On the Website -> Options tab for this particular site, the user and group appear as follows: Linux User web3 Linux Group client1 However, the value in the "PHP open_basedir" field reads Code: /var/www/clients/client0/web3/web:/var/www/clients/client0/web3/tmp [...] Shouldn't the client value be 1, and not 0 in that field? It seems that deleting the contents of this field and clicking "Save" forces the field to be populated with the values defined in System -> Server Config -> example.com -> Web [tab] -> PHP open_basedir. As such, I expected the issue to be corrected when I emptied the field and saved the record. However, the values continue to contain client0. The values for the relevant fields in the Server Configuration are: Website path: Code: /var/www/clients/client[client_id]/web[website_id] PHP open_basedir: Code: [website_path]/web:[website_path]/tmp:/var/www/[website_domain]/web:/srv/www/[website_domain]/web Any thoughts, anyone? Thanks in advance.