leafnode software package provides NNTP server for small sites, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install leafnode
leafnode is installed in your system.
Make ensure the leafnode package were installed using the commands given below,
$ sudo dpkg-query -l | grep leafnode *
You will get with leafnode package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | Newsgroups |
| Package | leafnode |
| Version | 1.11.10-3 |
| Description | NNTP server for small sites |
| Sub Section | News |