首先请原谅，如果这个问题很简单。
我有一台Ubuntu和nginx的服务器。 总是工作，而http使用，但后我添加证书，并尝试启用https我收到这个错误nginx: [emerg] host not found in upstream "api" 。
这是我的configuration：
upstream api { least_conn; server 176.9.91.243:7123; } upstream api2 { least_conn; server 176.9.32.170:7123; } server { # listen 80; listen 443; ssl on; ssl_certificate /etc/ssl/chain.crt; ssl_certificate_key /etc/ssl/ssl_key.key; add_header Strict-Transport-Security "max-age=31536000"; add_header Content-Security-Policy "block-all-mixed-content"; root /var/www/hosting; index index.html index.htm; client_max_body_size 15m; server_name serverName.com; gzip on; gzip_min_length 1000; gzip_proxied expired no-cache no-store private auth; gzip_types text/plain application/javascript application/x-javascript text/javascript text/xml text/css; set $const 1; location /signalr { limit_conn addr 1000; access_log off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass https://api2/signalr; proxy_ssl_session_reuse off; proxy_set_header Host $http_host; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 120s; proxy_buffering off; keepalive_timeout 120s; } location /api/signalr { limit_conn addr 1000; access_log off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass https://api2/signalr; proxy_ssl_session_reuse off; proxy_set_header Host $http_host; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 120s; proxy_buffering off; keepalive_timeout 120s; } location /api/notifications{ limit_conn addr 1000; access_log off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass https://api2/notifications; proxy_ssl_session_reuse off; proxy_set_header Host $http_host; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 120s; proxy_buffering off; keepalive_timeout 120s; } location /api/notificationhistory{ limit_conn addr 1000; access_log off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass https://api2/notificationhistory; proxy_ssl_session_reuse off; proxy_set_header Host $http_host; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 120s; proxy_buffering off; keepalive_timeout 120s; } location /api/swagger { access_log off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass https://api/swagger; proxy_ssl_session_reuse off; proxy_set_header Host $http_host; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 120s; proxy_buffering off; keepalive_timeout 120s; } location /api { limit_conn addr 3000; rewrite /api(.*) /$1 break; proxy_read_timeout 60s; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-NginX-Proxy true; proxy_pass https://api; proxy_ssl_session_reuse off; proxy_set_header Host $http_host; proxy_redirect off; #access_log /var/log/nginx/api-access.log upstreamlog; } }
问题只发生在api上游，而api2正常工作。 如果我直接在proxy_pass使用IP，它也可以。 我错过了什么？ 谢谢。