Prepare your GNU/Linux system for the cp4j

To install software under GNU/Linux systems is fairly straightforward but it depends highly on the distribution you use.

With this approach, you 'll install or update the following software at once:

• GnuPG - The Gnu Privacy Guard - A free tool for secure communication and data storage.
• GnuPG2 - Another free GnuPG version.
• GPA - The GNU Privacy Assistent - A free graphical program for key management.
• pidgin - A free multi-platform chat-client.
• pidgin-otr - A free plugin, that keeps your chats private.
• keepass - A free program for secure password management.
• Thunderbird or Icedove - A free e-mail client, that allows to encrypt and decrypt e-mail easily.
• Enigmail - A free plugin, that enables Thunderbird or Icedove to encrypt, decrypt, sign and verify e-mails, almost automagically.

If the software already exists on your system, it simply updates or doesn't get installed. Existing important files like private keys or public keys won't get overwritten.

On distributions like Ubuntu, Kubuntu, xUbuntu or Mint, do the following:

1. Open a terminal window
   • You can do this by pressing CTRL+ALT+T on your keyboard simultaneously, or
   • by clicking: Applications > Accessories > Terminal
2. Type:

   sudo apt-get update

3. It will ask for your password. Type it in and press ENTER to continue.
4. Now type:

   sudo apt-get install gnupg gnupg2 gpa keepass2 pidgin pidgin-otr thunderbird enigmail

5. Press y to continue. Let the machine do the installing.
6. Type:

   exit

Congratulations.