Well-known services list
In addition to the ports used by services described above, WatchGuard maintains a
list of well-known services. Because software developers regularly add new services,
this does not represent a comprehensive list of all possible services. For more
information, see J. Reynolds and J. Postel, Assigned Numbers, RFC1700, available at
these Web sites:
http://www.cis.ohio-state.edu/htbin/rfc/rfc1700.html
ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers
If you would like to send us additions to this list, please send them to
manual@watchguard.com
Service Name
tcpmux
compressnet
rje
echo
discard
systat
daytime
qotd
msp
chargen
ftp-data
ftp
ssh
telnet
smtp
nsw-fe
msg-icp
Reference Guide
Port #
Protocol
102
TCP
110
TCP
995
TCP
135
TCP
25
TCP
119
TCP
563
TCP
.
Port #
Protocol
1
TCP/UDP
2,3
TCP/UDP
5
TCP/UDP
7
TCP/UDP
9
TCP/UDP
11
TCP/UDP
13
TCP/UDP
17
TCP/UDP
18
TCP/UDP
19
TCP/UDP
20
TCP/UDP
21
TCP/UDP
22
TCP/UDP
23
TCP/UDP
25
TCP/UDP
27
TCP/UDP
29
TCP/UDP
Purpose
MTA - X.400 over TCP/IP
POP3
POP3 (SSL)
RCP
SMTP
NNTP
NNTP (SSL)
Description
TCP Port Service Multiplexer
Management Utility
Remote Job Entry
Echo
Discard
Active Users
Daytime
Quote of the Day
Message Send Protocol
Character Generator
File Transfer [Default Data]
File Transfer [Control]
SSH Remote Login Protocol
Telnet
Simple Mail Transfer
NSW User system FE
MSG ICP
Well-known services list
21