Appendix B

Ports Associated with Internet Services


Port numbers of various well-known Internet services are listed in Table B.1. These ports are defined in RFC 1060. Please refer to RFC 1060, by visiting the following URL, for a comprehensive listing and discussion of various ports defined in RFC 1060.

URL
RFC 1060 defines TCP/IP ports of well-known Internet services.
http://www.pmg.lcs.mit.edu/cgi-bin/rfc/view?number=1060

Table B.1. Well-known Internet services' port numbers.

Port Number
Service Name Description
5
RJE Remote Job Entry
7
ECHO Echo
9
DISCARD Discard
11
USERS Active Users
13
DAYTIME Daytime
17
QUOTE Quote of the Day
19
CHARGEN Character Generator
20
FTP-DATA File Transfer [Default Data]
21
FTP File Transfer [Control]
23
TELNET Telnet
25
SMTP Simple Mail Transfer Protocol
37
TIME Time
42
NAMESERVER Host Name Server
43
NICNAME Who Is
49
LOGIN Login Host Protocol
53
DOMAIN Domain Name Server
67
BOOTPS Bootstrap Protocol Server
68
BOOTPC Bootstrap Protocol Client
69
TFTP Trivial File Transfer
79
FINGER Finger
93
DCP Device Control Protocol
101
HOSTNAME NIC Host Name Server
107
RTELNET Remote Telnet Service
109
POP2 Post Office Protocol - Version 2
110
POP3 Post Office Protocol - Version 3
113
AUTH Authentication Service
115
SFTP Simple File Transfer Protocol
119
NNTP Network News Transfer Protocol
123
NTP Network Time Protocol
129
PWDGEN Password Generator Protocol
130
CISCO-FNA CISCO FNATIVE
135
LOC-SRV Location Service
136
PROFILE PROFILE Naming System
137
NETBIOS-NS NETBIOS Name Service
138
NETBIOS-DGM NETBIOS Datagram Service
139
NETBIOS-SSN NETBIOS Session Service
144
NEWS NewS
150
SQL-NET SQL-NET
152
BFTP Background File Transfer Program
153
SGMP SGMP
156
SQLSRV SQL Service
161
SNMP SNMP
162
SNMPTRAP SNMPTRAP
192
OSU-NMS OSU Network Monitoring System
194
IRC Internet Relay Chat Protocol
197
DLS Directory Location Service
1198
DLS-Mon Directory Location Service Monitor