nginx 500X problems 504 gateway nginx timeout error 522 524 cloudflare

500X problems related series unlike 404 not found 301 redirect 200 ok

nginx side proxy readtimeout (Fixed)

500x error fix

client_header_timeout 300;
client_body_timeout 300;
fastcgi_read_timeout 300;
client_max_body_size 32m;
fastcgi_buffers 8 128k;
fastcgi_buffer_size 128k;

if still not solved try below

in case of fastcgi

fastcgi_buffers 8 128k;
fastcgi_buffer_size 256k;
fastcgi_read_timeout 600;
fastcgi_send_timeout 600;
proxy_connect_timeout 600;
proxy_send_timeout 600;
proxy_read_timeout 600;
send_timeout 600;

how to fix 504 gateway nginx timeout error cloudflare 522 524 error in wordpress in vps server.

how to fix 504 gateway nginx timeout error?

504 gateway time out problem description.

This problem is entirely due to slow IP communication between back-end computers, possibly including the Web server. Only the people who set up the network at the site which hosts the Web server can fix this problem.

what is nginx?

Nginx is an open source reverse proxy server for HTTP, HTTPS, SMTP, POP3, and IMAP protocols, as well as a load balancer, HTTP cache, and a web server. The nginx project started with a strong focus on high concurrency, high performance and low memory usage.

how nginx causes 504 timeout?

this error appears mainly nginx installed servers. because nginx reduces max_execution_time for .php script.

how to fix 504 error in nginx servers.

simply we need to increase timeout range unfortunately newbies without knowledge can’ do this we need to contact hosting support for increasing limit. some times it’s not worked hosting providers ask permission you to uninstall nginx. if you do this you are out of 504 gateway error. but you get high cpu load on server.

how to increase the timeout limit in ngnix?

/etc/ngnix/ngnix.conf

send_timeout 120;
proxy_read_timeout 120;
proxy_connect_timeout 120;

If they are not there you may add them or create a .conf file in /etc/nginx/conf.d/ folder with those values.
Then restart nginx:
# /etc/init.d/nginx restart

fix nginx 502 bad gateway

open /etc/nginx/nginx.conf
add the following lines into http section :

1 2	fastcgi_buffers 8 16k; fastcgi_buffer_size 32k;

you config should look like this :

http {

fastcgi_buffers 8 16k;

fastcgi_buffer_size 32k;

}

Restart nginx and fastcgi.

resource may help you

http://www.nginxtips.com/502-bad-gateway-using-nginx/

http://www.unixmen.com/how-i-fixed-nginx-502-bad-gateway-error/http://stackoverflow.com/questions/3704626/nginx-502-bad-gateway-error-only-in-firefox

Fix nginx 502 Bad Gateway error