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