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Articles - Étudiants SUPINFO

Little Snitch 4 (EN)

Par Julien GROSSIN Publié le 06/12/2017 à 09:08:31 Noter cet article:
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Introduction

When the computer is connected to Internet, the installed applications will communicate with outside, to exchange information in an invisible way. The user will not be able to verify the data passing through his network.

These exchanges can be made for the proper functioning of the application, but can sometimes bring malicious software.

That's why it is very important to have an operational firewall that filters the transfers from outside

Little Snitch is part of this software, it will make visible the incoming and outgoing connections and let the user regain control of them.

How does Little Snitch work?

The software will communicate with the user in various ways.

The first is to display a pop-up window when an application tries to connect to the Internet.

In this case, the user will have the choice to allow the connection or not. This choice can be ephemeral or memorize for all future attempts.

The second option is to use the silent mode.

This option gives the user the choice to stop pop-up notifications for a moment and decide later what will become the rule.

How to examine the network?

Little Snitch incorporates a window that allow to view the latest activities.

It contains the softwares that communicates with the Internet, the connection servers and the network throughput that they use for their communications.

The strategy for the first utilization

The recommended strategy for new users is to launch Little Snitch in silent mode for a few days, this allows the user to continue his tasks without being interrupted repetitively.

Then it will be possible to discover all the connections that have caused a connection alert.

They are found in the Network Monitor with a blue button, with the Allow/deny options.

It will be easy then to create rules that match for each of the applications.

What's new in Little Snitch 4:

In the new version, the Network Monitor is fully redesigned.

It now integrates a world map to view network connections according to their geographical location. It provides powerful filtering and selection options for evaluating specific connections based on the location of the server.

The interface is modernized, in relation with the design of the new Apple operating system.

The research Assistant has undergone improvements and is now also accessible from the Network Monitor.

The creation and modification of the rules is now done with a simple click from the Network Monitor.

The connection alert can be minimized to defer the decision to allow or deny a connection.

There are many other improvements to be noted especially at the different filters.

Bibliography

https://www.obdev.at/products/littlesnitch/index.html

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