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Environmental Science: Virtual machine: VMware 12 Pro Linux: rhel-server-6.4-x86_64 MYSQL: 5.7.21 1. Download mysql In official website: http://dev.mysql.com/downloads/mysql/ , select the following version of mysql to download: 2. Unzip the installation package in / usr/local and rename it mysql [root@mys ...

The official sources on Ubuntu, such as PHP5.6.x in Ubuntu 14.04 and PHP7.0.x in Ubuntu 16.04, what should I do if I want to install PHP7.1 and PHP7.2 on Ubuntu 16.04? The answer is to install from a third-party source, ppa:ondrej/php It is a well-known PHP source (currently maintaining php5.6,php7.0,php7.1,php7.2). Use this source to install t ...

Zabbix monitoring platform installation and deployment For the deployment of Zabbix monitoring platform, at least four components need to be installed, namely, Zabbix? Server, Zabbix? Web, Databases, and Zabbix? Agent. The detailed steps for the installation and configuration of Zabbix monitoring platform are as follows: 1, System environment ...

Recent projects require the configuration of a four-node cluster of shared storage to enable the cluster to form a load balancing.   However, you know that PostgreSQL does not support the generation of multiple instances using the same data directory. When executing pg_ctl start, if an instance of the specified data directory is running, the ...

ActiveMQ installation Go to http://activemq.apache.org/ official website to download ActiveMQ Installation environment: 1. jdk required 2. Install the Linux system. The production environment is all Linux systems. Installation steps: Step 1: upload the ActiveMQ compressed package to the Linux system. Step 2: decompress. Step 3: start. Use the ...

Tags (space delimited): kubernetes series One: What is Helm 2: Helm deployment One: What is Helm Before using helm, deploying applications to kubernetes requires a cumbersome process of deployment, svc, and so on.Moreover, as many projects are microserviced, deployment and management of complex applications in containers becomes mor ...

Environmental description: Operating system: centos-7-x86_-minimal-1611 Virtual machine: VMware ® Workstation 12 Pro; 12.5.5 build-5234757 Server: node1 (User1), node2 (User2) Implementation content: The user User1 of node1 server can log into the User2 account of node2 through SSH without key; Configuration process: By default, us ...

In php cli mode, you can use $argc and $argv to read all parameters and numbers, such as: ghostwu@ghostwu:~/php/php1/1$ cat go1 #!/usr/bin/php <?php echo 'Number of parameters:' . $argc . PHP_EOL; echo 'Printing parameters:' . PHP_EOL; print_r( $argv ) . PHP_EOL; Add executable permissions to the file: ghostwu@gho ...

Extracting a file under Dot Net is very simple: ZipFile.ExtractToDirectory("test.zip", "./test"); However, when a program runs the Dot Net program on Mac to extract a zip file, the directory structure is gone, as shown in the following figure: image.png After some research, it is found that the reason is that the zip is gen ...

Experimental environment Operating system type rhel6.5 Virtual machine of KVM type It is important to note that the root partition must be mounted using an extensible LVM volume group Use the command df -h to view [root@server6 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper ...