libapache2-mod-auth-kerb software package provides apache2 module for Kerberos authentication, 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 libapache2-mod-auth-kerb
libapache2-mod-auth-kerb is installed in your system.
Make ensure the libapache2-mod-auth-kerb package were installed using the commands given below,
$ sudo dpkg-query -l | grep libapache2-mod-auth-kerb *
You will get with libapache2-mod-auth-kerb package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Web Software |
| Package | libapache2-mod-auth-kerb |
| Version | 5.4-2.2 |
| Description | apache2 module for Kerberos authentication |
| Sub Section | web |