First 10 Flashcards
Memorize the first ten port numbers in messers course, and the protocols they access
what are the port Numbers for FTP (File Transfer Protocol)?
tcp/20, tcp21
What is the port number for SSH (Secure Shell)?
tcp/22
What is the port number for telnet?
tcp/23
What is the port number for SMTP (Simple Mail Transfer Protocol)?
tcp/25
What is the port number(s) for DNS?
udp/53, tcp/53
What are the port numbers for DHCP?
udp/67, udp68
What is the port number for HTTP?
tcp/80
What is the port number for HTTPS?
tcp/443
What is the port number for POP3 (Post Office Protocol)?
tcp/110
What is the port number for IMAP4 (Internet Access Message Protocol) ?
tcp/143
What is the 20, 21 ports used for?
Sending and receiving files between systems
What is port 22 used for?
Encrypted Console Access (Secure Shell)
What is port 23 used for?
Insecure Console Access (telnet)
What is port 25 used for?
Transfer emails between servers
What is port 53 used for?
Convert domain names to IP addresses (DNS)
What are ports 67 and 68 used for?
Automate IP address configuration
(DHCP)
What is port 110 used for?
Receive email into a email client
(POP3)
What is port 143 used for?
A newer email client protocol
(IMAP)
What is udp port 137 used for?
NetBIOS name service (register, remove, and find windows services by name)
What is tcp port 139 used for?
NetBIOS session service (Windows connection oriented data transfer)
what is tcp port 445 used for?
SMB (Windows file transfers and printer sharing)
What is udp port 161 used for?
SNMP Query (Gather metrics and manage network devices)
what is udp port 162 used for?
SNMP Trap (Receive alerts from network devices)
What is tcp port 389 used for?
LDAP (Directory services)
