sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt update
安装PHP7.2和通用扩展:
sudo apt install php7.2 php7.2-fpm php7.2-mysql php-common php7.2-cli php7.2-common php7.2-json php7.2-opcache php7.2-readline php7.2-mbstring php7.2-xml php7.2-gd php7.2-curl
启动PHP7.2-FPM:
sudo systemctl start php7.2-fpm
系统自启动:
sudo systemctl enable php7.2-fpm
检查其状态:
systemctl status php7.2-fpm

vi /etc/nginx/conf.d/default.conf
server {
listen 80;
listen [::]:80;
server_name att.cool;
root /usr/share/nginx/html/;
index index.php index.html index.htm index.nginx-debian.html;

location / {

try_files $uri $uri/ /index.php;

}

error_page 404 /404.html;
error_page 500 502 503 504 /50x.html;

location = /50x.html {

root /usr/share/nginx/html;

}

location ~ .php$ {

fastcgi_pass unix:/run/php/php7.2-fpm.sock;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
include snippets/fastcgi-php.conf;

}

location ~ /.ht {

deny all;

}
}

cp /etc/apt/sources.list /etc/apt/sources.list.bak

vi /etc/apt/sources.list

apt-get update
apt-get upgrade

中科大源

deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

阿里源

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

163源

deb http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ bionic-backports main restricted universe multiverse

清华源

deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

安装Nginx
apt-get install nginx

systemctl start nginx　　　　　　　　　------设置nginx服务开机自启动
systemctl start nginx　　　　　　      ------开启nginx服务
systemctl status nginx.service　　　　 --------查看nginx状态

nginx -v

chown www-data:www-data /usr/share/nginx/html/ -R

</div>
在安装nginx时候，默认创建用户www-data用户
<div class="cnblogs_code">

cat /etc/passwd | grep www-data
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin

</div>
安装mariadb数据库
<div class="cnblogs_code">

apt-get install mariadb-server mariadb-client

mysql_secure_installation

apt-get install php7.0 php7.0-fpm php7.0-mysql php-common php7.0-cli php7.0-common php7.0-json

PHP插件服务的启动及状态的查看

systemctl enable php7.0-fpm
systemctl start php7.0-fpm
systemctl status php7.0-fpm

vi /etc/nginx/sites-available/default

rm /etc/nginx/sites-enabled/default

vi /etc/nginx/conf.d/default.conf   -------将以下文本粘贴到文件中。 将192.168.1.108替换为您的实际服务器IP地址。

server {
  listen 80;
  listen [::]:80;
  server_name 192.168.1.108;　　　　　　----ip地址替换为自己的ip地址
  root /usr/share/nginx/html/;
  index index.php index.html index.htm index.nginx-debian.html;

  location / {
    try_files $uri $uri/ /index.php;
  }

  error_page 404 /404.html;
  error_page 500 502 503 504 /50x.html;

  location = /50x.html {
    root /usr/share/nginx/html;
  }

  location ~ .php$ {
    fastcgi_pass unix:/run/php/php7.0-fpm.sock;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    include fastcgi_params;
    include snippets/fastcgi-php.conf;
  }

  location ~ /.ht {
    deny all;
  }
}

检查内核版本：
uname -a

1.确定系统是32位还是64位的：
getconf LONG_BIT

2.wget http://kernel.ubuntu.com/~kernel-ppa/mainline/ 下载最新的程序包
例如下载64位的4.10.2的内核：
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10.2/linux-image-4.10.2-041002-generic_4.10.2-041002.201703120131_amd64.deb

3.切换文件下载目录，执行命令升级：
dpkg -i linux-image-4.10.2-041002-generic_4.10.2-041002.201703120131_amd64.deb

4.更新grub引导：
update-grub

5.reboot

1. CentOS6

临时关闭

service iptables stop

禁止开机启动

chkconfig iptables off

1. CentOS7默认使用firewalld

临时关闭

systemctl stop firewalld

禁止开机启动

systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.

1. iptables-service

安装iptables

yum install -y iptables-services

关闭防火墙

service iptables stop

检查防火墙状态

service iptables status