Hi Grant,
Since it’s deployed on VPS, I have no issue with firewall and I can’t add to my tutorial if I don’t experience myself. Perhaps on your case is due to the host firewall. Is it on windows? So sorry I have no clue running Native Linux on Virtual Box or VMWare. My old laptop runs on Centos 7 with GUI and has no issue with firewall.
I also have no clue on this “/opt/lampp/lampp start on reboot”. So sorry, Grant.
Sincerely,
Ariv Ontowiryo
