HTTPS (Hyper Text Transfer Protocol Secure)
Telnet
DNS (Domain Name System)
TACACS (Terminal Access Control Access Control System)
SSH, SFTP, SCP (Secure Shell, Secure File Transfer Protocol, Secure Copy)
Kerberos
DHCP (Dynamic Host Configuration Protocol)
FTP (File Transfer Protocol)
443
22
88
53
49
20, 21
67, 68
23