Plesk 11.x / Linux :: Access To CPanel - 502 Bad Gateway Error Nginx On Multiple Domain
Feb 18, 2015
Our server : [URL] .....
plesk v11 (64BITS)
We found 502 Bad Gateway error Nginx on multiple domain "currently troissoeursetunfrere.com is a wordpress site e-commerce" and also malittleboutique.com ecommerce wordpress, possibly to fix this problem we have followed this tutorial " [URL] ....
We are running Plesk 12 (latest version) on openSuse 13.1. The web server is nginx as a proxy in front of Apache. We are running into a 502 Bad Gateway nginx error when trying to send data from a simple form to a php script.
The log shows: upstream prematurely closed connection while reading response header from upstream
It seems that Plesk does not configure nginx properly as some pages, especially pages that are accessed via https have broken headers. The headers of a page that is displaying
HTTP/1.1 400 Bad Request => Server => nginx Date => Sat, 26 Jul 2014 09:53:13 GMT Content-Type => text/html Content-Length => 166 Connection => close
Since we switched to Plesk 12 and activated nginx the problem reoccurs reliably on every domain change. As soon as a customer creates a new domain or alias and Apache restarts nginx delivers 502 errors for maybe 10 seconds. After that everything is fine again.
The system is Debian 6.0.10 with Plesk 12.0.18 Update #38
That might not be a problem in small environments, but with >100 domains the timeout is annoying enough for customers to pick up the phone.
Adding this to /etc/sw-cp-server/config did not do the trick.
Today at 12.50 pm my (ubuntu 14.04.1 LTS) server running plesk 12.0.18 suddenly stopped serving websites. Any attempts to access a webpage on any vhost returned the 502 bad gateway using Nginx error messsage.When I looked at the nginx logs, I found messages like:
Connection refused) while connecting to upstream, client: m.m.m.m, server: , request: "GET /server-status HTTP/1.0", upstream: URL....
Restarting apache & nginx (/etc/init.d/apache2 restart & /etc/init.d/nginx restart) made no difference and I had to reboot to restore http access.
Strangely if I browsed with port 7080 specified (i.e. http://n.n.n.n:7080), this worked fine for all vhosts, so apache (which I believe is listening on this port while nginx listens on port 80) is working fine - nginx is just not able to pass stuff to it?
this is a fresh Plesk 12 installation on a Dedicated Server, on Debian 6. I haven't installed a License key yet.When i tried to run MIgration Manager, the loading was taking forever. Also, when i try to enter Webserver Configurations Troubleshooter, i get 502 Bad Gateway nginx error.In the /var/log/sw-cp-server/error_log i get this error:
Code: 2015/06/17 11:42:47 [error] 3918#0: *52 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: A.B.C.D, server: , request: "GET /modules/configurations-troubleshooter/index.php/index/list HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "X.X.X.X:8443", referrer: "https://X.X.X.X:8443/admin/module/list?context=modules" When i try to insert a Plesk License, i also get this error:
When I turn on nginx for the server I am able to browse non SSL protected sites correctly. I receive a 502 Bad Gateway error on any sites that have an SSL certificate. Is there a fix for this? I have been unable to find one.
I installed Nginx and PHP-FPM through the Plesk Autoinstaller.It works well with the default PHP version installed originally with the CentOS 6 system (5.3.3). I also installed manually following your KB [URL] .... additional versions of PHP. It works well, and I can use those additional versions through the Plesk UI.
Therefore, I was wondering how to use them with PHP-FPM? As when I activate a domain for Nginx with PHP process (PHP-FPM), it switches the PHP version to 5.3.3 and I can't change this parameter.
I have upgraded from 11.5 to 12, and now if I try to open Plesk on the port 8443 I have this error:
502 Bad Gateway
This is the log: 2014/06/27 18:25:13 [crit] 1629#0: *2 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: 188.8.131.52, server: , request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "184.108.40.206:8443"
Using Plesk 12 on a VPS with Ubuntu 12.04 LTS. In the Web Server Settings, if I select "Process PHP by nginx", then the URL "<domain>/plesk-stat/webstat/" is answered by Nginx with "404 Not Found". Having sniffed around, it seems:
/var/www/vhosts/system/VHOST/statistics/webstat is getting statistics gathered.I can't say if they are complete, or even sensible, but things are happening there.The various Alias and other statements required for access to AWStats via Apache are contained in the Apache config file /var/www /vhosts/system/VHOST/conf/last_httpd.conf..But no equivalent statements are generated in /var/www/vhosts/system/VHOST/conf/last_nginx.conf.
under Plesk 12.0.18 PHPMyAdmin is failing to import a 3 MB SQL dump of a simple Joomla website. "Error 505 Bad Gateway", it says.It happens with other dumps too, some as small as ~500 KB. The format (SQL or ZIP) of the file uploaded doesn't seem to matter, because the upload itself seems to work; it seems it's the post-processing what is raising the error.
The funny thing is that the import itself seems to work (the contents of the SQL dump are imported), but the error message appears and causes confusion and support requests from our clients./var/log/sw-cp-server/error_log says:
2015/05/15 03:19:31 [error] 10215#0: *5 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: XX.XX. XXX. XXX, server: , request: "POST /domains/databases/phpMyAdmin/import.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "xxxx. xxxxxxx.com:8443", referrer: URL.....To me it sounds like a timeout.
This seems to be a "popular" error among Plesk users, and I have tried this, this and this with no luck.
As I read, when Plesk and WHMCS are in the same server, you may have 502 bad gateway errors when creating an account through WHMCS..Page not Found/Timeout/502 Bad Gateway error creating accounts with Plesk 10+..By default Plesk 10 and above performs a forced restart of apache when an account is created or suspended which causes WHMCS to lose connection to the server, and if your WHMCS is on the same server, you will also lose connection to WHMCS at the same time.
In order to resolve this please refer to the following knowledgebase article for instructions on configuring Plesk to perform a graceful restart instead: URL..
But when I activate nginx in Plesk the 502 bad Gateway problem comes back.Is there an option to activate Nginx graceful restart in Plesk?
how is it possible that after an update my main site is down? This site: www.orderhosting.it has plesk Panel and I have 20 sites. They work perfectly but my main site is off. I think there is an error in the configuration because:
I recently needed to make some changes to the domain.conf file at the following path: /etc/nginx/plesk.conf.d/vhosts. When I try to edit the file it just has 3 lines at the top warning me that the changes made here would not persist, while other domain confs have full configs inside.
I am positive that the domain in question is set to use nginx, double checked this, so what gives? Why is the file blank?
Mar 31 14:56:52 hosting plesk sendmail: _mh_fork(): Error occured during waiting the child process with pid: 1178: No child processes Mar 31 14:56:52 hosting plesk sendmail: Error during 'check-quota' handler Mar 31 14:56:52 hosting plesk sendmail: Unable to get sender domain by sender mailname
We are looking for a solution to support multible IP's for different domains in one subscription/cusomer Account. Current, we have 4 IP's as shared. the Customer can choose under "Web Hosting Access" , which IP he wants to use.
This setting effect all domains in his Account. So it is not possible to set domain1.tld to e.g. IP 220.127.116.11 and domain2.tld e.g. to 18.104.22.168
We like to offer the cusomers one cusomer account with multible IP's
I'm trying to add multiple PHP version (current version installed: 5.5.13), using the official documentation. I always get 500 Internal Server Error after switching to the new version, with the following error_log content:
Code: [Sat Jun 07 00:49:35 2014] [warn] [client XXX.XXX.XXX.XXX] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server [Sat Jun 07 00:49:35 2014] [error] [client XXX.XXX.XXX.XXX] Premature end of script headers: index.php Here you can view phpinfo() obtained running php54-cgi index.php from the command line. Same script doesn't work as FastCGI.
I'm trying to add PHP 5.4.29. Here is how I compiled it:
Restarting sw-cp-server doesn't shows any error.However , I was getting some problems with mysql socket and I wasn't able to use the plesk still then currently a custom installation of phpmyadmin lets me access the databases but I can't access any of my websites either (Wordpress). Apache returns 504 Gateway Error .
I've been with my Strato VServer and it installed Plesk on Linux a big problem.
I coming no longer in the Plesk Dashboard and the following code appears:
Syntax error or access violation: 1286 Unknown table engine 'InnoDB'
Here are the contents of my my.cnf
# # The MySQL database server configuration file. # # You can copy this to one of: # - "/etc/mysql/my.cnf" to set global options, # - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports.