Little Snitch is a software firewall that protects your computer against unwanted guests from the Internet. But who protects your private data from being sent out? Little Snitch does!
Little Snitch informs you whenever a program attempts to establish an outgoing Internet connection. You can then choose to allow or deny this connection, or define a rule how to handle similar, future connection attempts. This reliably prevents private data from being sent out without your knowledge. Little Snitch runs inconspicuously in the background and it can also detect network related activity of viruses, trojans and other malware.
WARNING: make sure you read all instructions before beginning installation, or it'll screw up, and I won't be able to help!
For those who already have little snitch
Run the installer, and select the uninstall option. This conveniently removes any previous registration information, BUT keeps your rules and settings intact! Once that's done follow the rules for people who never had little snitch installed.
If you've never had little snitch installed:
Run the installation
Once the computer restarts the app should launch on it's own (if it doesn't launch it from applications)
Important: make sure little snitch can't phone home (it tries to the bastard!):
Click the "new" green button in the little snitch configuration app that opened automatically (to make a new rule) set deny all connections and chose the following app
HD->Library->LittleSnitch->Little Snitch UIAgent.app
deny is all connections on all protocols and you should be safe
Obviously never update the software without proper research.
Once you've taken the precaution of not allowing little snitch to phone home, enter the serial:
How to enter the license key:
(1) Open the 'Little Snitch Configuration' application from your
(2) Choose 'Little Snitch Configuration' > Preferences and select
(3) Click the Register button to open the registration form.
(4) Enter the above license key into the form (Use Copy and Paste
to prevent typing errors).
(5) Click the OK button.
This is a must have app. If you have a mac download it!
I had a reasonable pm about this, and realized I forgot to mention that installation instructions only work with THIS dmg-file. If you get the little snitch disk image file from else where you will probably not be able to install this program.