TCP/80
HTTP
TCP/25
SMTP without authentication
TCP/443
HTTPS
TCP/23
Telnet
TCP/22
SSH
TCP/21
FTP - control
TCP/20
FTP - active mode data
UDP/53
DNS
TCP/110
POP3
TCP/143
IMAP4
TCP/3389
RDP (Remote Desktop Protocol)
UDP/137
NetBIOS name services (nbname)
UDP/138
NetBIOS datagram service (nbdatagram)
TCP/139
NetBIOS session service (nbsession)
TCP/445
SMB (Server Message Block)
TCP/548
AFP (Apple filing Protocol)
TCP/427 || UDP/427
SLP (Service Location Provider)
UDP/67 || UDP/68
DHCP (Dynamic Host Configuration Protocol)
TCP/389
LDAP (Lightweight Directory Access Protocol)
UDP/161
SNMP Queries
UDP/162
SNMP traps
TCP/587
SMTP with authentication
HTTP
TCP/80
SMTP without authentication
TCP/25