Install gadmin-proftpd-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install gadmin-proftpd-dbg
Description:
GTK+ configuration tool for proftpd debug package
gadmin-proftpd is a fast and easy to use GTK+ administration tool for the Proftpd standalone server. . This package contains the debugging symbols.
Homepage: http://www.gadmintools.org/
Version: 1:0.4.2-1build1
Section: universe/debug