Ports and Protocols Flashcards
Port 20/21
Name - File Transfer Protocol 20 Data / 21 Control
Transport Mechanism - TCP
Usage - Transfer files from host to host
Port 22
Name - Secure Shell
Transport Mechanism - TCP or UDP
Usage - Remotely administers network devices and Unix/Linux Systems. Also used by Secure Copy Protocol (SCP), Secure FTP (SFTP), which both use TCP as transport mechanism.
Port 23
Name - Terminal Network or TELNET
Transport Mechanism - TCP or UDP
Usage - Remotely administers network devices
Port 7
Name - Echo or ICMP
Transport Mechanism - TCP or UDP
Usage - Pinging or Testing round-trip times between hosts
Port 25
Name - SMTP or Simple Mail Transfer Protocol
Transport Mechanism- TCP
Usage - Sends e- mail
Port 49
Name - TACACS+ or Terminal Access Controller Access - Control System Plus
Transport Mechanism - TCP
Usage - Remote Authentication.
Port 53
Name - DNS or Domain Name System
Transport Mechanism- TCP or UDP
Usage - Resolves hostnames to IP addresses and vice-versa
Port 69
Name - TFTP or Trivial File Transfer Protocol
Transport Mechanism - UDP
Usage - Basic Version of FTP
Port 80
Name - HTTP or Hyper Text Transfer Protocol
Transport Mechanism- TCP
Usage - Transmits web page data.
Port 88
Name - Kerberos
Transport Mechanism - TCP or UDP
Usage - Network Authentication, uses tickets
Port 110
Name - POP3 or Post Office Protocol Version 3
Transport Mechanism - TCP
Usage - Receives e-mail
Port 119
Name - NNTP or Network News Transfer Protocol
Transport Mechanism - TCP
Usage - Transports Usenet Articles
Port 137 - 139
Name - NetBIOS
Transport Mechanism- TCP/UDP
Usage - Name querying sending data, NetBIOS connections
Port 143
Name - IMAP or Internet Message Access Protocol
Transport Mechanism- TCP
Usage - Retrieval of email, with advantages over POP3
Port 161
Name - SNMP or Simple Network Management Protocol
Transport Mechanism- UDP
Usage - Remotely monitor network devices