Common Ports (2.1) Flashcards
What port does FTP (File Transfer Protocol) use?
tcp/20, tcp/21
What port does SSH (Secure Shell) use?
tcp/22
What port does (Telnet Telecommunication Network) Use?
tcp/23
What port does DNS (Domain Name System) use?
udp/53, tcp/53
What port does HTTP (Hypertext Transfer Protocol) use?
tcp/80
What port does HTTPS (Hypertext Transfer Protocol Secure) use?
tcp/443
What port does POP3 (Post office protocol Version 3) use?
tcp/110
What port does IMAP4 (Internet Message Access Protocol V4) use?
tcp/143
What port does RDP (Remote Desktop Protocol) use?
tcp/3389
What port does NetBIOS Name service use?
udp/137
What port does NetBIOS datagram service use?
udp/138
What port does NetBios session service use?
udp /139
What port does SMB (Server Message Block) use?
tcp/445
What port does AFP (Apple Filing Protocol) use?
tcp/548
What port does SLP (Service Location Protocol) use?
tcp/427, udp/427
What port does DHCP (Dynamic Host Configuration Protocol) use?
udp/67, udp/68
What port does LDAP (Lightweight Directory Access Protocol) use?
tcp/389
What port does SNMP (Simple Network Management Protocol) use?
udp/161
What is FTP?
File Transfer Protocol
FTP Sends and receives files between systems
What is SSH
Secure Shell
SSH is a software standard to support encrypted data transfer between two computers. It can be used to support secure logins, file transfers or general-purpose connects. Servers maintained by ITS require SSH-based connections in most cases. (Encrypted console access)
What is Telnet?
Telecommunication Network
Telnet enables a user to manage an account or device remotely. (Insecure console access)
What is SMTP?
Simple Mail Transfer Protocol
SMTP is part of the application layer of the TCP/IP protocol. Using a process called “store and forward,” SMTP moves your email on and across networks. It works closely with something called the Mail Transfer Agent (MTA) to send your communication to the right computer and email inbox.
What is DNS?
Domain Name System
Converts domain names to IP addresses (Its like a phone book)
What is HTTP & HTTPS?
Hypertext Transfer Protocol / Hypertext Transfer Protocol Secure
HTTPS is an extension of the HTTP. It is used for secure communication over a computer network and is widely used on the Internet.
What is POP3
Post Office Protocol Version 3
POP3 is an Internet standard protocol used by local email software clients to retrieve emails from a remote mail server over a TCP/IP connection.
What is IMAP4
Internet Message Access Protocol v4
IMAP enables a user’s email program to access the mail server
What is RDP?
Remote Desktop Protocol
RDP is a secure network communications protocol designed for remote management, as well as for remote access to virtual desktops
What is NetBIOS?
NetBIOS name service, NetBIOS datagram service, NetBIOS session service
NetBIOS is a non-routable OSI Session Layer 5 Protocol and a service that allows applications on computers to communicate with one another over a local area network (LAN).
What is SMB?
Server Message Block
SMB is a client-server communication protocol used for sharing access to files, printers, serial ports and other resources on a network.
What is AFP?
Apple Filing Protocol
AFP is a proprietary network protocol, and part of the Apple File Service, that offers file services for macOS and the classic Mac OS.
What is SLP?
Service Location Protocol
SLP is a service discovery protocol that allows computers and other devices to find services in a local area network without prior configuration.
What is DHCP?
Dynamic Host Configuration Protocol
DHCP is a protocol that provides quick, automatic, and central management for the distribution of IP addresses within a network.
What is LDAP?
Lightweight Directory Access Protocol
LDAP is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol network.
What is SNMP?
Simple Network Management Protocol
SMNP is a set of protocols for network management and monitoring. These protocols are supported by many typical network devices such as routers, hubs, bridges, switches, servers, workstations, printers, modem racks and other network components and devices.
