一·软件操作

systemctl status xxxx
systemctl start xxxx
systemctl restart xxxx
systemctl stop xxxx
sudo service xxxx start
sudo service xxxx restart
sudo service xxxx stop
xxxx：nginx    php{version}-fpm    mysql

注意(一):

host：域名  /  localhost
username：用户名
password：密码
port：端口，默认3306
DatabaseName：数据库名称

查看cpu

cat /proc/cpuinfo

SSL申请

lsof -i:端口

安装 MySQL 8.0 所需的软件包

sudo apt install dirmngr software-properties-common apt-transport-https curl lsb-release ca-certificates -y