# HW06 LNMP安裝

## 安裝Nginx
- 首先，先安裝Nginx

    sudo apt install nginx

- 接著，查看nginx運行狀態

    systemctl status nginx

- 正在跑，太棒了
- 確認一下

## 安裝PHP
- 先安裝PHP的PPA

    sudo add-apt-repository ppa:ondrej/php

- 安裝PHP的直譯器
- 先看版本: 最新的是8.4
- 安裝PHP

        sudo apt install php8.4

- 安裝PHP-fpm: FastCGI Process Manager

    sudo apt install php8.4-fpm


## 設定PHP與nginx之間的參數
- 先用文字編輯器更改`sudo nano /etc/nginx/sites-available/default` (要有root權限才能改)
- 改成這樣

    ##
    # You should look at the following URL's in order to grasp a solid understanding
    # of Nginx configuration files in order to fully unleash the power of Nginx.
    # https://www.nginx.com/resources/wiki/start/
    # https://www.nginx.com/resources/wiki/start/topics/tutorials/config_pitfalls/
    # https://wiki.debian.org/Nginx/DirectoryStructure
    #
    # In most cases, administrators will remove this file from sites-enabled/ and
    # leave it as reference inside of sites-available where it will continue to be
    # updated by the nginx packaging team.
    #
    # This file will automatically load configuration files provided by other
    # applications, such as Drupal or Wordpress. These applications will be made
    # available underneath a path with that package name, such as /drupal8.
    #
    # Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
    ##

    # Default server configuration
    #
    server {
        listen 80 default_server;
        listen [::]:80 default_server;


        # SSL configuration
        #
        # listen 443 ssl default_server;
        # listen [::]:443 ssl default_server;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: https://bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: https://bugs.debian.org/765782
        #
        # Self signed certs generated by the ssl-cert package
        # Don't use them in a production server!
        #
        # include snippets/snakeoil.conf;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.php index.html index.htm index.nginx-debian.html;

        server_name _;

        location / {
            # First attempt to serve request as file, then
            # as directory, then fall back to displaying a 404.
            try_files $uri $uri/ =404;
        }

        # pass PHP scripts to FastCGI server
        #
        location ~ \.php$ {
            include snippets/fastcgi-php.conf;

            # With php-fpm (or other unix sockets):
            fastcgi_pass unix:/run/php/php8.4-fpm.sock;
            # With php-cgi (or other tcp sockets):
            # fastcgi_pass 127.0.0.1:9000;
        }

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        location ~ /\.ht {
            deny all;
        }
    }


    # Virtual Host configuration for example.com
    #
    # You can move that to a different file under sites-available/ and symlink that
    # to sites-enabled/ to enable it.
    #
    #server {
    #	listen 80;
    #	listen [::]:80;
    #
    #	server_name example.com;
    #
    #	root /var/www/example.com;
    #	index index.html;
    #
    #	location / {
    #		try_files $uri $uri/ =404;
    #	}
    #}

- 確定更改成功

    sudo nginx -t

- 測試PHP是否成功連結到Nginx
- 首先先寫`info.php`: 在`/var/www/html`

        <?php
            phpinfo();
        ?>

- 接著restart nginx

        sudo systemctl restart nginx

- 打開瀏覽器測試
- 看一下內容
- 首先是Server的設定
- 接著是伺服器狀態
## 安裝MariaDB
- 先安裝相關套件

    sudo apt install wget software-properties-common dirmngr ca-certificates apt-transport-https

- 接著安裝MariaDB

    sudo apt install mariadb-server mariadb-client

- 確定是不是可以正常使用

    mariadb --version
    systemctl status mariadb

- 不放心用nmap炸一次我的主機

    nmap -sT 127.0.0.1 -T5

- 可以看到DB是真的有安裝的
## 測試MariaDB與PHP
- 先去mysql改使用者
- 進mysql

        sudo mysql

- 輸入SQL命令

        ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';

- 接著因為我們沒有安裝php與mysql連接的函數庫，因此要去安裝

    sudo apt-get install php8.4-mysql

- 然後我的PHP就可以做連線測試了

    <?php
        ini_set("display_errors", 'on');
        $servername = "localhost";
        $username = "root";
        $password = "123456";


        $conn = mysqli_connect($servername, $username, $password);

        if (!$conn){
            die("<h1>"."connect error".mysqli_connect_error()."</h1>");
        }
        echo "<h1>connect successful</h1>";
    ?>

- 連上Server看看