Pomelo Lee workspace

  sudo yum install epel-release
 
  sudo rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

  ## Install PHP 7.4 
  yum --enablerepo=remi-php74 install php
 
  ## Install PHP 7.3 
  yum --enablerepo=remi-php73 install php
 
  ## Install PHP 7.2 
  yum --enablerepo=remi-php72 install php
 
  ## Install PHP 7.1 
  yum --enablerepo=remi-php71 install php

	### For PHP 7.4
yum --enablerepo=remi-php74 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt
 
### For PHP 7.3
yum --enablerepo=remi-php73 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt
 
### For PHP 7.2
yum --enablerepo=remi-php72 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt
 
### For PHP 7.1
yum --enablerepo=remi-php71 install php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt

  ## For PHP 7.4 
  yum --enablerepo=remi-php74 install php-fpm mysqlnd
 
  ## For PHP 7.3 
  yum --enablerepo=remi-php73 install php-fpm mysqlnd
 
  ## For PHP 7.2 
  yum --enablerepo=remi-php72 install php-fpm mysqlnd
 
  ## For PHP 7.1 
  yum --enablerepo=remi-php71 install php-fpm mysqlnd

	sudo apt-get install deepin-appstore
	##注意移除data数据即可
	sudo apt-get remove deepin-appstore-data
	sudo apt-get install dde
	sudo reboot

 wget https://dl.google.com/linux/direct/google-chrome-stable_current_x86_64.rpm

 yum -y install ./google-chrome-stable_current_x86_64.rpm

  [root@localhost soft]# google-chrome --version
   Google Chrome 87.0.4280.88

   wget https://npm.taobao.org/mirrors/chromedriver/87.0.4280.88/chromedriver_linux64.zip
 
   #解压chromedriver_linux64.zip
 
   unzip chromedriver_linux64.zip
   mv chromedriver /usr/bin/

    /usr/share/fonts/simsun.ttc
   ##执行命令
   fc-cache -fv

 $ curl -sSL https://get.daocloud.io/docker | sh
 $ sudo systemctl start docker
 
 $ docker run -d -p 4444:4444 -v /dev/shm:/dev/shm selenium/standalone-chrome:4.0.0-beta-1-prerelease-20201208
 
 //如果遭遇iptables nat 等失败 可以重新启动下docker再运行selenium chrome解决
 $ service iptables stop
 $ service iptables start
 $ sudo systemctl restart docker
 $ docker run -d -p 4444:4444 -v /dev/shm:/dev/shm selenium/standalone-chrome:4.0.0-beta-1-prerelease-20201208
 
 //仅仅是备用，无需安装
 $ docker pull openjdk:11

<dependency>
	<groupId>org.seleniumhq.selenium</groupId>
	<artifactId>selenium-java</artifactId>
</dependency>

curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun
#或者：国内源速度快点
curl -sSL https://get.daocloud.io/docker | sh
##启动docker
sudo systemctl start docker

 
docker run -d -p 4444:4444 -v /dev/shm:/dev/shm selenium/standalone-chrome:4.0.0-alpha-7-prerelease-20200907

<!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-java -->
<dependency>
    <groupid>org.seleniumhq.selenium</groupid>
    <artifactid>selenium-java</artifactid>
    <version>4.0.0-alpha-6</version>
</dependency>
<dependency>
     <groupid>com.google.guava</groupid>
     <artifactid>guava</artifactid>
</dependency>

windows -> preferences -> java -> code style -> code template -> Comments ->Types
 
/**
 * @author pomelo.lee
 * @date ${currentDate:date('yyyy-MM-dd HH:mm:ss')}
 */

 -Duser.language=en_US

vi /etc/sysctl.conf
##生效
/sbin/sysctl -p
 
##查看keepalive的相关配置
sysctl -a | grep keepalive
 
##查看tcp连接的相关状态指令
netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'
 
##若没有netstat指令安装
yum install net-tools