Citation :
User Login and Authentication A user network logon across a firewall uses the following: • Microsoft-DS traffic (445/tcp, 445/udp) • Kerberos authentication protocol (88/tcp, 88/udp) • Lightweight Directory Access Protocol (LDAP) ping (389/udp) • Domain Name System (DNS) (53/tcp, 53/udp) Computer Login and Authentication A computer logon to a domain controller uses the following: • Microsoft-DS traffic (445/tcp, 445/udp) • Kerberos authentication protocol (88/tcp, 88/udp) • LDAP ping (389/udp) • DNS (53/tcp, 53/udp)
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