direwolf software package provides Soundcard TNC for APRS, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install direwolf
direwolf is installed in your system.
Make ensure the direwolf package were installed using the commands given below,
$ sudo dpkg-query -l | grep direwolf *
You will get with direwolf package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | Ham Radio |
| Package | direwolf |
| Version | 1.3-1 |
| Description | Soundcard TNC for APRS |
| Sub Section | Hamradio |