nginx boleh diakses secara normal tanpa www, tetapi nama domain www tidak boleh diakses secara normal

Question

Sebaik sahaja anda mengakses nama domain www, anda akan dialihkan ke 域名访问提示

域名已经解析www了，下面是nginx.conf

user              nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log;
#error_log  /var/log/nginx/error.log  notice;
#error_log  /var/log/nginx/error.log  info;

pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       /etc/nginx/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"';    
    access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    #tcp_nopush     on;
    #keepalive_timeout  0;
    keepalive_timeout  65;
    #gzip  on;
    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*.conf;
}

sites-enabled

server {
    listen 80;
    server_name www.youzisq.com youzisq.com;

    location / {
        proxy_pass http://127.0.0.1:5050;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

Answer 1

Alasan paling mungkin untuk lompatan DNS yang dilakukan oleh pengendali ialah nama domain belum diselesaikan atau keputusan resolusi nama domain masih belum berkuat kuasa. Sila semak TTL resolusi nama domain, semak resolusi tempatan dalam talian dan cuba kosongkan cache DNS tempatan.