File Transfer Protocol
Sends and receives files between systems
Encrypted console access
Insecure console access
Simple Mail Transfer Protocol
Transfer email between mail services
Domain Name System
Convert domain names to IP addresses
Hypertext Transfer Protocol
Web server communicaCon
Post Office Protocol
Web server communication with encryption
Internet Message Access Protocol
Includes management of email inbox from multiple clients;
Newer email client protocol
Hypertext Transfer Protocol Secure
Web server communication with encryption.
Remote Desktop Protocol
Share a desktop from a remote location
Network Basic Input/Output System
- Register, remove, and find windows services by name (137)
- Windows connectionless data transfer (138)
- Windows connection-oriented data transfer(139)
Server Message Block
Windows file transfer and printer sharing
Common Internet File System
CIFS is a network file service protocol developed by Microsoft. It is used in conjunction with TCP/IP to facilitate file sharing across multiple platforms for a large number of simultaneous users.
Service Location Protocol
Find Mac OS services by name
Apple Filing Protocol
Mac Os File transfers
In macOS, AFP is one of several file services supported, with others including Server Message Block (SMB), Network File System (NFS), File Transfer Protocol (FTP), and WebDAV.
67 & 68
Dynamic Host Configuration Protocol
DHCP is a protocol used to assign an IP address to a computer or device connected to a network automatically.
- If the network has a firewall, ports 67 and 68 need to be open for devices to function properly.
Lightweight Directory Access Protocol
LDAP is an Internet protocol that runs over TCP.
Most e-mail clients today and in the future contain this protocol or OpenLDAP.
Simple Network Management Protocol
Gather statistics from network devices
User Datagram Protocol
UDP is an alternative protocol to the TCP/IP that runs on top of IP and is sometimes referred to as UDP/IP.
Unlike TCP/IP, UDP does not divide each transmission into packets, which allows for a faster transmission. However, UDP does not provide error checking.