我在 Cloudflare 的 Pages 上部署了 github 的项目，默认域名是.dev 的，于是我绑定了一个在 cloudflare 上托管的域名，假设是 abc.com ，项目解析的是 pj.abc.com ，我访问 pj.abc.com 的时候是 reset ，因为长城的原因，我只能使用 VPN ，但这不是一个好办法，于是我找到了一台能够翻墙的 Linux 服务器，使用 nginx 对这个域名进行反向代理，但是似乎访问时会报 502 ，这个是啥问题引起的？ server { listen 6659; server_name pj.123.com; access_log /var/nginx/logs/http_proxy_access.log main; error_log /var/nginx/logs/http_proxy_error.log debug; if ($host ~* "^pj.123.com$") { rewrite ^/(.*)$ https://pj.123.com:7956$request_uri permanent; } } server { listen 7956 ssl; server_name pj.123.com; add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always; access_log /var/nginx/logs/https_proxy_access.log main; error_log /data/nginx/logs/https_proxy_error.log debug; gzip on; gzip_comp_level 9; gzip_types text/css text/plain text/xml application/javascript application/x-javascript application/html application/xml image/png image/jpg image/jpeg image/gif image/webp image/svg+xml; charset utf-8; ssl_certificate /etc/sssl_cert/pj.123.com.crt; ssl_certificate_key /etc/ssl_cert/pj.123.com.key; ssl_session_timeout 5m; ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4; ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3; ssl_prefer_server_ciphers on; location / { proxy_pass https://pj.abc.com; proxy_connect_timeout 30; proxy_read_timeout 60; proxy_send_timeout 60; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header REMOTE-HOST $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; #proxy_set_header Connection "upgrade"; #proxy_set_header Upgrade $http_upgrade; proxy_set_header X-Forwarded-Proto $scheme; proxy_ssl_server_name on; } } 我看了下日志，似乎是报 SSL 的问题 2025/08/08 03:46:46 [error] 22#22: *7 peer closed connection in SSL handshake (104: Connection reset by peer) while SSL handshaking to upstream, client: 3.5.2.4, server: pj.123.com, request: "GET / HTTP/1.1", upstream: "https://104.21.89.160:443/", host: "pj.123.com:7956" 2025/08/08 03:46:46 [warn] 22#22: *7 upstream server temporarily disabled while SSL handshaking to upstream, client: 3.5.2.4, server: pj.123.com, request: "GET / HTTP/1.1", upstream: "https://104.21.89.160:443/", host: "pj.123.com:7956" 2025/08/08 03:46:46 [error] 22#22: *7 peer closed connection in SSL handshake (104: Connection reset by peer) while SSL handshaking to upstream, client: 3.5.2.4, server: pj.123.com, request: "GET / HTTP/1.1", upstream: "https://172.67.189.154:443/", host: "pj.123.com:7956" 2025/08/08 03:46:46 [warn] 22#22: *7 upstream server temporarily disabled while SSL handshaking to upstream, client: 3.5.2.4, server: pj.123.com, request: "GET / HTTP/1.1", upstream: "https://172.67.189.154:443/", host: "pj.123.com:7956" 2025/08/08 03:46:46 [error] 22#22: *7 no live upstreams while connecting to upstream, client: 3.5.2.4, server: pj.123.com, request: "GET /favicon.ico HTTP/1.1", upstream: "https://pj.abc.com/favicon.ico", host: "pj.123.com:7956", referrer: "https://pj.123.com:7956/"