pluggable authentication module การใช้

• OTPW is supported in Unix and Linux ( via Pluggable authentication modules ), OpenBSD, NetBSD, and FreeBSD, and a generic open source implementation can be used to enable its use on other systems.
• S / KEY is supported in Linux ( via pluggable authentication modules ), OpenBSD, NetBSD, and FreeBSD, and a generic open-source implementation can be used to enable its use on other systems.