私はWebサーバーとしてnginxを選択し、次のチュートリアルに従いました。https://github.com/groovemonkey/hands_on_linux-self_hosted_wordpress_for_linux_beginners

ただし、Webサーバーに接続できません。

これにより、$ sudo nginx次のような応答が得られます。

nginx: [warn] duplicate MIME type "text/html" in /etc/nginx/nginx.conf:34
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()

$ sudo netstat -plten | grep 80次の結果を提供します。

tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      0          70851       9943/nginx -g daemo
tcp6       0      0 :::80                   :::*                    LISTEN      0          70850       9943/nginx -g daemo

これは私のnginx.confです。

user  www-data;
worker_processes  auto;

pid /run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
    error_log  /var/log/nginx_error.log error;
    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    # SSL
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # no sslv3 (poodle etc.)
    ssl_prefer_server_ciphers on;

    # Gzip Settings
    gzip on;
    gzip_disable "msie6";
    gzip_vary on;
    gzip_min_length 512;
    gzip_types text/plain text/html application/x-javascript text/javascript application/javascript text/xml text/css application/font-sfnt;

    fastcgi_cache_path /usr/share/nginx/cache/fcgi levels=1:2 keys_zone=microcache:10m max_size=1024m inactive=1h;

    include /etc/nginx/conf.d/*.conf;
    #include /etc/nginx/sites-enabled/*;
}

これは私のsite.confです（/etc/nginx/conf.d/にあります）。

server {

    listen [::]:80;

    server_name  _;

    client_max_body_size 20m;

    index index.php index.html index.htm;
    root   /home/tutorialinux/public_html;

    location / {
        try_files $uri $uri/ /index.php?q=$uri&$args;
    }

    # pass the PHP scripts to FastCGI server
    location ~ \.php$ {
            # Basic
            try_files $uri =404;
            fastcgi_index index.php;

            # Create a no cache flag
            set $no_cache "";

            # Don't ever cache POSTs
            if ($request_method = POST) {
              set $no_cache 1;
            }

            # Admin stuff should not be cached
            if ($request_uri ~* "/(wp-admin/|wp-login.php)") {
              set $no_cache 1;
            }

            # WooCommerce stuff should not be cached
            if ($request_uri ~* "/store.*|/cart.*|/my-account.*|/checkout.*|/addons.*") {
              set $no_cache 1;
            }

            # If we are the admin, make sure nothing
            # gets cached, so no weird stuff will happen
            if ($http_cookie ~* "wordpress_logged_in_") {
              set $no_cache 1;
            }

            # Cache and cache bypass handling
            fastcgi_no_cache $no_cache;
            fastcgi_cache_bypass $no_cache;
            fastcgi_cache microcache;
            fastcgi_cache_key $scheme$request_method$server_name$request_uri$args;
            fastcgi_cache_valid 200 60m;
            fastcgi_cache_valid 404 10m;
            fastcgi_cache_use_stale updating;


            # General FastCGI handling
            fastcgi_pass unix:/var/run/php/tutorialinux.sock;
            fastcgi_pass_header Set-Cookie;
            fastcgi_pass_header Cookie;
            fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_param SCRIPT_FILENAME $request_filename;
            fastcgi_intercept_errors on;
            include fastcgi_params;         
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico|woff|ttf|svg|otf)$ {
            expires 30d;
            add_header Pragma public;
            add_header Cache-Control "public";
            access_log off;
    }

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

server {
    listen       80;
    server_name  snapecraft.ddns.net;
    rewrite ^/(.*)$ http://www.snapecraft.ddns.net/$1 permanent;
}

システムはLinux Mint 18.3 Sylviaです。

編集1：

nginxはポートをバインドできるようになりましたが（default.confを置き換えることを忘れました）、まだ接続拒否メッセージが表示されます。これはPHP / FastCGIに関連していますか？