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Questions tagged [502-error]

HTTP Error 502 Bad gateway

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NGINX 502 Bad Gateway error inside Docker container

I haven't had any issues with my Docker container or NGINX until today where I am getting a random unexpected 502 Bad Gateway error even though I have made no changes to my configuration files, Docker ...
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check-host.net "broken pipe" HTTP status on my Bluehost Wordpress Nginx

Issue: 502 Bad Gateway So our team always reaches out to Bluehost Support regarding the issue. They can't fix it by themselves. We can't fix it either on the WordPress dashboard. Please see attached ...
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app engine using react.js and node.js. Our database is on Cloud SQL, when a call is made from the app, it returns with 502 error nginx

When a user clicks on the button to create a new record in the database these errors are returned: (anonymous) @ xhr.js:210 e.exports @ xhr.js:15 e.exports @ dispatchRequest.js:56 u.request @ Axios.js:...
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Nginx 502 bad gateway SSL routines:ssl3_read_bytes:tlsv1 alert decrypt error:SSL alert number 51

I'm handling a website build using nginx as web layer and apache as app layer, previously the website running smooth, but recently, the website start showing 502 bad gateway nginx, the 502 bad gateway ...
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178 views

nginx always serves 502 Bad Gateway

I am trying to run a proxy with Nginx and I implemented the following tutorial as preparation. I did exactly as instructed here and I was served a 502 Bad Gateway result when I entered http://develop....
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Django Vue.js Nginx POST request ERROR 502 (Bad Gateway), when using DRF API

I have deployed Vue.js and Django E-commerce on VPS, where I set up Nginx and Gunicorn. All pages are working fine, all pages from Vue.js and the Admin area of Django. But when it comes to use forms ...
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50 views

Throwing 404 errors AWS

What might be the possible reason why the 502s were being returned here? The 403s also look like WAF is firing them. Could anyone please suggest a way to allow those resources to be safely given to ...
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1 vote
1 answer
323 views

Angular server side rendering keeps going down to 502 errors

So I have been running my front end on the server for a few weeks now(angular Server Side rendering). I keep running into this issue where the front end goes down to a 502 error. I have to restart the ...
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1 answer
325 views

Cloudfront 502 error with ALB origin in different region

I have a CloudFront which has one of its origins as an application load balancer, this load balancer is available in a different region from the CloudFront which is only available in N.Virginia and is ...
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9 views

nginx reverse-proxy 502 (111: connection refused) while connecting to upstream [duplicate]

I have the following nginx configuration: server { listen: 8080; location / { proxy_pass https://somehost.abc.xyz; proxy_redirect off; ...
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79 views

Error 502 that randomly occur

I migrated from AWS t3.large to c5.xlarge after that I got a lot of 502 errors. Here is what the Nginx error log looks like 2021/07/04 14:20:41 [error] 6445#6445: *349471 upstream sent unexpected ...
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57 views

Apache HTTP proxy work for some destination ip and receive 502 Bad Request from other destinations

I've an HTTP proxy like this: Listen 8240 <VirtualHost *:8240> ProxyRequests On <Proxy "*"> SetEnv force-proxy-request-1.0 1 SetEnv proxy-nokeepalive 1 </Proxy> </...
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1 answer
514 views

phpmyadmin error 502 Bad Gateway on nginex

i just installed phpmyadmin on my ubuntu 20.04 server but when I try to go to the site I have a 502 bad gateway error ... here is what I have in my LOG file : 2021/02/05 14:43:33 [crit] 662288#662288: ...
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  • 1
1 vote
1 answer
762 views

Wordpress import process ends in 502 Bad Gateway error

I have a Wordpress website which have been working flawlessly for a while now in a LEMP with Ubuntu. However, today I had to import a previously exported XML from another Wordpress and in the middle ...
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1k views

502 Bad Gateway when uploading files (NGINX and NodeJS)

I am developing an app where the user can upload files. While the backend call seems to work fine, the call when uploading files returns a 502 Bad Gateway message. The files actually get uploaded but ...
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212 views

502 Error from nginx server after setting up http2 and ssl

I am getting a 502 error from my nginx server. I used certbot to configure the ssl and am trying to get http2 enabled and somehow i broke the server. when I run sudo nginx -t it reads: nginx: [warn] ...
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3 votes
2 answers
2k views

PHP/FPM/Nginx Issue: Runs fine for a hours, then maxes FPM children in a matter of seconds, resulting in 502 errors

We recently migrated a long running (without issue) Ubuntu 16.04 / nginx (1.10.3) / PHP 7.0 stack over to an Ubuntu 18.04 / nginx (1.14.0) / PHP 7.2 stack. The result has caused instability at the PHP-...
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0 votes
1 answer
2k views

Laravel docker cron nginx 502 bad gateway issue

I am using my laravel app in a docker container. Everything worked fine until I added a cron to the dockerfile. I need to schedule a job so I need a cron. My compose file looks like this version: '3' ...
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  • 1
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1 answer
465 views

Nginx custom 502 page with nested proxies

I know how to create a custom 502 page for an upstream error and did it without problems many times, however in this particular case where one proxied response is passed to another proxy I can't find ...
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1 vote
0 answers
43 views

My web application is running on One Server and two worker nodes

my nginx config file is server { listen ip-address:80 ; server_name subdomain.domain.com; server_name www.subdomain.domain.com; server_name ipv4.subdomain.domain.com; ...
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1 answer
223 views

Lighttpd/Nginx Non-Functional

I'm using the Blackboard AMI from AWS and can't get the lighttpd to function on it. I continually get 502s. I've run service lighttpd status which gave me back: ● lighttpd.service - Lighttpd Daemon ...
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2 votes
1 answer
5k views

How to configure nginx.conf and php-fpm using brew servinces in MAC-OS in order to run php?

I have following logs in php-fpm log . [19-Jan-2020 15:09:33] NOTICE: [pool www] 'user' directive is ignored when FPM is not running as root [19-Jan-2020 15:09:33] NOTICE: [pool www] 'user' directive ...
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1 vote
1 answer
4k views

Proxy Error 502 "Error reading from remote server" Apache 2.4.18 Ubuntu with HTTPS into Docker container

I'm no expert and can't see what's the problem, but obviously this error is caused by a tiny detail it seems I can't debug. Any idea? What I have: I have multiple virtual hosts configured with Apache2 ...
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1 answer
3k views

nginx gunicorn django 502 worker timeout just on some pages

I configured a django app with gunicorn and nginx all was working perfectly until the installation of SSL certifiate on the server. firstly all pages were served perfectly but after some time some ...
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3 votes
1 answer
151 views

Apache Local virtualhosts not working (502 error) [closed]

My local dev environment consists of a mac with OSX El Capitan 10.11.6. I have Apache 2.4.28 installed. Something seems to have gone wrong with my virtual host configuration as none of my local ...
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  • 151
4 votes
1 answer
12k views

Difference between keepalive in apache2.conf and in ProxyPass

I am using Apache 2.2.22 What is the difference, if there is any, between the Keepalive directive in /etc/apache2/apache2.conf # # KeepAlive: Whether or not to allow persistent connections (more ...
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1 answer
2k views

Almost all the http APIs return a 502 bad gateway error after adding a CDN

I just added my website to a CDN provider https://www.qiniu.com/en. Then I realised that almost all my http APIs (https://www.funfun.ink/httpOnly...) returned a 502 bad gateway error. Additionally, ...
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3 votes
1 answer
1k views

After upgrade from ubuntu 14.04 to 16.04, nginx error 502: bad gateway until nginx is restarted

I have researched this problem, but in most cases the cause of the 502 error is an improperly configured nginx.conf or upstream service. I believe this is different.. As the title suggests, I ...
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598 views

HTTP 502 (Bad Gateway), niginx connect() to 127.0.0.1:8889 failed (99: Cannot assign requested address) while connecting to upstream

We have a server application running behind nginx, and the client side will keep getting and writing data to it through HTTP request but should return really fast. After running sometime, client side ...
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1 vote
1 answer
924 views

502 error when wordpress site hosted on AWS, but not Google cloud

I've got a problem with my wordpress site that means I get a 502 bad gateway error. The site is hosted on AWS (EC2 instance). I migrated the site to a google cloud instance to test if that would ...
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  • 21
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2 answers
7k views

NGINX and PHP-FPM 502 bad gateway

Ok so here is the situation, we currently have a server and we are now migrating to AWS. We have somehow identical configuration and we already tried to run apache benchmark so the PHP-FPM pool is ...
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2 answers
167 views

How to config Ngnix to achieve any possible website error for testing [closed]

I'm developing a website using Django framework and Nginx. Would like to create a false system error and observer how my system responds. This is a nice article however this only create false Error ...
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1 answer
72 views

Apache server throw me 502 error when I try to access site with Public IP

I have a little strange case. I configured two servers in AWS: Develop and QA, the two with Ubuntu 16.04, Apache 2 and PHP 7.0. I created a website en Develop, and configured its VirtualHost file. So,...
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-1 votes
0 answers
937 views

centOS 7 nginx 502 bad gateway error [closed]

im using VPS with 2 cores 3GB ram 1.5GB swap i been using nginx for more than year and i have not had any problem, nginx only uses between 300 to 700MB ram only my website is not so busy i get between ...
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3 votes
1 answer
11k views

Nexus returns error 502 (Bad Gateway) when publishing artifacts

I've just completed the installation of Sonatype Nexus 3.2.1-01 and I'm trying to publish some artifacts using a Jenkins job and the Nexus Artifact Uploader 2.9 plugin. The upload starts fine: 100 % ...
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  • 161
2 votes
1 answer
18k views

Nginx reverse proxying to upstream getting 502 Bad Gateway?

My current Application deployment is receiving traffic on HTTP port and Nginx redirect it to HTTPS. This is working fine. Now we are planning to have another Nginx server act like a Load balancer to ...
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  • 133
2 votes
1 answer
17k views

502 "Error reading from remote server" when upstream service errors

I have apache set up as a reverse proxy. When the upstream service has an error (e.g. 500) the error is not returned to the client, but instead apache serves up a 502 "Error reading from remote server"...
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  • 155
1 vote
1 answer
13k views

502 bad gateway nginx and apache servers

Hello there can you please help me im trying to setup apache and nginx server on my ubuntu 16.04 server, but when i try to visit localhost/info.php fo example im getting 502 Bad Gateway nginx/1.9....
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  • 123
2 votes
0 answers
4k views

Squid 502 errors

I am using Squid 3.3.13 with no cache enabled and all my clients in LAN are using it to access to HTTP and HTTPS websites. I am not using it as transparent proxy but clients have it configured in OS ...
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0 votes
2 answers
2k views

Setup GitLab behind nginx with https and responding on different port

Dear serverfault community, I have recently installed bundled GitLab on my VPS running Ubuntu14.04. To get it running, I have used nginx, which is routing one particular subdomain to GitLab over http....
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1 vote
0 answers
2k views

Listening to 127.0.0.1:9000 but var/run/php5-fpm.sock failed (2: No such file or directory)

I have a webserver configured to accept FastCGI requests at 127.0.0.1:9000 like below. /etc/php5/fpm/pool.d/www.conf: listen = 127.0.0.1:9000 /etc/nginx/sites-enabled/mysite: location ~ .php$ { ...
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  • 125
1 vote
2 answers
265 views

nginx default error page stopped working for some reason

This used to work: server { server_name example.com; location / { proxy_pass http://localhost:8888; error_page 502 /502.html; } location = /502.html { root /var/www/example; } ...
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  • 215
2 votes
0 answers
179 views

How to distinguish between internal error code 502 and upstream returned http_502 on a nginx proxy

We use nginx as a http proxy server.The following configuration: location / { proxy_pass_header Server; proxy_pass $scheme://$http_host$request_uri; } When urls proxied return error code 502 ...
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4 votes
2 answers
14k views

How to add a fallback to my proxy in nginx?

I am trying to build a proxy for my node application through nginx thinking this will give me error pages if the node application failed or is not available on the port. The node app runs on 127.0.0....
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  • 285
3 votes
0 answers
2k views

Docker: Nginx and hhvm socket configuration returns 502 Bad Gateway

I am trying to run nginx and hhvm with docker-compose and socket file configuration but it returns a 502 error. I can access to conf/hhvm/run/ from nginx and hhvm image. In the error.log nginx's file ...
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  • 31
1 vote
1 answer
2k views

502 Error When Trying to Post/Update in Wordpress After HHVM Installation

I'm hoping someone can lead me in the right direction of how to track down this problem. I recently had HHVM installed on my server with PHP as a fallback. Since then I've been having issues in WP ...
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  • 11
2 votes
1 answer
1k views

Apache RewriteRule 502 Error on dev server, works on live

I'm on Apache 2.2.15. My vhost.conf contains a RewriteRule to handle article URLs; # handling for neat article titles RewriteRule ^/news/[0-9]{4}/[A-za-z]{3}/([0-9a-zA-Z-]*)/([0-9]{4})([0-9]{6})/?$ "/...
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  • 153
4 votes
2 answers
380 views

Upgrade 2 Ghost blogs on same server, 1 quits immediately when run as a service

I have 2 Ghost blogs on a Digital Ocean server running: Ubuntu 14.04.3 LTS Nginx 1.4.6 (Ubuntu) Node v0.12.7 I used the instructions provided by Digital Ocean to set up the blogs, and they have ...
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0 votes
0 answers
1k views

Random 502 errors only with phpMyAdmin throgh nginx/php-fpm, with php segfault

I'm using nginx and php-fpm on many servers. Some have php 5.4 with APC and others 5.5 or 5.6 with opcache. PhpMyAdmin on servers on 5.4 work without any problems. PhpMyAdmin on servers on 5.5 or 5.6 ...
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  • 101
0 votes
2 answers
1k views

Nginx throws 502 intermittently on every page when using fastcgi_finish_request()

I recently inherited administration over 2 Nginx boxes in AWS and am very unfamiliar with how PHP-FPM works (and doens't work). I recently integrated Keen.IO for backend user logging, using: ...
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  • 103