Fail to connect

Hello!
Trying to install.
Got this message on the System check page :
Warning: file_get_contents( /auth/joomdle/connection_test.php): Failed to open stream: Connection timed out in /administrator/components/com_joomdle/helpers/content.php on line 532

Warning: file_get_contents( /auth/joomdle/connection_test_joomla.php): Failed to open stream: Connection timed out in /administrator/components/com_joomdle/helpers/content.php on line 532

Warning: file_put_contents(/joomdle_system_check.json): Failed to open stream: Permission denied in /administrator/components/com_joomdle/helpers/content.php on line 487


Joomla cannot connect to Moodle, Moodle cannot connect to Joomla, Received empty response from Moodle.
Frist two check are green.

Joomla = 4.4.3
Moodle = 3.11.2

file_get_contents
REST
both tokens are correct

What could be wrong?

Hi.

Are you using Sucuri, Clodflare or any other security software/service?

> Warning: file_put_contents(/joomdle_system_check.json): Failed to open stream: Permission denied in /administrator/components/com_joomdle/helpers/content.php on line 487

That indicates some permission issue, as the system is not able to write to the log file.

Found Fail2Ban Intrusion Detector, can it be a problem?
apart from that Linux IPTables (firewall) only

If you try to open yourmoodlesite/auth/joomdle/connection_test.php what do you get?

i get "OK"

Do you have SSH access to your Joomla server? If you have, you can try to get the same URL with wget:

$ wget yourmoodlesite/auth/joomdle/connection_test.php

That way you can test if opening the page from the server is working, and if it is not, maybe get some more info.

it seems there is a problem with the server, it'll take time to solve it, so thank you for your help!