aaPanel_Jose hoanganhmb1 Please check whether 21, 39000-40000 have been released in the security group
mail47002 Hello 39000-40000 have been released in the security group Please, explain how to check ubuntu?
aaPanel_Kern _DavidC Hello, please check whether the system firewall and the firewall of the server provider open ports 21, 39000-40000, firewall-cmd --list-all The external network can use this website to check https://dnschecker.org/port-scanner.php
