Use Wireshark to capture and analyse packets

This one is probably aimed more at the geekier end of the market, but it is an application well worth covering.

There are many reasons why you might want to capture the raw network traffic that is entering and leaving your system. This can be for diagnostic purposes when something has gone wrong, finding out if there's a rogue program on your network, or if you're just curious ...

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GNOME Do

Peter told you about Katapult for KDE. It's a general purpose launcher made to launch applications by typing them.

To fuel the KDE vs. GNOME debate further comes GNOME Do. Just like Katapult, applications are launched simply by typing the name. A quick key press of Super+Space (Windows+Space) brings up the dialog, at which point anything can be typed in:

GNOME Do URL

You're not limited to simple actions ...

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Manslide - a slideshow generator for Linux

Manslide is Qt-based application for making slideshows out of a set of images on Linux.

You're unlikely to find it in any package manager right now, so you'll need to download the binary package, extract it and then run ./Manslide.

The first time you launch it, the introduction screen will be in French.

Manslide introduction screenshot

Fair enough, I suppose, and it is easy enough to switch it into your preferred ...

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