RHEL, CentOS 7 に移行しよう！ LTThis document discusses multi-factor authentication (MFA) and time-based one-time passwords (TOTP). It provides examples of using MFA with IIJ SmartKey and 1Password. It also explains TOTP algorithms and libraries like PyOTP and otp that can be used to generate and validate one-time passwords in Python and Golang programs.
https://eco.senritu.net/centos7_install_and_service_settings/
