Simple Package management with Synaptic Package Manager in Ubuntu. Synaptic is a graphical user interface (GUI) for managing software packages on Debian-based distributions. If you are using Debian or Ubuntu you will easily find Synaptic in the System Tools menu or in the Administration menu. Synaptic uses the GTK graphic libraries . So, if you are using GNOME on your debian-based distro you will probably have Synaptic installed as well. Synaptic is a graphical package management program for apt. It provides the same features as the apt-get command line utility with a GUI front-end based on Gtk+.
Now we will see how to add repositories,install,remove and update software packages Adding repositories Using Synaptic To Open Synaptic Package manager go to System--->Administration--->Synaptic package manager once it opens you should see the following screen asking for the password for root or equivalent users.To manage package installations you need administration privileges; so you need to either be root or to authenticate as such. Restricted Repositories. Debian (Ubuntu is based on Debian) Free Software Foundation. Make a Support Request to the Ubuntu Community.