NETWORK SECURITY OPTIMIZATION USING VLAN, FIREWALL, AND ACL AT PT. ANDALAN NIAGA EXPRESSINDO. Jurnal Pilar Nusa Mandiri, [S. l.], v. 22, n. 2, p. 183–193, 2026. DOI: 10.33480/pilar.v22i2.9023. Disponível em: https://ojs.nusamandiri.ac.id/index.php/pilar/article/view/9023. Acesso em: 8 nov. 2026.