Ch 5C Ports Flashcards
PORT 20
FTP - Data Connection
Make files available for download for download across a network (data connection port)
TCP
PORT 21
FTP - Control connection
Make files available for download across a network (control connection port)
TCP
PORT 22
SSH (Secure Shell)
Make a secure connection to the command-line interface of a server
TCP
PORT 23
Telnet
Make an unsecure connection to the command-line interface of a sever
TCP
PORT 25
SMTP (Simple Mail Transfer Protocol)
Transfer email messages across a network
TCP
PORT 53
DNS (Domain Name System)
Facilitate identification of hosts by name alongside IP addressing
TCP/UDP
PORT 67
DHCP (Dynamic Host Configuration Protocol) Server
Provision an IP configuration to clients
UDP
PORT 68
DHCP Client
Request a dynamic IP address configuration from a server
UDP
PORT 80
HTTP (HyperText Transfer Protocol)
Provision unsecure websites and web services
TCP
PORT 110
POP (Post Office Protocol)
Retrieve email messages from a server mailbox
TCP
PORT 137-139
NetBIOS over TCP/IP
Support networking features of legacy Windows versions
UDP/TCP
PORT 143
IMAP (Internet Mail Access Protocol)
Read and manage mail messages on a server mailbox
TCP
PORT 161
SNMP (Simple Network Management Protocol)
Query status information from network devices
UDP
PORT 162
SNMP trap operation
Report status information from network devices
UDP
PORT 389
LDAP (Lightweight Directory Access Protocol)
Query information about network users and resources
TCP