Plesk Server Ports
If you are planning to install APF or any other firewall on Plesk Linux server make sure you know which ports needed to be added in the IG_TCP settings. Basically APF is one recognized firewall which is goes well with Plesk Linux based servers. As we are not going to explain how to install APF firewall we shall just go through the plesk server ports which are the required for Plesk to function properly. #20 ftp-data ( FTP Data ) #21 [...]