⚡ Nginx Errors

29 error notes

Fixing Nginx 'conflicting server name' - Stop Your Virtual Hosts from Being Ignored

nginx: [warn] conflicting server name "example.com" on 0.0.0.0:443, ignored

nginxdevopsserver-configtroubleshooting

Fixing Nginx (111: Connection refused) while connecting to upstream

connect() failed (111: Connection refused) while connecting to upstream, client: 1.2.3.4, server: example.com, upstream: "http://127.0.0.1:3000/"

nginxupstreamconnection-refusedtroubleshooting

nginxintermediate

Fixing Nginx 414: Handling 'Request-URI Too Large' for Long URLs

414 Request-URI Too Large

nginx414request-urisysadmin

nginxintermediate

Fix Nginx 'no resolver defined' Error for Dynamic proxy_pass

no resolver defined to resolve "api.example.com", client: 1.2.3.4, server: example.com, request: "GET / HTTP/1.1", upstream: "http://api.example.com/"

nginxdnsresolverproxy_pass

nginxintermediate

Fix Nginx Error: could not allocate new entry in shm zone "mylimit"

could not allocate new entry in shm zone "mylimit" while logging request

nginxrate-limitingshm-zonelimit_req

nginxintermediate

How to Fix Nginx '1024 worker_connections are not enough' Error

1024 worker_connections are not enough, reopen logs

nginxperformanceworker_connectionssysadmin

nginxintermediate

Fixing Nginx 400 Bad Request on WebSocket Reverse Proxy: Missing Upgrade and Connection Headers

upstream prematurely closed connection while reading response header from upstream

nginxwebsocketreverse-proxyupgrade

nginxintermediate

Fix Nginx 'invalid PID number' Error When Reloading or Stopping Service

nginx: [error] invalid PID number "" in "/run/nginx.pid"

nginxpidreloadsystemd

nginxintermediate

Fixing Nginx Error: [emerg] module is not binary compatible

nginx: [emerg] module "/etc/nginx/modules/ngx_http_geoip_module.so" is not binary compatible

nginxdynamic-modulegeoipcompatibility

Fix Nginx 'nginx: [emerg] unknown directive' Configuration Syntax Error

nginx: [emerg] unknown directive

nginxconfigurationsyntaxemerg

nginxintermediate

Fix Nginx 'could not build the server_names_hash' Error When Configuring Many Virtual Hosts

fatal: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_size: 64

nginxserver_nameconfig-errorvhost

nginxintermediate

Fix Nginx Error: upstream timed out (110: Connection timed out) while reading response header

upstream timed out (110: Connection timed out) while reading response header from upstream

nginxupstreamtimeoutproxy

nginxintermediate

How to Fix Nginx 499 (Client Closed Request) in Access Logs

GET /api/data HTTP/1.1" 499 0 "-" "Mozilla/5.0"

nginx499-errortimeoutclient-closed

nginxintermediate

Fix Nginx 'open() failed (13: Permission denied)' When Uploading Large Files

open() "/var/lib/nginx/tmp/client_body/0000000001" failed (13: Permission denied) while reading client request body

nginxpermissionuploadclient_body_temp

nginxintermediate

Fix Nginx 'cannot load certificate' SSL Error on Startup or Reload

nginx: [emerg] cannot load certificate "/etc/nginx/ssl/cert.pem": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory)

nginxssltlscertificate

Fixing the Nginx 'Primary script unknown' Error with PHP-FPM

FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream

nginxphp-fpmdevopstroubleshooting

nginxintermediate

Fixing Nginx (24: Too many open files) Upstream Errors

socket() failed (24: Too many open files) while connecting to upstream

nginxlinux-tuningdevopsserver-optimization

nginxintermediate

Fix Nginx 'connect() failed (13: Permission denied)' While Connecting to Upstream (SELinux)

connect() to 127.0.0.1:8080 failed (13: Permission denied) while connecting to upstream

nginxselinuxpermission-deniedupstream

nginxintermediate

Fixing Nginx Error: [error] host not found in upstream "backend.example.com"

[error] ... host not found in upstream "backend.example.com"

nginxdnsdevopsdocker

nginxintermediate

Fix Nginx 'upstream sent too big header while reading response header from upstream'

upstream sent too big header while reading response header from upstream

nginxproxy_buffer_sizehttp-header

nginxintermediate

Fix Nginx ERR_TOO_MANY_REDIRECTS: Solving the 'Internal Redirection Cycle'

rewrite or internal redirection cycle while internally redirecting to "/index.php"

nginxdevopsphp-fpmserver-config

nginxintermediate

Fixing the Nginx 'no live upstreams' Error: A Practical Guide

no live upstreams while connecting to upstream

nginxdevopsload balancingtroubleshooting

Fix nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)

nginx: [emerg] bind() to 0.0.0.0:80 failed (13: Permission denied)

nginxbindpermissionport

Fix Nginx "bind() to 0.0.0.0:80 failed (98: Address already in use)" Error

bind() to 0.0.0.0:80 failed (98: Address already in use)

Fix Nginx 403 Forbidden: Wrong Permissions or Missing Index File

403 Forbidden

nginxpermissions403directory

Fix Nginx 413 Request Entity Too Large Error

413 Request Entity Too Large

nginxuploadclient_max_body_size

nginxintermediate

Fix Nginx 504 Gateway Timeout Error

504 Gateway Timeout

nginxtimeoutgatewayproxy

nginxintermediate

Fix Nginx 'upstream sent invalid header while reading response header from upstream' with PHP-FPM

upstream sent invalid header while reading response header from upstream

nginxphp-fpmupstreamheader

nginxintermediate

Fix Nginx 502 Bad Gateway Error

502 Bad Gateway nginx

nginx502proxyupstream