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http://www.debianadmin.com/simple-package-management-with-synaptic-package-manager-in-ubuntu.html

Synaptic is a graphical user interface (GUI) for managing software packages on Debian-based distributions.

Simple Package management with Synaptic Package Manager in Ubuntu

Debian (Ubuntu is based on Debian)

Free Software Foundation

Make a Support Request to the Ubuntu Community

Ubuntu Wiki (community-edited website)