Ports Flashcards
What is FTP, its Port, and TCP or UDP?
File Transfer Protocol: This is used for file transfer, using passive FTP
Port: 21
TCP
What is Telnet, its Port, and TCP or UDP?
This is a protocol that was first used to run remote commands on devices, it is no longer used because it is insecure and was replaced by SSH
Port: 23
TCP
What is SMTP, its Port, and TCP or UDP?
Simple Mail Transfer Protocol: This is used to transfer files between different mail servers
Port: 25
TCP
What is DNS, its Port, and TCP or UDP?
Domain Name System: This is the system by which internet domain names and addresses are tracked and regulated.
Port 53
TCP/UDP
What is DHCP, its Port, and TCP or UDP?
Dynamic Host Configuration Protocol: This allocates IP addresses dynamically to computers
Port: 67/68
UDP
What is TFTP, its Port, and TCP or UDP?
Trivial File Transfer Protocol: This is file transfer using UDP, this is not secure as the files are transferred in cleartext
Port: 69
UDP
What is HTTP, its Port, and TCP or UDP?
Hypertext Transfer Protocol: This is used to access websites no matter which browser is being used
Port: 80
TCP
What is POP3, its Port, and TCP or UDP?
Post Office Protocol 3: Used to pull mail from a mail server, does not retain a copy on the mail server
Port: 110
TCP
What is NTP, its Port, and TCP or UDP?
Network Time Protocol: Used to sync the clock times across all devices
Port: 123
TCP
What is NETBIOS, its Port, and TCP or UDP?
NETBIOS to IP address resolution
Port: 137-139
UDP
What is IMAP 4, its Port, and TCP or UDP?
Internet Message Access Protocol 4: This is used to pull mail from a mail server
Port: 143
TCP
What is SNMP, its Port, and TCP or UDP?
Simple Network Management Protocol: This monitors the status of network devices and creates reports
Port: 161
UDP
What is LDAP, its Port, and TCP or UDP?
Lightweight Directory Access Protocol: Used to store X500 objects, searches directory services for users and groups, and other information
Port: 389
TCP
What is SSH, its Port, and TCP or UDP?
Secure Shell: Used for running secure remote access of a network device
Port: 22
TCP
What is SCP, its Port, and TCP or UDP?
Secure Copy Protocol: Used to transfer files securely between hosts in a Unix/Linux environment
Port: 22
TCP
What is SFTP, its Port, and TCP or UDP?
SSH File Transfer Protocol: This allows us to encrypt, authenticate, and download files securely so that they cannot be tampered with
Port: 22
TCP
What is DNSSEC, its Port, and TCP or UDP?
This is used to prevent someone from gaining access to the DNS records, secures DNS traffic
Port: 53
TCP/UDP
What is Kerberos, its Port, and TCP or UDP?
This is the authentication system used to log into directory services and uses tickets for authentication
Port: 88
TCP
What is SNMP v3, its Port, and TCP or UDP?
Simple Network Management Protocol Version 3: This securely monitors the status of network devices and creates reports
Port: 162
UDP
What is LDAPS, its Port, and TCP or UDP?
Lightweight Directory Access Protocol Secure: This manages directory service information securely
Port: 636
TCP
What is HTTPS, its Port, and TCP or UDP?
Hypertext Transfer Protocol Secure: This is used to securely access websites no matter which browser is being used
Port: 443
TCP
What is TLS, its Port, and TCP or UDP?
Transport Layer Security: This is used to secure data in transit, this is an upgraded version of SSL (Secure Socket Layer)
Port: 443
TCP
What is IPSec, its Port, and TCP or UDP?
Internet Protocol Security: This is used to secure a session for VPN or between 2 hosts
Port: 500
UDP
What is SMTPS, its Port, and TCP or UDP?
Secure Simple Mail Transfer Protocol: This is a secure version of SMTP as it uses TLS for encryption
Port: 587
TCP
What is IMAP4, its Port, and TCP or UDP?
Secure Internet Message Access Protocol: This is a secure version of IMAP 4
Port: 993
TCP
What is SPOP3, its Port, and TCP or UDP?
Secure Post Office Protocol 3: This is a legacy email client that does not leave copies of messages on the mail server
Port: 995
TCP
What is S/MIME, its Port, and TCP or UDP?
Secure/Multipurpose Internet Mail Extension: It’s used to encrypt or digitally sign email to prove the integrity of a message
Port: 993
TCP
What is FTPS, its Port, and TCP or UDP?
File Transfer Protocol Secure: This allows a user to download large files securely
Port: 989/990
What is RDP, its Port, and TCP or UDP?
Remote Desktop Protocol: This is a Microsoft product that allows you to have secure remote access
Port: 3389
TCP
What is SIP, its Port, and TCP or UDP?
Session Initiated Protocol: This connects internet-based calls
Port: 5060/61
TCP
What is SRTP, its Port, and TCP or UDP?
Secure Real-Time Protocol: This is used to secure video conferencing traffic
Port: 5061
TCP
