Possible data leak?

Hello all;

I recently reinstalled my server: Linux / debian stable
on it, nextcloud has been running for a long time, in docker mode.
However, I have installed since the reinstallation, shorewhall as a firewall to replace ufw.
Shorewhall is very good, but I have not opened the https ports. And since installing this firewall, including the update to “Nextcloud Hub 9 (30.0.5)” I have the following errors (this does not prevent Nextcloud from working or updating):

Erreur	internet_connection_check	
ConnectException cURL error 7: Failed to connect to www.edri.org port 80 after 0 ms: Could not connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for http://www.edri.org/
Cannot connect to: www.edri.org
18 janv. 2025, 10:10:10	
Erreur	internet_connection_check	
ConnectException cURL error 7: Failed to connect to www.eff.org port 80 after 0 ms: Could not connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for http://www.eff.org/
Cannot connect to: www.eff.org
18 janv. 2025, 10:10:10	
Erreur	internet_connection_check	
ConnectException cURL error 7: Failed to connect to www.startpage.com port 80 after 0 ms: Could not connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for http://www.startpage.com/
Cannot connect to: www.startpage.com
18 janv. 2025, 10:10:09	
Erreur	internet_connection_check	
ConnectException cURL error 7: Failed to connect to www.nextcloud.com port 80 after 0 ms: Could not connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for http://www.nextcloud.com/
Cannot connect to: www.nextcloud.com 

If I interpret correctly, nextcloud is trying to connect to port 80 of these sites.
Isn’t this a possible data leak?
Also, how can I modify these calls to use port 8080?

Thanks for your feedback.
R. Suinot.

Please fill out the support template you deleted while writing yor posting above.

Exactly the missing information about your system are needed to find hints.
Please add the web-server’s log dated 18 janv. 2025, 10:10:10

This is part of a connection check, so in your status page, it shows you if there is a problem with the internet connection.

You have to change it in the code. However, how do you know that these domains have a service running at port 8080?

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Or in the config.

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These are fully documented in the Admin Manual. See Connections to remote servers and Configuration Parameters: has_internet_connection & connectivity_check_domains.

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@tflidd @SysKeeper @jtr
Thanks everyone for your answers.
I didn’t think I could find this kind of settings in the configuration file.

Thanks again for your responsiveness.

R. Suinot

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