davical software package provides PHP CalDAV and CardDAV Server, 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 davical
davical is installed in your system.
Make ensure the davical package were installed using the commands given below,
$ sudo dpkg-query -l | grep davical *
You will get with davical package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | Web Software |
| Package | davical |
| Version | 1.1.4-3 |
| Description | PHP CalDAV and CardDAV Server |
| Sub Section | web |