To avoid storing my PIA authentication details on headless servers, I would like to use an alternative username and password, so my account details and not the same as my PIA login for OpenVPN connections. (i.e. key authentication).

Previously this was achievable using the x-username normally used for L2TP/PPTP/SOCKS with OpenVPN . As outlined here: https://www.privateinternetaccess.com/forum/discussion/29420/does-pia-support-key-authentication (https://www.privateinternetaccess.com/pages/client-support/generate-password)?

This no longer works, I was wondering if there were other means to use a different username/login for connection details, to avoid saving account login information in plain text.