Tonight to me happens the error “400 Bad RequestRequest Header Or Cookie Too Large nginx” and gets stuck on that, I was trying to change large_client_header_buffers but then I got 1024 workers_connetions not enough when I changed both it bounced from “400 Bad RequestRequest Header Or Cookie Too Large nginx” to workers_connections. I’m no familiar with nginx at all, but here is /etc/nginx/ngin.conf
# Server globals
user www-data;
worker_processes auto;
worker_rlimit_nofile 65535;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
# Worker config
events {
worker_connections 2048;
use epoll;
multi_accept on;
}
http {
include /home/igzak/cloudflare/allow-cloudflare.conf;
# Main settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
client_header_timeout 180s;
client_body_timeout 180s;
client_header_buffer_size 2k;
client_body_buffer_size 512k;
client_max_body_size 256m;
large_client_header_buffers 16 16k;
send_timeout 60s;
keepalive_timeout 30s;
keepalive_requests 100000;
reset_timedout_connection on;
server_tokens off;
server_name_in_redirect off;
server_names_hash_max_size 512;
server_names_hash_bucket_size 512;
charset utf-8;
# FastCGI settings
fastcgi_buffers 8 256k;
fastcgi_buffer_size 256k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k;
fastcgi_connect_timeout 30s;
fastcgi_read_timeout 300s;
fastcgi_send_timeout 180s;
fastcgi_cache_lock on;
fastcgi_cache_lock_timeout 5s;
fastcgi_cache_background_update on;
fastcgi_cache_revalidate on;
# Proxy settings
proxy_redirect off;
proxy_buffering on;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass_header Set-Cookie;
proxy_buffers 8 16k;
proxy_buffer_size 16k;
proxy_connect_timeout 30s;
proxy_read_timeout 300s;
proxy_send_timeout 180s;
# Log format
log_format main '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
log_format bytes '$body_bytes_sent';
log_not_found off;
access_log off;
# Mime settings
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Compression
gzip on;
gzip_static on;
gzip_vary on;
gzip_comp_level 6;
gzip_min_length 1024;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/plain text/css text/javascript text/js text/xml application/json application/javascript application/x-javascript application/xml application/xml+rss application/x-font-ttf image/svg+xml font/opentype;
gzip_proxied any;
gzip_disable "MSIE [1-6]\.";
# Cloudflare https://www.cloudflare.com/ips
include /etc/nginx/conf.d/cloudflare.inc;
# SSL PCI compliance
ssl_session_cache shared:SSL:20m;
ssl_session_timeout 60m;
ssl_buffer_size 1400;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_prefer_server_ciphers on;
ssl_ciphers "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS";
ssl_dhparam /etc/ssl/dhparam.pem;
ssl_ecdh_curve secp384r1;
ssl_session_tickets off;
resolver 127.0.0.53 valid=300s ipv6=off;
resolver_timeout 5s;
# Error pages
error_page 403 /error/404.html;
error_page 404 /error/404.html;
error_page 410 /error/410.html;
error_page 500 501 502 503 504 505 /error/50x.html;
# Proxy cache
proxy_cache_path /var/cache/nginx levels=2 keys_zone=cache:10m inactive=60m max_size=1024m;
proxy_cache_key "$host$request_uri $cookie_user";
proxy_temp_path /var/cache/nginx/temp;
proxy_ignore_headers Expires Cache-Control;
proxy_cache_use_stale error timeout invalid_header http_502;
proxy_cache_valid any 1d;
# FastCGI cache
fastcgi_cache_path /var/cache/nginx/micro levels=1:2 keys_zone=microcache:10m max_size=1024m inactive=30m;
fastcgi_cache_key "$scheme$request_method$host$request_uri";
fastcgi_cache_methods GET HEAD;
fastcgi_cache_use_stale updating error timeout invalid_header http_500 http_503;
fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
add_header X-FastCGI-Cache $upstream_cache_status;
# Cache bypass
map $http_cookie $no_cache {
default 0;
~SESS 1;
~wordpress_logged_in 1;
}
# File cache (static assets)
open_file_cache max=10000 inactive=30s;
open_file_cache_valid 60s;
open_file_cache_min_uses 2;
open_file_cache_errors off;
# Wildcard include
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/conf.d/domains/*.conf;
}
