
Appendix E Services
FSG1100HN User’s Guide
Examples of Services (continued)
TCP
21
File Transfer Program, a program to enable
fast transfer of files, including large files that
may not be possible by e-mail.
NetMeeting uses this protocol.
Hyper Text Transfer Protocol – a
client/server protocol for the World Wide
Web.
HTTPS is a secured HTTP session often
used in e-commerce.
Internet Control Message Protocol is often
used for diagnostic purposes.
This is a popular Internet chat program.
(MULTICAST)
Internet Group Multicast Protocol is used
when sending packets to a specific group of
hosts.
The Internet Key Exchange algorithm is
used for key distribution and management.
The Internet Message Access Protocol is
used for e-mail.
This is a more secure version of IMAP4 that
runs over SSL.
This is another popular Internet chat
program.
Microsoft Networks’ messenger service uses
this protocol.
TCP/UDP
TCP/UDP
TCP/UDP
138
139
445
The Network Basic Input/Output System is
used for communication between computers
on a LAN.
An Internet chat program.
A protocol for news groups.
Network File System – NFS is a client/server
distributed file service that provides
transparent file sharing for network
environments.
Network News Transport Protocol is the
delivery mechanism for the USENET
newsgroup service.
Packet Internet Groper is a protocol that
sends out ICMP echo requests to test
whether or not a remote host is reachable.
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