Ports and Protocols Flashcards
DHCP
Dynamic Host Configuration Protocol: dynamically assigns IP address information (IP address, subnet mask, DNS servers IP address, default gateways IP address) to a networked device
UDP Port: 67, 68
DNS
Domain Name System: resolves domain names to corresponding IP addresses
TCP Port: 53
UDP Port: 53
FTP
File Transfer Protocol: transfers files with a remote host (typically requires authentication of user credentials)
TCP Port: 20, 21
H.323
signaling protocol that provides multimedia communications over a network
TCP Port: 1720
HTTP
Hyper Text Transfer Protocol: retrieves content from a web server
TCP Port: 80
HTTPS
Hypertext Transfer Protocol Secure: used to securely retrieve content from a web server
TCP Port: 443
IMAP
Internet Message Access Protocol: retrieves email from an email server
TCP Port: 143
IMAP4
Internet Message Access Protocol v4: retrieves email from an email server
TCP Port: 143
LDAP
Lightweight Directory Access Protocol: provides directory services to network clients (ex: a user directory that includes username, password, email and phone information)
TCP Port: 389
LDAPS
Lightweight Directory Access Protocol over SSH: secured version of LDAP
TCP Port: 636
MGCP
Media Gateway Control Protocol: used as a call control and communication protocol for VoIP
UDP Port: 2427, 2727
NetBIOS
Network Basic Input/Output System: provides network communications services for LANs that use NetBIOS
TCP Port: 139
UDP Port: 137, 138
NNTP
Network News Transport Protocol: support the posting and reading of articles on Usenet new servers
TCP Port: 119
NTP
Network Time Protocol: Used by a network device to synchronizeits clock with a time server (NTP server)
UDP Port: 123
POP3
Post Office Protocol v3: retrieves email from an email server
TCP Port: 110
RDP
Remote Desktop Protocol: microsoft protocol that allows a user to view and control the desktop of a remote computer
TCP Port: 3389
RSH
Remote Shell: allows commands to be executed on a computer from a remote user
TCP Port: 514
RTP
Real Time Transport Protocol: used for delivering media based data through the network (such as VoIP)
TCP Port: 5004, 5005
UDP Port: 5004,5005
RTSP
Real Time Streaming Protocol: communicates with a media server and controls the playback of the servers media files (video server)
TCP Port: 554
UDP Port: 554
SCP
Secure Copy: provides a secure file transfer service over an SSH connection and offers a files original fate and time information, which is not available with FTP
TCP Port: 22
SFTP
Secure FTP: provides FTP file transfer service over and SSH connection
TCP Port: 22
SIP
Session Initiation Protocol: used to create and end sessions for one or more media connections, including VoIP
TCP Port: 5061
UDP Port: 5060
SMB
Server Message Block: used to share files, printers, and other network resources
TCP Port: 445
SMTP
Simple Mail Transfer Protocol: used for sending email
TCP Port: 25
SNMP
Simple Network Management Protocol: used to monitor and manage network devices
UDP Port: 161
SNMP Trap
Simple Network Management Protocol Trap: notification sent from an SNMP agent to an SNMP manager
TCP Port: 162
UDP Port: 162
SNTP
Simple Network Time Protocol: supports time synchronizatioin among network devices, similar to Network Time Protocol NTP, although SNTP uses a less complex algorithm in its calculation and is slightly less accurate
UDP Port: 128
SSH
Secure Shell: used to securely connect to a remote host (typically via a terminal emulator)
TCP Port: 22
Telnet
used to connect to a remote host (typically via terminal emulator)
TCP Port: 23
TFTP
Trivial File Transfer Protocol: transfers files with a remote host (doesnt require authentication of user credentials)
UDP Port: 69
