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Ubuntu Install UFW firewall sudo apt-get install ufw For general users, only the following settings are required: sudo apt-get install ufw sudo ufw enable sudo ufw default deny The above three commands are safe enough. If you need to open some services, you can use sudo ufw allow. Enable sudo ufw enable sudo ufw default deny #Aft ...

MCU platform libjpeg9 porting instructions With the performance of MCU platform becoming more and more powerful, it is possible to use jpeg soft decoding on MCU. This paper will explain the migration of libjpeg. libjpeg is a widely used JPEG image compression / decompression open source library, which ...

Environment: Ubuntu 18.04 1. Acquire license certification Get the document from darwin source, use "Alt+Ctrl+T" to open the command window, enter $ssh-keygen All the way back, back, back You can see that the generated id_rsa file, at / home/wangcen/.ssh/id_rsa location (different computer ...

Article catalog preface 1, Hardware connection 2, Raspberry pie enable I2C function 1. Enable I2C Kernel Module 2. Install I2C tools 3, Local temperature display 1. Installation luma.oled 's bag 2. Light up the oled screen 3. Local temperature and humidity detection 4, ONENET cloud platform displ ...

selenium initialization Note that if Chrome is not installed in the default path, you need to use the option.binary_location sets the path of chrome. If the chrome driver is not in the same path as the current code, you also need to set the path of the chrome driver. option = webdriver.ChromeOptions() ...

Firewall D is the front-end controller of iptables, which is used to implement persistent network traffic rules. It provides command line and graphical interfaces, which are available in the repositories of most Linux distributions. There are two main differences between using firewall D and controlling iptables directly: Firewall D uses zone ...

docker start stop sudo systemctl start docker.service sudo systemctl stop docker.service sudo systemctl restart docker.service sudo systemctl status docker.service sudo systemctl enable docker sudo docker ps -a ## <-- List existing images ## sudo docker stop 17dd4ab4cda2 ##<-- 17dd4ab4cda2 by container id ## sudo docker rm 17dd4ab4cda ...

Experimental background: since the installation of k8s requires the use of an agent to use the official source, it is necessary to configure an agent in CentOS7 for scientific Internet access Install the Shadowsocks client Install epel source and pip package management sudo yum -y install epel-release sudo yum - ...

Preceding text Assume you have basic knowledge of Azure and SQL Server HA Assume you have basic knowledge of Azure Cli The goal is to create an availability group with three replicas on Azure Linux VM and implement listener and Fencing configuration Environmental Science SQL Server 2019 Developer on Linux Azure VM Fencing agent Azure Cli imp ...

background The development of microservices based on Ceph RadosGW requires that callers can create users and obtain user information through rest api. Realization Ceph's RadosGW has this function itself. These functions of creating users, obtaining user information, obtaining usage, etc. are called admin operation. We can access and perform adm ...