Hello, we've installed the latest ISPConfig on Ubuntu 18.04 LTS as per the instructions here https://www.howtoforge.com/tutorial...l-pureftpd-bind-postfix-doveot-and-ispconfig/. When the firewall is turned on, the ftp connection does not work. I will connect, but do not listing the directories. I have to disable the firewall. Then everything works. Open TCP ports: 20,21,25,53,80,110,143,443,587,993,995,3306,8080,8081,10000,22468 Total Commander has set passive mode. Can anyone help?