Ports Flashcards
FTP
File Transfer Protocol
TCP 20 data / TCP 21 control
TFTP
Trivial File Transfer Protocol
UDP 69
SFTP
SSH File Transfer Protocol
TCP 22
SCP
Secure Copy
TCP 22
SSH
Secure Shell
TCP 22
Telnet
TCP 23
Not recommended anymore because it’s not encrypted use SSH because that has encryption
DNS
TCP UDP 53
Domain Naming Service
Resolves (Translates) domain names into IP addresses. It is easier for humans to remember a name Example (google.com) than it is to remember the full up address.
SMTP
Simple Mail Transfer Protocol
TCP 25
Transfers email between servers
Sending mail to people lol
HTTP
Hypertext Transfer Protocol
TCP 80
Web server communication
POP3
Post Office Protocol version 3
TCP 110
Receives mail into a mail client. Allows you to download email messages to your local PC even when offline.
Netbios
Name
Session
Data gram
137
139
138
Data gram and name are UDP
Session is tcp
A
IMAP
143 tcp
Newer mail protocol
TLS/SSL
Tcp 443
Secure protocols for web browsing
RDP
TCP/3389