ettercap-dbg software package provides Debug symbols for Ettercap, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ettercap-dbg
ettercap-dbg is installed in your system.
Make ensure the ettercap-dbg package were installed using the commands given below,
$ sudo dpkg-query -l | grep ettercap-dbg *
You will get with ettercap-dbg package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Debug packages |
| Package | ettercap-dbg |
| Version | 1:0.8.2-3 |
| Description | Debug symbols for Ettercap |
| Sub Section | debug |