ports Flashcards
What does POP stand for? What is it?
Post Office Protocol
a protocol for receiving email by downloading it to your computer from a mailbox on the server of an internet service provider.
what port is used for POP3?
TCP 110
What does IMAP4 stand for?
Internet Message Access Protocol Version 4 (IMAP4)
What is IMAP used for?
Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection.
what port is used for IMAP?
TCP 143
What is Telnet?
Telnet is an application protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. User data is interspersed in-band with Telnet control information in an 8-bit byte oriented data connection over the Transmission Control Protocol (TCP).
what port is used for Telnet?
TCP 23
What does RDP stand for?
Remote Desktop Protocol
What port is used for RDP?
TCP 3389
What is port TCP 3389 used for?
RDP - Remote Desktop Protocol
What is the TCP 110 port used for?
POP3
What is port TCP 143 used for?
IMAP - Internet Message Access Protocol
What is port TCP 23 used for?
Telnet
What is SMB?
Server Message Block
Protocol used by Microsoft Windows.
File sharing, Printer Sharing.
Also called CIFS (Common Internet File System)
What port is reserved for SMB?
TCP 445
What is port TCP 445 reserved for?
SMB - Server Message Block
Protocol used by Microsoft Windows.
File sharing, Printer Sharing.
Also called CIFS (Common Internet File System)
What is AFP?
Apple Filing Protocol - File services in MacOS
File management - Copy, move, delete files etc.
Works in conjunction with SLP (Service Location Protocol).
what port is reserved for AFP?
TCP 548
What is the TCP 548 port reserved for?
Apple Filing Protocol - File services in MacOS
What is DHCP?
Dynamic Host Configuration Protocol.
Automated configuration of IP address, subnet mask and other options.
What port is reserved for DHCP?
The DHCP server uses UDP ports 67 and 68. The port number 68 is used for the DHCP client and 67 is used for the DHCP server.
what is the UDP 67 port reserved for?
DHCP - Dynamic Host Configuration Protocol
What is the UDP 68 port reserved for?
DHCP - Dynamic Host Configuration Protocol
Automated configuration of IP address, subnet mask and other options.
What is LDAP?
Lightweight Directory Access Protocol
Store and retrieve information in a network directory.
Commonly used in Microsoft Active Directory.
what port is reserved for LDAP?
TCP 389
what is the TCP 389 port reserved for?
LDAP - Lightweight Directory Access Protocol
Store and retrieve information in a network directory.
Commonly used in Microsoft Active Directory.
What is SNMP?
Simple Network Management Protocol
Gather statistics from network devices.
What port is reserved for SNMP?
UDP/161 - Queries
UDP/162 - Traps
what is the UDP 161 port reserved for?
SNMP - Simple Network Management Protocol
UDP/161 - Queries
UDP/162 - Traps
What is the UDP 162 port reserved for?
SNMP - Simple Network Management Protocol
UDP/161 - Queries
UDP/162 - Traps
What does SLP stand for?
Service Location Protocol
Populates the list of available devices.
Works in conjunction with AFP.
What port is reserved for SLP?
TCP/427 and UDP/427
what is FTP?
File transfer protocol - Transfers files between systems.
What port is reserved for FTP?
TCP/20 - Active mode data port.
TCP/21 - Control of communication.
what is the tcp 20 port reserved for?
FTP - File transfer protocol.
TCP/20 - Active mode data port.
What is the TCP 21 port reserved for?
FTP - File transfer protocol.
TCP/21 - Control of communication.
Transfers files between systems.
What is NetBIOS?
NetBIOS (/ˈnɛtbaɪɒs/) is an acronym for Network Basic Input/Output System. It provides services related to the session layer of the OSI model allowing applications on separate computers to communicate over a local area network.
What does TCP stand for?
Transmission Control Protocol (TCP)
What does UDP stand for?
User Datagram Protocol (UDP)
What is SMTP?
Simple Mail Transfer Protocol (SMTP)
used for email routing between mail servers
What is DNS?
Domain Name System
he Domain Name System (DNS) is the hierarchical and decentralized naming system used to identify computers, services, and other resources reachable through the Internet or other Internet Protocol (IP) networks. The resource records contained in the DNS associate domain names with other forms of information. These are most commonly used to map human-friendly domain names to the numerical IP addresses computers need to locate services and devices using the underlying network protocols, but have been extended over time to perform many other functions as well. The Domain Name System has been an essential component of the functionality of the Internet since 1985.
what port is reserved for DNS?
TCP 53
what is the TCP 53 port reserved for?
DNS - Domain Name System
what port is reserved for http?
TCP 80
what is the TCP 80 reserved for?
HTTP
what port is reserved for https?
TCP 443
what is the TCP 443 port reserved for?
https
what are ports 137-139 reserved for?
NetBIOs
what ports are reserved for NetBIOs?
TCP & UDP 137-139
