无法访问此站点 ERR_CONNECTION_REFUSED - nginx 未侦听端口 80

无法访问此站点 ERR_CONNECTION_REFUSED - nginx 未侦听端口 80

我正在运行一个 LEMP 堆栈,该堆栈曾为来自本地和远程 IP 地址的请求提供服务,但现在它根本不为请求提供服务。当它停止服务远程请求时,我试图在其上设置虚拟主机。我尝试修复此问题,但现在它也不满足本地请求。每当我尝试从 LAN 或 Internet 访问该网站时,我都会收到一条错误消息(在 Chrome 中):“无法访问此网站... ERR_CONNECTION_REFUSED”

我可以 ping 通服务器的内部 IP 地址、外部 IP 地址和域名,但无法加载网站。我还通过 SSH 进行处理,而不是直接在机器上进行。这是一个配置问题,而不是网络问题。

这是我网站的配置文件:/etc/nginx/sites-available/anneliesephotos.com

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    root /usr/share/nginx/ftp/lauren/anneliesephotos;

    index index.php index.html index.htm index.nginx-debian.html;

    server_name anneliesephotos.com;
    # www.anneliesephotos.com;
    #server_name 99.104.137.87;

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

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;

        # With php-fpm (or other unix sockets):
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        # With php-cgi (or other tcp sockets):
        #fastcgi_pass 127.0.0.1:9000;
    }

    location ~ /\.ht {
            deny all;
    }
}

这是我的 /etc/nginx/sites-available/default 文件的内容:

server {
    listen 80;
    listen [::]:80;
    root /var/www/html;

    # Add index.php to the list if you are using PHP
    index 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;
            try_files $uri $uri/ /index.php$is_args$args;
    }
    location = /favicon.ico { log_not_found off; access_log off; }
    location = /robots.txt { log_not_found off; access_log off; allow all; }
    location ~* \.(css|gif|ico|jpeg|jpg|js|png)$ {
            expires max;
            log_not_found off;
    }
}

当我查看 Nano 中的默认文件时,行“expire max;”、“log_not_found off;”以及它们后面下一行的右花括号左侧有实心红色块,几乎就像一个错误。

/etc/nginx/nginx.conf 文件如下所示:

user www-data;
worker_processes 2;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections 768;
    multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    #

    server_tokens off;

    #server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie_6";
    gzip_min_length 1100;

    gzip_vary on;
    gzip_proxied any;
    # gzip_comp_level 6;
    gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml
    application/x-font-ttf font/opentype application/vnd.ms-fontobject;

    ##
    # Virtual Host Configs
    ##

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

/etc/nginx/sites-enabled 具有指向 /etc/nginx/sites-available/anneliesephotos 文件夹的符号链接

lrwxrwxrwx 1 root root   42 Nov 24 02:44 anneliesephotos -> /etc/nginx/sites-available/anneliesephotos

当我运行时netstat -tlpn,我发现由于某种原因端口 80 没有监听,尽管网站的配置文件说这样做:

Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.53:53           0.0.0.0:*               LISTEN      702/systemd-resolve
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1211/sshd
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      1326/mysqld
tcp6       0      0 :::21                   :::*                    LISTEN      1005/vsftpd
tcp6       0      0 :::22                   :::*                    LISTEN      1211/sshd

当我跑步时nginx -t,我得到这个:

nginx: the configuration file /etc/nginx/nginx.conf syntax is ok 
nginx: configuration file /etc/nginx/nginx.conf test is successful

当我运行时service nginx status,我得到以下行以及其他行(其中都不包括“关闭”或“禁用”):

Active: active (running) since Sat 2018-11-24 10:47:48 UTC; 5h 38min ago

所以我知道 nginx 正在运行,配置文件的语法是正确的,特定网站的配置文件说监听端口 80,并且配置文件在 /sites-enabled 中符号链接

答案1

我最终卸载、重新安装并重新配置 nginx。无需重新配置太多内容,只需在anneliesephotos 配置文件中添加几行即可。但这并没有解决问题。

我发现我什至无法从网络外部 ping 该网站。我检查了我的路由器,它说它允许所有流量到达网络服务器,但显然不是。我重新配置了路由器以仅允许我需要的协议。然后我重新启动路由器,它开始让流量通过。

我完成了重新配置 nginx 来为网站提供服务。我也不得不改变

try_files $uri $uri/ =404;

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

现在它又可以工作了。

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