When trying to add the feed URL of a Database activity module to the RSS feeds within Moodle (i.e. to a Remote news feed block), I get this error:
Error loading this RSS feed (cURL Error: couldn't connect to host)
The feed URL I am trying to add is:
Inputting this directly into Firefox or Safari works fine. Other feeds added to Moodle (e.g. BBC feeds) work as expected.