Sembiring R, Wetina Hulu, Lotar Mateus Sinaga. Implementation of Multi-Factor Authentication and One-Time Password for Debian Remote Server Administration. j. of artif. intell. and eng. appl. [Internet]. 2026 Jun. 29 [cited 2026 Jul. 6];5(3):4900-7. Available from: https://ioinformatic.org/index.php/JAIEA/article/view/2574