Common Ports Flashcards
Learn them all
ARP
Address Resolution Protocol- Resolve IP address to MAC address
TCP
Transmission Control Protocol-Connection oriented network communication.
UDP
User Datagram Protocol- connection less network communication
SSH
Secure Shell tcp/22 Encrypted console communication and login.
DNS
Domain Name System tcp/53 Convert domain names to IP address
SMTP
Simple Main Transfer Protocol tcp/25 Transfer email between mail servers
SFTP
Secure File Transfer Protocol tcp/22 Secure file transfer. Read/write files. No authentication.
FTP
File Transfer Protocol tcp/20,21 Sends and receives files between systems. Typically UN/PW associated with this.
TFTP
Trivial File Transfer Protocol udp/69 A very simple file transfer application
Telnet
Telecommunication Network tcp/23 Remote console login to network devices.
DHCP
Dynamic Host Configuration Protocol udp/67,68 Automated IP addressing and configuration
HTTP
Hypertext Transfer Protocol tcp/80 Web server communication
HTTPS
Hypertext Transfer Protocol Secure tcp/443 Web server communication with encryption
SNMP
Simple Network Management Protocol udp/161 Gather statistics and manage network devices
RDP
Remote Desktop Protocol tcp/3389 Graphical display of a remote device