Issue Connection failed" despite restarting Apache and Nginx

[Cristian.l]

Server operating system version

Ubuntu 22.04

Plesk version and microupdate number

18.0.65

Hi everyone,
I am experiencing a problem with a site hosted on a temporary domain provided by Plesk Charmed - Notti di luna blu.


The problem occurs like this:

1. Sometimes the site works properly for a few minutes.
2. Afterwards, I get an error in the browser: “Connection failed. An error occurred while connecting.”
3. The problem seems temporary, but I can't figure out what triggers it.

Here are the details of the operations I have already performed:


I restarted the Apache and Nginx services using the commands:

• sudo service apache2 restart
• sudo service nginx restart

Both services appear to be active (running) after the restart.

I checked the permissions of the httpdocs folder and they seem correct (755 for directories, 644 for files).
The domain is configured as a temporary domain and I am using the default settings.

Despite these operations, the problem persists. I found no obvious errors in the Apache or Nginx logs, but I can provide more details if needed.


Does anyone have any idea what might be causing this intermittent behavior?


Thank you very much for your support!

 

[AYamshanov]

Does anyone have any idea what might be causing this intermittent behavior?

Ideas on what to check

• When the web server is unavailable, what about other services like SSH? Could it be some network connectivity issue?
• Server and website logs,
• Monitoring graphs