aolserver4-nsldap software package provides AOLServer 4 module for LDAP, 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 aolserver4-nsldap
aolserver4-nsldap is installed in your system.
Make ensure the aolserver4-nsldap package were installed using the commands given below,
$ sudo dpkg-query -l | grep aolserver4-nsldap *
You will get with aolserver4-nsldap package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | aolserver4-nsldap |
| Version | 0.8-4build1 |
| Description | AOLServer 4 module for LDAP |
| Sub Section | Net |