Chapter 2: Networking Flashcards
Explaination and Port Number(s)
FTP
File Transfer Protocol (FTP)
* Permits the transferring of files between computer systems
* Can be configured to allow or deny access to specific IP addresses and to work with exceptions
* FTP is not secure, but can be encrypted with SSH (SFTP) or SSL (FTPS)
* Uses Ports: 20 & 21
Explaination and Port Number(s)
SSH
Secure Shell (SSH)
* A remote administration tool that provides an encrypted comman-line session for accessing, managing and configuring devices like routers and switches
* Uses Port: 22
Explaination and Port Number(s)
Telnet
Telnet
* An application-layer protocol that provides terminal-emulation capabilities
* Sends data (including passwords) in plain-text format
* Uses Port: 23
Explaination and Port Number(s)
SMTP
Simple Mail Transfer Protocol (SMTP)
* Used for sending mail between SMTP servers
* Uses Port: 25
Explaination and Port Number(s)
DNS
Domain Name System (DNS)
* Translates hostnames into IP addresses
* Uses both UDP and TCP
* Uses Port: 53
Explaination and Port Number(s)
DHCP
Dynamic Host Configuration Protocol (DHCP)
* Issues IP addresses and other network-related configuration values to clients to allow them to operate on the network
* Uses Ports: 67 & 68
Explaination and Port Number(s)
HTTP
Hypertext Transfer Protocol (HTTP)
* Used for communication between a web server and a web browser
* Uses Port: 80
Explaination and Port Number(s)
POP/POP3
Post Office Protocol (POP) 3 (POP3)
* A protocol for receiving email from a server
* An alternative to IMAP
* Uses Port: 110
Explaination and Port Number(s)
NetBIOS & NetBT
Network Basic Input/Output System (NetBIOS) &
NetBIOS over TCP/IP (NetBT)
* An early networking protocol that used a flat namespace, unlike the hierarchal one found in DNS
* Computers register their services with the other devices and locate one another using NetBIOS names
* Uses Ports: 137 & 139
Explaination and Port Number(s)
IMAP
Internet Mail Access Protocol (IMAP)
* A protocol with a store-and-forward capability
* Can also allow messages to be stored on an email server instead of downloaded to the client
* An alternative to POP3
* Uses Port: 143
Explaination and Port Number(s)
SNMP
Simple Network Management Protocol (SNMP)
* Facilitates network management functionality
* Is not, in itself, a network management system (NMS), but simply the protocol that makes NMS possible
* Uses Ports: 161 & 162
Explaination and Port Number(s)
LDAP
Lightweight Directory Access Protocol (LDAP)
* Provides a mechanism to access and query directory services systems such as Active Directory and Novell Directory Services
* Can be accessed via command line, authentication program or search engine
* Uses Port: 389
Explaination and Port Number(s)
HTTPS
Hypertext Transfer Protocol Secure (HTTPS)
* HTTP over Secure Sockets Layer (SSL) used to make a secure connection
* Uses Port: 443
Explaination and Port Number(s)
SMB & CIFS
Server Message Block (SMB)
* An application-layer protocol used to provide shared access to resources
* Common Internet File System (CIFS) is a dialect of SMB
* Primarily used in Windows systems
* Operates as a client-server application
* Uses Port: 445
Explaination and Port Number(s)
RDP
Remote Desktop Protocol (RDP)
* Used in a Windows environment to make remote desktop communications possible
* Presents the user with the graphical interface of the remote device rather than a command line as in Telnet or SSH
* Uses Port: 3389
