Is two-factor authentication supported in OpenSSH?

Solution Unverified - Updated -

Issue

  • Does Red Hat Enterprise Linux support two-factor authentication?
  • Do you have additional informations about this feature from the RHEL6.3 release notes: "Availability of a two-factor authentication mechanism, enhancing the overall security available to lock down Red Hat Enterprise Linux environments and enabling compliance with industry standards such as PCI-DSS."

Environment

  • OpenSSH Server >= 5.3p1-83
  • Red Hat Enterprise Linux (RHEL) 6

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