인프런 커뮤니티 질문&답변
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https 적용후 nginx 502 bad gateway 오류
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안녕하세요, 제로초님.
배포 후 nginx가 502 bad gateway 오류가 발생했는데,
어제는 잘 되다가 오늘 갑자기 안되서 질문드립니다...
서버를 AWS lightsail을 이용하였고, nginx/letsencrypt를 사용하여 https를 적용하였습니다. nginx 부분은 블로그에 작성하신 내용을 참고하였고, default와 .conf 파일 은 다음과 같습니다.
//etc/nginx/nginx.conf
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
events {
worker_connections 768;
# multi_accept on;
}
http {
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
ssl_prefer_server_ciphers on;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
gzip on;
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
/etc/nginx/sites-enabled/default
server {
listen 443 ssl;
server_name apis.hometownalba.com;
ssl_certificate /etc/letsencrypt/live/apis.hometownalba.com/fullchain.pem; # managed b
y Certbot
ssl_certificate_key /etc/letsencrypt/live/apis.hometownalba.com/privkey.pem; # managed
by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf;
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
location / {
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
user www-data;
user www-data;
}
server {
listen 443 ssl;
server_name apis.hometownalba.com;
ssl_certificate /etc/letsencrypt/live/apis.hometownalba.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/apis.hometownalba.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf;
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
location / {
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header X-Real-IP $remote_addr;
proxy_pass http://127.0.0.1:3065;
proxy_redirect off;
proxy_connect_timeout 300;
proxy_send_timeout 300;
proxy_read_timeout 300;
}
}
그리고 error log를 찍어보았는데, 다음과 같았습니다.
2021/11/10 05:36:35 [error] 1603#1603: *5 upstream prematurely
closed connection while reading response header from upstream,
client: 1.238.158.106,
server: apis.hometownalba.com,
request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:3065/",
host: "apis.hometownalba.com"
2021/11/10 05:39:37 [error] 1684#1684: *5 upstream prematurely
closed connection while reading response header from upstream,
client: 1.238.158.106,
server: apis.hometownalba.com,
request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:3065/",
host: "apis.hometownalba.com"
매번 답변 감사드립니다 ㅠㅠ
답변 1
0
말씀해주신대로 확인해보았는데,
Error: connect ETIMEDOUT 54.75.89.97:6379
0|server | at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1159:16) {
0|server | errno: -110,
0|server | code: 'ETIMEDOUT',
0|server | syscall: 'connect',
0|server | address: '54.75.89.97',
0|server | port: 6379
0|server | }
이 에러가 반복이 됩니다..
서버 실행할때 nginx를 start하고 sudo npm start 순으로 진행을 하는데, 잘못된걸까요??