Error connection: cURL error 7

[linjunhe]

• FreeNas 11.3
• Nextcloud 21.0.1
• documentserver_community 0.1.9
• onlyoffice 6.3.0

I followed the instructions to install ONLYOFFICE in Nextcloud.

In the Nextcloud shell, I use occ app:install documentserver_community to install documentserver community, and use occ app:install onlyoffice to install ONLYOFFICE.

Then, I use the occ command occ onlyoffice:documentserver --check to check the connection to the document server. I get the following connection error:

It seems that this issue has been reported several times:

• TrueNas/FreeNas (exactly the same issue as mine): TrueNas-NextCloud problem. #187
• Docker: Error when trying to connect (cURL error 7) #165

For the Docker user, it seems that this issue can be workaround by deleting the setting "settings_error" with docker exec next-your-nextcloudorg_db_1 mysql nextcloud -p$MYSQL_ROOT_PASSWORD -e "delete from oc_appconfig where appid='onlyoffice' AND configkey='settings_error'" as reported here.

However, this issue still exists when TrueNas/FreeNas is used.