• Home
  • WordPress
  • web Hosting
    • Free hosting
    • Cheap Hosting
    • comparison cloud , vps, shared, wordpress
    • managed wordpress hosting
    • managed cloud hosting
  • page Speed
  • Deals
  • Services
  • About

RAaz Kumar .com

wordpress tutorials seo hosting etc


nginx errors (504,502, 413, unable to start, syntax errors)

* “504 Gateway Timeout NGINX”

504 Gateway Time-out
increase timeout limit or disable it in nginx conf
php
max_execution_time = 300
request_terminate_timeout = 300 (same as execution time if you un-comment it)
fastcgi_read_timeout 300;
sometimes timeout in  fastcgi,conf
    fastcgi_read_timeout 300;
//
    fastcgi_buffers 8 16k;
    fastcgi_buffer_size 32k;
    fastcgi_connect_timeout 90s;
    fastcgi_send_timeout 90s;
    fastcgi_read_timeout 90s;
    proxy_read_timeout 90s;
(if noting mentioned defaults are applicable
nginx as a proxy
  proxy_connect_timeout       300;
  proxy_send_timeout          300;
  proxy_read_timeout          300;
  send_timeout                300;
nginx disable gateway timeout
unfortunately no way to disable but you can increase upto 30 mins
300s = 5 mins
     fastcgi_read_timeout 300;
     proxy_read_timeout 300;
300s = 5 minutes then website loads at 5-7mins (should be in 2-3 secs)
for temporary requirement increase both php
mysql timeout
MySQL has its wait_timeout variable default value set to 28800 seconds (8 hours).

413 Request Entity Too Large

php
upload_max_filesize
post_max_size
at php.ini
    client_max_body_size 100M;  in nginx.conf
0 to disable.
client_header_timeout 3m;
client_body_timeout 3m;
send_timeout 3m;
client_max_body_size 100M;
nginx -s reload
LimitRequestBody 104857600 htaccess apache

502 bad gateway nginx ubuntu centos fix

nginx 502 bad gateway high traffic
522 error with cloudflare
increase fastcgi timeouts
browser >> web server>> application serer>> database serer
web server to wait (60s or 300s)
mostly in ms 2-3 seconds has to fully load.
check nginx error log
“fastcgi_connect_timeout” directive invalid value
41 client intended to send too large body
upstream timed out (php max execution time)
php or mysql too.
php-fpm related
php.ini
max_input_time
;   Default Value: -1 (Unlimited)
memory_limit = 512M
Maximum amount of memory a script may consume
upload_max_filesize = 400000M
Maximum allowed size for uploaded files.
request_terminate_timeout
max_execution_time = 120
input, execution, memory limit
input+execution= fastcgi read timeout
sendfile on; send_timeout 5m; client_header_timeout 5m; client_body_timeout 10; fastcgi_max_temp_file_size 2048m;
client_header_timeout 3m;
client_body_timeout 3m;
send_timeout 3m;
client_max_body_size 100M;

upstream timed out nginx php-fpm

fastcgi_read_timeout 120;
fastcgi_read_timeout 60s; //defaults
phpmyadmin
or
php
fastcgi timeout
\phpmyadmin\libraries\config.default.php
Open this configuration file in any editor and change $cfg[‘ExecTimeLimit’] = 300; to $cfg[‘ExecTimeLimit’] = 0;

Nginx Syntax errors in nginx.conf or serverblocks

 

nginx – s reload

Nginx -t

fix the errors

 

nginx unable to start

 

Simple but Complicated,

Finding running nginx in running Process using Grep Command.

$ ps aux | grep nginx

root@instance-1:~# ps aux | grep nginx

ps aux -P | grep nginx
www-data 2665 0.0 0.4 163360 18672 ? S Jul08 0:58 nginx: worker p rocess
www-data 2666 0.0 0.4 163080 18172 ? S Jul08 0:01 nginx: worker p rocess
www-data 2667 0.0 0.3 163080 14600 ? S Jul08 0:00 nginx: cache ma nager process
root 5210 0.0 0.0 14852 1040 pts/0 S+ 12:53 0:00 grep –color=au to nginx
root 23446 0.0 0.3 158700 15916 ? Ss Mar13 0:04 nginx: master p rocess /usr/sbin/nginx -c /etc/nginx/nginx.conf

 

Kill Nginx Process and restart

Kill the Process by its number.

kill: 2665

less /var/log/nginx/error.log

netstat -tulpn | grep :80 (to know which application occupied this port)

Then again Start the Nginx , If any syntax errors in config files fix and start.

reinstall the web server nothing gonna lose except config file so back it up.

 

cloudflare 522 error fix

 

just increase the timeout limit both php & nginx. 1 minutes to 5 minutes not necessary.(mens there is cpu outage so its taking long time.

 

also read speed up website in 3 seconds

Nginx error log location

/var/log/nginx/error. log

 

try this command

less /var/log/nginx/error.log

last 10 lines.

and understand the errors related php-fpm errors or wordpress errors, mysql etc related.

Tuning Nginx Performance Perfect nginx.conf

Related topics:

  1. fix error 520 522 524 on cloudflare wordpress godaddy nginx etc
  2. nginx conf explained best config file performance tuning tips nginx.conf location errors tutorial
  3. Pagespeed module install, configure, monitor, errors ft nginx &apache
  4. xampp tutorials 2021 installation errors fix wordpress phpmyadmin mysql apache
  5. monitor nginx request with nginx status amplify datadog new relic

tutorials

  • Vivek Bindra Videos Transcription (business strategy)
  • git commands
  • new relic php agent install in 3 steps
  • new relic mysql install integration - 2 ways fix problems
  • new relic installation linux (infrastructure agent , php, mysql , nginx)
  • xampp tutorials 2021 installation errors fix wordpress phpmyadmin mysql apache
  • Redis performance metrics & tuning for nginx apache ubuntu & debian
  • Devops course Syllabus topics PDF AWS, Azure, cisco, redhat
  • CCNA Syllabus pdf (CCNA / CCNP vs devops vs mcsa /MCSE)
  • how to create a website free of cost on google
  • what is vpn vs proxy vs tor, http vs https, http2, tcp vs udp, kali linux sql source code injection
  • nginx server tutorials (installation, configuration, performance tuning, security)
    • Top 10 tips to improve nginx server security
    • install phpmyadmin ubuntu nginx 22.04
    • php fpm install ubuntu 20.04 nginx
    • nginx upstream response is buffered to a temporary file
    • php fpm ondemand vs dynamic vs Static (the dynamic pool problem)
    • Php fpm configuration for 1000 concurrent connections server busy max children reached
    • php fpm seems busy fixed warning and max children reached to handle max connections / requests
    • newrelic nginx integration process and errors fix and metrics
    • datadog nginx integration installation process
    • nginx rate limiting explained by location time specific url
    • SSL faster reduce TLS hand shake improve https performance
    • monitor nginx request with nginx status amplify datadog new relic
    • nginx installation on ubuntu 20.04 LTS
    • enable brotli compression nginx brotli vs gzip
    • nginx performance tuning
    • Letsencrypt SSL Installation on apache/Nginx ubuntu / debian wordpress
    • letsencrypt install configure on ubuntu / debian nginx
    • what is TTFB & how to Reduce it (server response time) Google pagespeed
    • php fpm restart nginx ubuntu enable status page, monitor etc
    • php fpm pool manager configuration settings based on server spike high cpu wordpress
    • nginx modules list (enable, disable, upgrade, install dynamic module)
    • nginx rewrite rules with examples 301 redirection
    • use nginx as reverse proxy and load balancer for apache wordpress
    • nginx conf explained best config file performance tuning tips nginx.conf location errors tutorial
    • nginx errors (504,502, 413, unable to start, syntax errors)
    • Pagespeed module install, configure, monitor, errors ft nginx &apache
    • Apache vs nginx (connection handling, modules, memory usage)
    • install LEMP Stack on 22.04 LTS Nginx MySQL PHP fpm #wordpress #digital ocean
    • nginx fastcgi cache wordpress how to configure
    • fix error 520 522 524 on cloudflare wordpress godaddy nginx etc
  • MySQL Tutorial (create,connect database, update tables, export etc) Documentation & TIPS
  • AUdio Editing Background Noise removal (Audacity, Adobe Premiere Addition, Camtasia Filmora Windows Obs)
  • Android Studio tutorials syllabus Topics Course details #AndroidApplicationDevelopment
  • [INTRO] Ethical hacking / cyber Security / Penetration testing Tutorial -{updates frequently}
  • redis install ubuntu 20.04 with wordpress php redis mysql configuration
  • ubuntu tutorials installation download issues etc
  • Php tutorials
  • HTML & CSS Tutorials
  • Core Java Tutorial Free online
  • Linux sysadmin tutorials linux system administrator
  • apache server tutorial (install,config, performance tuning, security, error handling)

 

 

wordpress Pagespeed optimization

Digitalocean free $100 Credit

Cloudways Review pricing promo codes

Siteground cpu limits Pricing

Shared Hosting

Managed wordpress Hosting

Managed Hosting Cloud server

VPS Hosting

Cloud Hosting – Unmanaged

Google cloud Pricing

Aws Pricing

Azure pricing

nginx server tutorials

apache server tutorials

linux sysadmin tutorials

mysql Commands list pdf

LEMP Install Ubuntu

Mysql Performance Tuning

Nginx Performance tuning

Linux Performance tuning

Php -fpm performance tuning

Redis Performance tuning

linux server security

nginx security best practices

wordpress security plugins

 

 

wordpress

 

Top 5  WP Google Analytics Plugins

WP Backup Plugins

Wp Comment Plugins

Top wordpress Security Plugins

WP Seo Plugins

WP Caching Plugins

Best Adsense Plugins for WordPress

Wp social Sharing Plugins

autoshare social media plugins

WP speed Optimization Plugins

Speedup WordPress google Score

More Wp tuts

Server Admin Cloud

 

Installing Nginx LEMP On ubuntu

Installing apache Lamp ubuntu

nginx fastcgi cache enable

php – fpm install  & Configuration

Opcache install & Configure

php -fpm pool manager explained

Mysql Install & Configuration

Redis Object cache install & configure

 

Nginx as Reverse Proxy and Load balancer

Load Balance / auto scaling in google cloud

Linux Commands PDF

Mysql Commands Pdf

Letsencrypt tutorial

mysqldump export & import 

Pagespeed Module install & configure

nginx.conf best file

mysql.conf best file

upgrade ubuntu

© 2023 - All Rights Reserved Disclaimer & Privacy Policy