Common Ports, Protocols, Services Flashcards
TCP 20
FTP = File Transfer Protocol
data transfer port (command port is 21)
Other Secure alternatives to FTP:
SFTP/22 = FTP + SSH
SCP/22 - uses SSH
FTPS/990 = FTP + TLS
TCP 21
FTP = File Transfer Protocol command port (data transfer port is 20)
Other Secure alternatives to FTP:
SFTP/22 = FTP + SSH
SCP/22 - uses SSH
FTPS/990 = FTP + TLS
TCP 22
SSH - Secure Shell
SCP - Secure Copy
SFTP - Secure File Transfer Protocol
TCP 23
Telnet
Secure alternative: SSH
TCP 25
SMTP = Simple Mail Transfer Protocol
Secure alternative (encrypted): port 465
Email ports (name/unencrypted port/encrypted port)
SMTP/25/465
POP/110/995
IMAP/143/993
UDP 49
TACACS
Terminal Access Controller Access -Control System
TCP 49
TACACS+
Terminal Access Controller Access -Control System
UDP 53
DNS
Domain Name System
TCP 53
DNS OR DNSSec
Domain Name System (Secure)
UDP 69
TFTP
Trivial File Transfer Protocol
TCP 80
HTTP = Hypertext Transfer Protocol
Secure alternative: HTTPS/443
UDP/TCP 88
Kerberos
TCP 110
POP = Post Office Protocol
Secure alternative (encrypted): port 995
Email ports (name/unencrypted port/encrypted port)
SMTP/25/465
POP/110/995
IMAP/143/993
TCP/UDP 137 - 139
NetBIOS
TCP 143
IMAP = Internet Message Access Protocol
Secure alternative (encrypted): port 993
Email ports (name/unencrypted port/encrypted port)
SMTP/25/465
POP/110/995
IMAP/143/993