful tool for monitoring TCP/IP network. It can display routing table, actual network connection and status information of each network interface device, as well as statistical data related to IP, TCP, UDP and ICMP protocols. It is generally used to check the network connection of each port of the machine an ...

Dockerfile Usage Summary Dockerfile is a text file used to build an image, which contains instructions and instructions for building an image.Each layer instruction in the dockerfield file describes how to build this layer on the basis of the previous layer. Operating environment Alibaba cloud ubuntu 20.04 Building a simple instance of a mi ...

Environmental preparation numberhost nametypeuserIP1masterMaster noderoot192.168.231.2472slave1Slave noderoot192.168.231.2483slave2Slave noderoot192.168.231.249 Environment construction 1, Basic configuration 1. Install VMware tools Copy it to the desktop Note: Press' Enter 'when prompted, and enter ye ...

Write before: It is recommended that ubuntu be installed in dual system mode, and virtual machines are not recommended. Strange errors will occur, resulting in failure to configure the environment. This tutorial uses Ubuntu 18 04. For dual system installation, please search the tutorial installation by yourself. My graduation project is about ...

1. Build Ftp server on Ubuntu1.1 install vsftpd serversudo apt-get install vsftpd1.2 configure vsftpd Conf fileProfile:sudo vi /etc/vsftpd.conf# Example config file /etc/vsftpd.conf # # The default compiled in settings are fairly paranoid. This sample file # loosens things up a bit, to make the ftp daemon more usable. # Please see vsftpd.conf.5 ...

1, c language program memory allocation stack area It is automatically allocated and released by the compiler to store the parameter values of functions and the values of local variables. Its operation is similar to the stack in the data structure.heap Generally, it is allocated and released by the programmer. If the programmer does not re ...

Equipment to be prepared:   Raspberry pie 4B (here I choose the 8G memory version) Keyboard and mouse (there must be a keyboard, and the mouse can be used after Ubuntu Mate is installed) Monitor (HDMI screen is recommended here, I use https://www.waveshare.net/wiki/7inch_HDMI_LCD_(C) (screen below) 16G/32G SD card (32G is recommended because ...