autofs-ldap software package provides LDAP map support for autofs, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install autofs-ldap
autofs-ldap is installed in your system.
Make ensure the autofs-ldap package were installed using the commands given below,
$ sudo dpkg-query -l | grep autofs-ldap *
You will get with autofs-ldap package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | autofs-ldap |
| Version | 5.1.1-1 |
| Description | LDAP map support for autofs |
| Sub Section | Utils |