求助， nginx 做正向代理出现 502 bad gateway

使用 nginx 做内网服务器的正向代理，更新 npm 依赖的时候会出现 502

nginx 配置

worker_processes auto; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; log_format ty_proxy_log_format '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for" ' '"$upstream_addr"'; gzip on; gzip_http_version 1.0; gzip_comp_level 6; gzip_proxied any; #gzip_min_length 500; gzip_buffers 16 8k; gzip_types text/plain application/x-Javascript text/css application/xml text/Javascript application/x-httpd-php application/Javascript application/json; server { charset utf-8; resolver 114.114.114.114; listen 880 default_server; proxy_connect; proxy_connect_allow all; proxy_connect_connect_timeout 60s; proxy_connect_read_timeout 60s; proxy_connect_send_timeout 60s; access_log logs/proxy_access.log ty_proxy_log_format; location / { proxy_pass $scheme://$host$request_uri; proxy_set_header HOST $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_redirect off; proxy_set_header X-NginX-Proxy true; proxy_ssl_server_name on; proxy_connect_timeout 600; proxy_read_timeout 600; proxy_send_timeout 600; proxy_buffer_size 64k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; proxy_next_upstream error timeout invalid_header http_502; } error_page 405 =200 @405; location @405 { proxy_method GET; proxy_pass $scheme://$host/$request_uri; } } server { listen 80; server_name localhost; location / { root html; index index.html index.htm; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } } 

nginx 日志

access 日志 [23/Jun/2023:17:00:29 +0800] "CONNECT registry.npmmirror.com:443 HTTP/1.1" 502 157 "-" "-" "-" "-" error 日志 2023/06/23 17:00:29 [error] 26952#45320: *3314 proxy_connect: upstream connect failed (10051: A socket operation was attempted to an unreachable network) while connecting to upstream, client: 172.30.30.80, server: , request: "CONNECT registry.npmmirror.com:443 HTTP/1.1", host: "registry.npmmirror.com"