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Website/Webmail fails to be opened: ERR_CONNECTION_REFUSED

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Marc López
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Plesk for Linux kb: technical

Applicable to:

  • Plesk for Linux

Symptoms

  • Opening a website/webmail results in the following error:

    CONFIG_TEXT: ERR_CONNECTION_REFUSED

  • Proxy mode is enabled under Plesk > Domains > example.com > Apache & Nginx Settings.

  • In Plesk > Domains > example.com > Logs or in /var/www/vhosts/example.com/logs/proxy_error_log the following record can be found:

    CONFIG_TEXT: [error] 31160#0: *35 connect() failed (111: Connection refused) while connecting to upstream, client: 203.0.113.2, server: example.com, request: "GET /dev/ HTTP/1.1", upstream:

  • There are no processes listening on 80 or 443 port:

    # netstat -tunlp | grep -E ":80|:443"

Cause

Nginx service is not running.

Resolution

Note: To apply further instructions, it is required to have administrative access to Plesk. If you don't have Tools & Settings (Server settings) menu, please contact your server's administrator or hosting company support that can manage your server.

Start nginx service under Plesk > Tools & Settings > Services Management > Reverse Proxy Server (nginx):

Untitled.png

Note: in case nginx is missing, install it according to the article.

Alternatively, nginx can be started via the command-line interface:

  1. Connect to the server via SSH.

  2. Run the following command:

    # service nginx restart

Comments

4 comments

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  • Avatar
    Andre Freitas

    In my case, the nginx appears to be on.

     

    I restart nginx = nothing.

    I restart apache = nothing.

    I reboot server, all websites are back on.  

    Please help, as I have no clue.

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  • Avatar
    Ivan Postnikov

    Hello @Andre,

    As I can see, you have already submitted a ticket to us. 

    That is the best option for this case as deeper investigation is required.

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    absolutepast (Edited )

    Hi @Alexandr,

    Thanks so much for this.

    It seems that Nginx was disabled 'automatically' - ie: my server and sites were running fine, and then all of a sudden overnight, this issue occured. It was resolved by following your solution.

    Is there any reason that this issue could happen 'automatically' - ie: with no config changes done by me?

    Thanks

     

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  • Avatar
    Alexandr Redikultsev

    Hi @absolutepast,

    There is no way nginx can be stopped automatically without any failures. I would recommend checking journalctl logs for nginx and /var/log/nginx/error.log file for some error messages and configure automatic restart of ngixn on failure on a systemd level: https://www.freedesktop.org/software/systemd/man/systemd.service.html

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