What is GnuPG (GPG) and how to configure it and encrypt/decrypt/sign data with it

Solution Verified - Updated -

Issue

  • What is gpg and how to use it?
  • What is gnupg2 and how to encrypt and decrypt the files using it?
  • How to configure GnuPG (GPG) in Red Hat Enterprise Linux

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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