proftpd-mod-dnsbl software package provides ProFTPD module mod_dnsbl, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install proftpd-mod-dnsbl
proftpd-mod-dnsbl is installed in your system.
Make ensure the proftpd-mod-dnsbl package were installed using the commands given below,
$ sudo dpkg-query -l | grep proftpd-mod-dnsbl *
You will get with proftpd-mod-dnsbl package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | proftpd-mod-dnsbl |
| Version | 0.1.5-3ubuntu1 |
| Description | ProFTPD module mod_dnsbl |
| Sub Section | Net |