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Monitoring terminal operation #!/bin/bash #Install zabbix+LNMP # lnmp(){ #Turn off firewall & core security features systemctl stop firewalld.service systemctl disable firewalld.service &> /dev/null setenforce 0 sed -i "7cSELINUX=disabled" /etc/sysconfig/selinux #yum install nginx wget http://nginx.org/packages/centos/7/noarch/RPM ...

Refer to Chapter 7 of algorithm diagram for details. The original book was written in python, and I wrote it again in PHP, which was slightly improved Test these three exercises in the book   I found another "difficult" question on the Internet   Upper Code: class ShortPath{ ...

An overview of Roles Roles can automatically load variable files, task s, handlers, and so on, depending on the hierarchy. Simply put, Roles is about including variables, files, tasks, modules, and processors in separate directories and easily. Roles is typically used in scenarios where services are built on hosts, but it can also be used in s ...

For a table, we can set its selection mode: select one row or consecutive rows at a time, or any consecutive rows. We can also set the selection model for its columns. Create table first JTable table=new JTable(); For row selection, you should callgetSelectionModel().setSelectionMode(model); function W ...

Inverse Document Frequency (IDF for short) If a certain word is less, but it appears many times in this article, it may reflect the characteristics of this article, which is the key words we need Word frequency (TF) = the number of times a word appears in an article / the number of times a word app ...

Following the last chapter 2018 swoole 6-asynchronous redis This presentation swoole process management module Create child process New process.php <?php $process = new swoole_process(function(swoole_process $pro) { echo 'swoole Create process' . PHP_EOL; }, false); // If set to true, the terminal will not display standard o ...

This article mainly introduces how to use nginx to configure tomcat and https ssl certificates.   Mode 1: directly modify the nginx.conf file under the conf file of nginx   You can directly copy the entire server node as follows, and change the certificate in the red box to your own. #user nobody; worker_processes 1; ...

Following the last chapter Swoole battle in 2018 1 - get to know swoole In a project, there are always scenarios that trigger behaviors that take a long time. For example, if the user updates the article and triggers the push message to all the fans of this user, if a user has 10000 fans and uses synchronized blocking method, it wi ...

The article concludes with the material information and installation instructions for this project Article Directory 1. Basic preparation 2. Install Mysql 3. Install PHP 4. Install Nginx 5. Nginx Integration php 6. Install PHP extensions END 1. Basic preparation System Environment CenterOs7. ...

1,cd (change directory) switch to the specified directory -Return to last directory .. Return to the upper directory Enter to return to home directory /Root directory 2,cp (copy) copy a file or directory -r -R Recursively copy the contents of this directory and its subdirectories -p Copy past with file properties -f Force copy without aski ...