Well-Known Services List
28
WatchGuard System Manager
uucp-rlogin
541
TCP/UDP
Uucp-rlogin Stuart Lynne
klogin
543
TCP/UDP
Kerberos (v4/v5)
kshell
544
TCP/UDP
krcmd Kerberos (v4/v5)
dhcpv6-client
546
TCP/UDP
DHCPv6 Client
dhcpv6-server
547
TCP/UDP
DHCPv6 Server
cybercash
551
TCP/UDP
Cybercash
remotefs
556
TCP/UDP
Rfs server
9pfs
564
TCP/UDP
Plan 9 file service
whoami
565
TCP/UDP
Whoami
msn
569
TCP
Microsoft Network
doom
666
TCP/UDP
Doom Id Software
kerberos-adm
749
TCP/UDP
Kerberos administration
webster
765
TCP/UDP
Network dictionary
phonebook
767
TCP/UDP
Phone
socks
1080
TCP/UDP
Socks
hermes
1248
TCP/UDP
Hermes
lotusnote
1352
TCP/UDP
Lotus Notes
netware-csp
1366
TCP/UDP
Novell NetWare Comm Service Platform
novell-lu6.2
1416
TCP/UDP
Novell LU6.2
netopia
1419
8000
UDP
TCP
Netopia Virtual Office
ms-sql-s
1433
TCP/UDP
Microsoft-SQL-Server
ms-sql-m
1434
TCP/UDP
Microsoft-SQL-Monitor
winframe
1494
TCP
WinFrame
watcom-sql
1498
TCP/UDP
Watcom-SQL
ingreslock
1524
TCP/UDP
Ingres
groupwise
1677
TCP
GroupWise
nfs
2049
TCP/UDP
Network File Server
www-dev
2784
TCP/UDP
World Wide Web - development
Squid
3128
TCP/UDP
Web proxy/caching service --
frequently scanned for vulnerabilities
ccmail
3264
TCP/UDP
Cc:mail/lotus
ICQ
2109
4000
TCP
UDP
Used for chat
Firstclass
3000
30004
TCP
FirstClass (ftp channel on 510 TCP)
compuserve
4144
TCP
CompuServe Online
rfe
5002
TCP/UDP
Radio free ethernet
aol
5190
TCP
America Online
x11
6000
TCP/UDP
X Window System (through 6063)
font-service
7100
TCP/UDP
X Font Service
Service Name
Port #
Protocol
Description