atheme-services software package provides modular IRC services daemon, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install atheme-services
atheme-services is installed in your system.
Make ensure the atheme-services package were installed using the commands given below,
$ sudo dpkg-query -l | grep atheme-services *
You will get with atheme-services package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | atheme-services |
| Version | 6.0.11-2+deb8u1build0.16.04.1 |
| Description | modular IRC services daemon |
| Sub Section | Net |