Ports And Protocols Flashcards
FTP
FTP
Ports 20, 21
Provides insecure file transfers
SSH
Secure Shell
Port 22
Provide secure remote control of another machine using text-based environment
SFTP
Secure file transfer protocol
Port 22
Provide secure file transfer using SSH
Telnet
Port 23
Insecure remote control to another machine using a text-based environment
No encryption, sent in the clear. Do not use
SMTP
Simple mail transfer protocol
Port 25
Provides ability to SEND emails over the network
DNS
Domain name system
Port 53
Converts IP addresses to domain names and vice versa
DHCP
Dynamic host control protocol
Port 67, 68
Automatically provides network parameters to your clients, such as their assigned IP address, subnet mask, default gateway, DNS server they should use
TFTP
Trivial file transfer protocol
Port 69
Used as a lightweight file transfer method for sending configuration files or network booting of an operating system
HTTP
Hypertext transfer protocol
Port 80
Used for insecure web browsing
POP3
Post office protocol version 3
Port 110
Used for RECEIVING incoming emails
NTP
Network time protocol
Port 123
Used to keep accurate time for clients on a network
NetBIOS
Network basic input/output system
Port 139
Used for file or printer sharing in a Windows network
IMAP
Internet mail application protocol
Port 143
Newer method of retrieving emails which improves upon the older POP3
Keeps message status synced across devices
SNMP
Simple network management protocol
Ports 161, 162
Used to collect data about network devices and monitor their status
LDAP
Lightweight directory access protocol
Port 389
Used to provide directory services to your network
HTTPS
Hypertext transfer protocol secure
Port 443
Secure web browsing using encrypted tunnel (TLS or SSL)
SMB
Server message block
Port 445
Used for Windows file and printer sharing services
Syslog
System logging
Port 514
Used to send logging data back to a centralized server
SMTP TLS
Port 587
Secure and encrypted way to send emails
LDAPS
LDAP secure
Port 636
Provide secure directory services
IMAP over SSL
Port 993
Secure and encrypted way to receive emails
POP3 over SSL
Port 995
Secure and encrypted way to receive emails
SQL
Structured query language
Port 1433
Used for communication from a client to the database engine
Oracle
Port 1521
Used for communication from a client to an Oracle database
MySQL
Port 3306
Used for communication from a client to the MySQL database engine
RDP
Remote desktop protocol
Port 3389
Provides graphical remote control of another client or server
SIP
Session initiation protocol
Ports 5060, 5061
Used to initiate VoIP and video calls
Port 5061
SIP
Port 5060
SIP
Port 3389
RDP
Port 3306
MySQL
Port 1521
Oracle
Port 1433
SQL
Port 995
POP3 over SSL
Port 993
IMAP over SSL
Port 636
LDAPS
Port 587
SMTP TLS
Port 514
Syslog
Port 445
SMB
Port 443
Https
Port 389
LDAP
Port 162
SNMP
Port 161
SNMP
Port 143
IMAP
Port 139
NetBIOS
Port 123
NTP
Port 110
POP3
Port 80
HTTP
Port 69
TFTP
Port 68
DHCP
Port 67
DHCP
Port 53
DNS
Port 25
SMTP
Port 23
Telnet
Port 22
SSH
Port 21
FTP
Port 20
FTP
Ports
Logical opening on a system representing a service or application that is listening and waiting for traffic
Numbered 0-65,535
Well-Known/Reserved Ports
0-1023
Ephemeral Ports
1024-65,535
Port 1812
RADIUS Authentication Messages
Port 1813
RADIUS Accounting Messages
RADIUS
Ports 1812, 1813
Authenticate users, authorize them to services, and account for their usage of those services
Port 49
TACACS+
TACACS+
Port 49
Used to perform the role of an authenticator in an 802.1x network
VNC
Port 5900
Remote access method
Port 5900
VNC
Metasploit
Commonly used exploit framework for penetration testing and red team operations. Metasploit can be used to easily run exploits on a machine and connect back to a meterpreter shell.
Default port is 4444
Port 4444
Metasploit
