Here's how you can install the PeerGuardian 2.2.1 firewall app in Ubuntu 13.04.
1. Open a terminal window.
2. Type in the following commands, then hit Enter after each:
sudo add-apt-repository ppa:jre-phoenix/ppa
sudo apt-get update
sudo apt-get install pgl
Additional Resources for PeerGuardian
Read more: Linux G
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