TCP/IP Service Summary

Table 8 helps you quickly identify the purpose and function of each of the TCP/IP services covered in the previous sections.

Table 8 Summary of TCP/IP Services
Service	Purpose/Function
DNS	Resolves hostnames to IP addresses.
NAT	Translates private network addresses into public network addresses.
ICS	Enables a single Internet connection to be shared among multiple systems on the network.
WINS	Resolves NetBIOS names to IP addresses.
SNMP	Provides network management facilities on TCP/IP-based networks.
NFS	Service that provides file sharing between server and client. Typically associated with UNIX and Linux operating systems, but versions are available for most commonly deployed operating systems.
Zeroconf	Provides a system by which devices can communicate with no network configuration or setup.
SMB	Application and presentation layer protocol that provides access to file and print services on server platforms that provide SMB access.
AFP	Provides remote file system access on Apple networks.
LPD	Printing service that provides both server and client printing functions.