Appendix E Services

Examples of Services (continued)

NAME

PROTOCOL

PORT(S)

DESCRIPTION

POP3

TCP

110

Post Office Protocol version 3 lets a client

 

 

 

computer get e-mail from a POP3 server

 

 

 

through a temporary connection (TCP/IP or

 

 

 

other).

 

 

 

 

POP3S

TCP

995

This is a more secure version of POP3 that

 

 

 

runs over SSL.

 

 

 

 

PPTP

TCP

1723

Point-to-Point Tunneling Protocol enables

 

 

 

secure transfer of data over public networks.

 

 

 

This is the control channel.

 

 

 

 

PPTP_TUNNEL

User-Defined

47

PPTP (Point-to-Point Tunneling Protocol)

(GRE)

 

 

enables secure transfer of data over public

 

 

networks. This is the data channel.

 

 

 

 

 

 

 

RMCD

TCP

512

Remote Command Service.

 

 

 

 

REAL_AUDIO

TCP

7070

A streaming audio service that enables real

 

 

 

time sound over web.

 

 

 

 

REXEC

TCP

514

Remote Execution Daemon.

 

 

 

 

RLOGIN

TCP

513

Remote Login.

 

 

 

 

ROADRUNNER

TCP/UDP

1026

This is the ISP that provides services mainly

 

 

 

for cable modems.

 

 

 

 

RTELNET

TCP

107

Remote Telnet.

 

 

 

 

RTSP

TCP/UDP

554

The Real Time Streaming (media control)

 

 

 

Protocol (RTSP) is a remote control for

 

 

 

multimedia on the Internet.

 

 

 

 

SFTP

TCP

115

The Simple File Transfer Protocol is an old

 

 

 

way of transferring files between computers.

 

 

 

 

SMTP

TCP

25

The Simple Mail Transfer Protocol is the

 

 

 

message-exchange standard for the

 

 

 

Internet. SMTP enables you to move

 

 

 

messages from one e-mail server to

 

 

 

another.

 

 

 

 

SMTPS

TCP

465

This is a more secure version of SMTP that

 

 

 

runs over SSL.

 

 

 

 

SNMP

TCP/UDP

161

Simple Network Management Program.

 

 

 

 

SNMP-TRAPS

TCP/UDP

162

Traps for use with the SNMP (RFC: 1215).

 

 

 

 

SQL-NET

TCP

1521

Structured Query Language is an interface

 

 

 

to access data on many different types of

 

 

 

database systems, including mainframes,

 

 

 

midrange systems, UNIX systems, and

 

 

 

network servers.

 

 

 

 

156

FSG1100HN User’s Guide

Page 156
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ZyXEL Communications wireless active fiber router manual 156, POP3 TCP

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