libapache2-mod-nss software package provides NSS-based SSL module for Apache2, 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 libapache2-mod-nss
libapache2-mod-nss is installed in your system.
Make ensure the libapache2-mod-nss package were installed using the commands given below,
$ sudo dpkg-query -l | grep libapache2-mod-nss *
You will get with libapache2-mod-nss package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | Web Software |
| Package | libapache2-mod-nss |
| Version | 1.0.14-1 |
| Description | NSS-based SSL module for Apache2 |
| Sub Section | web |