Appendix D Common Services

 

Table 238 Commonly Used Services (continued)

 

 

 

 

 

 

 

NAME

PROTOCOL

PORT(S)

DESCRIPTION

 

 

 

 

 

 

NNTP

TCP

119

Network News Transport Protocol is the

 

 

 

 

delivery mechanism for the USENET

 

 

 

 

newsgroup service.

 

PING

User-Defined

1

Packet INternet Groper is a protocol that

 

 

 

 

sends out ICMP echo requests to test

 

 

 

 

whether or not a remote host is reachable.

 

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).

 

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.

 

RCMD

TCP

512

Remote Command Service.

 

 

 

 

 

 

REAL_AUDIO

TCP

7070

A streaming audio service that enables real

 

 

 

 

time sound over the web.

 

REXEC

TCP

514

Remote Execution Daemon.

 

 

 

 

 

 

RLOGIN

TCP

513

Remote Login.

 

 

 

 

 

 

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

Simple File Transfer Protocol.

 

 

 

 

 

 

SMTP

TCP

25

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.

 

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.

 

SSH

TCP/UDP

22

Secure Shell Remote Login Program.

 

 

 

 

 

 

STRM WORKS

UDP

1558

Stream Works Protocol.

 

 

 

 

 

 

SYSLOG

UDP

514

Syslog allows you to send system logs to a

 

 

 

 

UNIX server.

 

TACACS

UDP

49

Login Host Protocol used for (Terminal

 

 

 

 

Access Controller Access Control System).

 

655

ZyWALL 2 Plus User’s Guide