A free known port scan does not mean that you don't have trojans. There are a total of 130,000 ports on your system - 65,536 TCP based ports (for popular services like telnet, ftp, http), and another 65,536 UDP based ports (fast, but not as reliable, datagram services).

The free service is intended to find the most likely trouble spots, and is good in checking things like firewall configurations. If you need to know the status of every port on your system, checking for trojans and such, you can go to the command line and run "netstat -a -n" at the command prompt, and you will be given a list of all open connections, and any ports accepting new connections (in the listening state).

Remember, we've set up the port scan to test common problems, firewall configurations, and so on, from an external point of view. Since scanning all 130,000 ports would take many hours, we limit the free test to the common known services. Further, it is virtually impossible to reliably scan UDP based services. This is because there is no way to detect the different between an Open UDP port, and a situation where we lost packets on the network due to congestion, collisions, etc. Only YOU can tell if you have a UDP port by running "netstat" or an equivalent program.

The following table lists all the ports that we check for. Please note that we list the known service for a port. For example, port 23 is officially telnet. But just because the port is officially listed as telnet doesn't mean it is. In many cases, trojans are known to co-opt a known port for their own use.

Scanned Ports List

Port Name	Port Number	Description
tcpmux	1/tcp	TCP Port Service Multiplexer [rfc-1078]
compressnet	2/tcp	Management Utility
compressnet	3/tcp	Compression Process
rje	5/tcp	Remote Job Entry
discard	9/tcp	sink null
systat	11/tcp	Active Users
qotd	17/tcp	Quote of the Day
msp	18/tcp	Message Send Protocol
chargen	19/tcp	ttytst source Character Generator
ftp-data	20/tcp	File Transfer [Default Data]
ftp	21/tcp	File Transfer [Control]
ssh	22/tcp	Secure Shell Login
priv-mail	24/tcp	any private mail system
smtp	25/tcp	Simple Mail Transfer
nsw-fe	27/tcp	NSW User System FE
msg-icp	29/tcp	MSG ICP
msg-auth	31/tcp	MSG Authentication
dsp	33/tcp	Display Support Protocol
priv-print	35/tcp	any private printer server
time	37/tcp	timserver
rap	38/tcp	Route Access Protocol
rlp	39/tcp	Resource Location Protocol
nameserver	42/tcp	Host Name Server
whois	43/tcp	nicname
mpm-flags	44/tcp	MPM FLAGS Protocol
mpm	45/tcp	Message Processing Module [recv]
mpm-snd	46/tcp	MPM [default send]
ni-ftp	47/tcp	NI FTP
auditd	48/tcp	Digital Audit Daemon
tacacs	49/tcp	Login Host Protocol (TACACS)
re-mail-ck	50/tcp	Remote Mail Checking Protocol
la-maint	51/tcp	IMP Logical Address Maintenance
xns-time	52/tcp	XNS Time Protocol
domain	53/tcp	Domain Name Server
xns-ch	54/tcp	XNS Clearinghouse
isi-gl	55/tcp	ISI Graphics Language
xns-auth	56/tcp	XNS Authentication
priv-term	57/tcp	any private terminal access
xns-mail	58/tcp	XNS Mail
priv-file	59/tcp	any private file service
ni-mail	61/tcp	NI MAIL
acas	62/tcp	ACA Services
via-ftp	63/tcp	VIA Systems - FTP & whois++
covia	64/tcp	Communications Integrator (CI)
tacacs-ds	65/tcp	TACACS-Database Service
sql*net	66/tcp	Oracle SQL*NET
bootps	67/tcp	Bootstrap Protocol Server
bootpc	68/tcp	Bootstrap Protocol Client
tftp	69/tcp	Trivial File Transfer
netrjs-1	71/tcp	Remote Job Service
netrjs-2	72/tcp	Remote Job Service
netrjs-3	73/tcp	Remote Job Service
netrjs-4	74/tcp	Remote Job Service
priv-dial	75/tcp	any private dial out service
deos	76/tcp	Distributed External Object Store
priv-rje	77/tcp	any private RJE service, netrjs
http	80/tcp	World Wide Web HTTP
hosts2-ns	81/tcp	HOSTS2 Name Server
xfer	82/tcp	XFER Utility
mit-ml-dev	83/tcp	MIT ML Device
ctf	84/tcp	Common Trace Facility
mit-ml-dev	85/tcp	MIT ML Device
mfcobol	86/tcp	Micro Focus Cobol
priv-term-l	87/tcp	any private terminal link, ttylink
kerberos-sec	88/tcp	Kerberos (v5)
su-mit-tg	89/tcp	SU/MIT Telnet Gateway
dnsix	90/tcp	DNSIX Securit Attribute Token Map
mit-dov	91/tcp	MIT Dover Spooler
npp	92/tcp	Network Printing Protocol
dcp	93/tcp	Device Control Protocol
objcall	94/tcp	Tivoli Object Dispatcher
supdup	95/tcp	BSD supdupd(8)
dixie	96/tcp	DIXIE Protocol Specification
swift-rvf	97/tcp	Swift Remote Virtural File Protocol
linuxconf	98/tcp	linuxconf
metagram	99/tcp	Metagram Relay
newacct	100/tcp	[unauthorized use]
hostname	101/tcp	hostnames NIC Host Name Server
iso-tsap	102/tcp	tsap ISO-TSAP Class 0
gppitnp	103/tcp	Genesis Point-to-Point Trans Net, or x400 ISO Email
acr-nema	104/tcp	ACR-NEMA Digital Imag. & Comm. 300
csnet-ns	105/tcp	Mailbox Name Nameserver
pop3pw	106/tcp	Eudora compatible PW changer
rtelnet	107/tcp	Remote Telnet
snagas	108/tcp	SNA Gateway Access Server
pop-2	109/tcp	PostOffice V.2
pop-3	110/tcp	PostOffice V.3
sunrpc	111/tcp	portmapper, rpcbind
mcidas	112/tcp	McIDAS Data Transmission Protocol
auth	113/tcp	ident, tap, Authentication Service
audionews	114/tcp	Audio News Multicast
sftp	115/tcp	Simple File Transfer Protocol
ansanotify	116/tcp	ANSA REX Notify
uucp-path	117/tcp	UUCP Path Service
sqlserv	118/tcp	SQL Services
nntp	119/tcp	Network News Transfer Protocol
erpc	121/tcp	Encore Expedited Remote Pro.Call
ntp	123/tcp	Network Time Protocol
ansatrader	124/tcp	ANSA REX Trader
locus-map	125/tcp	Locus PC-Interface Net Map Ser
unitary	126/tcp	Unisys Unitary Login
locus-con	127/tcp	Locus PC-Interface Conn Server
gss-xlicen	128/tcp	GSS X License Verification
pwdgen	129/tcp	Password Generator Protocol
cisco-fna	130/tcp	cisco FNATIVE
cisco-tna	131/tcp	cisco TNATIVE
cisco-sys	132/tcp	cisco SYSMAINT
statsrv	133/tcp	Statistics Service
ingres-net	134/tcp	INGRES-NET Service
loc-srv	135/tcp	NCS local location broker
profile	136/tcp	PROFILE Naming System
netbios-ns	137/tcp	NETBIOS Name Service
netbios-dgm	138/tcp	NETBIOS Datagram Service
netbios-ssn	139/tcp	NETBIOS Session Service
emfis-data	140/tcp	EMFIS Data Service
emfis-cntl	141/tcp	EMFIS Control Service
bl-idm	142/tcp	Britton-Lee IDM
imap2	143/tcp	Interim Mail Access Protocol v2
news	144/tcp	NewS window system
uaac	145/tcp	UAAC Protocol
cronus	148/tcp	CRONUS-SUPPORT
aed-512	149/tcp	AED 512 Emulation Service
bftp	152/tcp	Background File Transfer Program
sqlsrv	156/tcp	SQL Service
knet-cmp	157/tcp	KNET/VM Command/Message Protocol
pcmail-srv	158/tcp	PCMail Server
snmptrap	162/tcp	snmp-trap
cmip-man	163/tcp	CMIP/TCP Manager
cmip-agent	164/tcp	CMIP/TCP Agent
xns-courier	165/tcp	Xerox
s-net	166/tcp	Sirius Systems
print-srv	170/tcp	Network PostScript
multiplex	171/tcp	Network Innovations Multiplex
cl-1	172/tcp	Network Innovations CL/1
xdmcp	177/tcp	X Display Mgr. Control Proto
nextstep	178/tcp	NextStep Window Server
bgp	179/tcp	Border Gateway Protocol
ris	180/tcp	Intergraph
audit	182/tcp	Unisys Audit SITP
kis	186/tcp	KIS Protocol
aci	187/tcp	Application Communication Interface
mumps	188/tcp	Plus Five's MUMPS
qft	189/tcp	Queued File Transport
gacp	190/tcp	Gateway Access Control Protocol
prospero	191/tcp	Prospero Directory Service
osu-nms	192/tcp	OSU Network Monitoring System
srmp	193/tcp	Spider Remote Monitoring Protocol
irc	194/tcp	Internet Relay Chat
dn6-nlm-aud	195/tcp	DNSIX Network Level Module Audit
dn6-smm-red	196/tcp	DNSIX Session Mgt Module Audit Redir
dls	197/tcp	Directory Location Service
dls-mon	198/tcp	Directory Location Service Monitor
smux	199/tcp	SNMP Unix Multiplexer
src	200/tcp	IBM System Resource Controller
at-rtmp	201/tcp	AppleTalk Routing Maintenance
at-nbp	202/tcp	AppleTalk Name Binding
at-3	203/tcp	AppleTalk Unused
at-echo	204/tcp	AppleTalk Echo
at-5	205/tcp	AppleTalk Unused
at-zis	206/tcp	AppleTalk Zone Information
at-7	207/tcp	AppleTalk Unused
at-8	208/tcp	AppleTalk Unused
tam	209/tcp	Trivial Authenticated Mail Protocol
z39.50	210/tcp	wais, ANSI Z39.50
914c-g	211/tcp	Texas Instruments 914C/G Terminal
anet	212/tcp	ATEXSSTR
softpc	215/tcp	Insignia Solutions
atls	216/tcp	Access Technology License Server
dbase	217/tcp	dBASE Unix
mpp	218/tcp	Netix Message Posting Protocol
uarps	219/tcp	Unisys ARPs
imap3	220/tcp	Interactive Mail Access Protocol v3
fln-spx	221/tcp	Berkeley rlogind with SPX auth
rsh-spx	222/tcp	Berkeley rshd with SPX auth
cdc	223/tcp	Certificate Distribution Center
sur-meas	243/tcp	Survey Measurement
dsp3270	246/tcp	Display Systems Protocol
set	257/tcp	secure electronic transaction
yak-chat	258/tcp	yak winsock personal chat
esro-gen	259/tcp	efficient short remote operations
nsiiops	261/tcp	iiop name service over tls/ssl
cableport-ax	282/tcp	cable port a/x
novastorbakcup	308/tcp	novastor backup
asip-webadmin	311/tcp	appleshare ip webadmin
pdap	344/tcp	Prospero Data Access Protocol
pawserv	345/tcp	Perf Analysis Workbench
zserv	346/tcp	Zebra server
fatserv	347/tcp	Fatmen Server
csi-sgwp	348/tcp	Cabletron Management Protocol
matip-type-a	350/tcp	MATIP Type A
matip-type-b	351/tcp	MATIP Type B or bhoetty
dtag-ste-sb	352/tcp	DTAG, or bhoedap4
cloanto-net-1	356/tcp	Cloanto Net 1
tenebris_nts	359/tcp	Tenebris Network Trace Service
srssend	362/tcp	SRS Send
dtk	365/tcp	Deception Tool Kit (lame -- see www.all.net)
ulistserv	372/tcp	Unix Listserv
legent-1	373/tcp	Legent Corporation (now Computer Associates Intl.)
legent-2	374/tcp	Legent Corporation (now Computer Associates Intl.)
nip	376/tcp	Amiga Envoy Network Inquiry Proto
tnETOS	377/tcp	NEC Corporation
dsETOS	378/tcp	NEC Corporation
is99c	379/tcp	TIA/EIA/IS-99 modem client
is99s	380/tcp	TIA/EIA/IS-99 modem server
hp-collector	381/tcp	hp performance data collector
hp-managed-node	382/tcp	hp performance data managed node
hp-alarm-mgr	383/tcp	hp performance data alarm manager
arns	384/tcp	A Remote Network Server System
ibm-app	385/tcp	IBM Application
asa	386/tcp	ASA Message Router Object Def.
aurp	387/tcp	Appletalk Update-Based Routing Pro.
unidata-ldm	388/tcp	Unidata LDM Version 4
ldap	389/tcp	Lightweight Directory Access Protocol
synotics-relay	391/tcp	SynOptics SNMP Relay Port
synotics-broker	392/tcp	SynOptics Port Broker Port
dis	393/tcp	Data Interpretation System
embl-ndt	394/tcp	EMBL Nucleic Data Transfer
netcp	395/tcp	NETscout Control Protocol
netware-ip	396/tcp	Novell Netware over IP
mptn	397/tcp	Multi Protocol Trans. Net.
iso-tsap-c2	399/tcp	ISO-TSAP Class 2
work-sol	400/tcp	Workstation Solutions
ups	401/tcp	Uninterruptible Power Supply
genie	402/tcp	Genie Protocol
imsp	406/tcp	Interactive Mail Support Protocol
prm-sm	408/tcp	Prospero Resource Manager Sys. Man.
prm-nm	409/tcp	Prospero Resource Manager Node Man.
decladebug	410/tcp	DECLadebug Remote Debug Protocol
rmt	411/tcp	Remote MT Protocol
synoptics-trap	412/tcp	Trap Convention Port
opc-job-start	423/tcp	IBM Operations Planning and Control Start
opc-job-track	424/tcp	IBM Operations Planning and Control Track
svrloc	427/tcp	Server Location
nnsp	433/tcp	Usenet, Network News Transfer
https	443/tcp	secure http (SSL)
snpp	444/tcp	Simple Network Paging Protocol
ddm-ssl	448/tcp	ddm-byte
as-servermap	449/tcp	AS Server Mapper
sfs-smp-net	451/tcp	Cray Network Semaphore server
sfs-config	452/tcp	Cray SFS config server
appleqtc	458/tcp	apple quick time
kpasswd5	464/tcp	Kerberos (v5)
smtps	465/tcp	smtp protocol over TLS/SSL (was ssmtp)
photuris	468/tcp	Photuris Key Management
rcp	469/tcp	Radio Control Protocol
integra-sme	484/tcp	Integra Software Management Environment
powerburst	485/tcp	Air Soft Power Burst
saft	487/tcp	saft Simple Asynchronous File Transfer
ticf-1	492/tcp	Transport Independent Convergence for FNA
ticf-2	493/tcp	Transport Independent Convergence for FNA
iso-ill	499/tcp	ISO ILL Protocol
fcp	510/tcp	FirstClass Protocol
exec	512/tcp	BSD rexecd(8)
login	513/tcp	BSD rlogind(8)
shell	514/tcp	BSD rshd(8)
printer	515/tcp	spooler (lpd)
talk	517/tcp	like tenex link, but across
ntalk	518/tcp	(talkd)
utime	519/tcp	unixtime
efs	520/tcp	extended file name server
timed	525/tcp	timeserver
tempo	526/tcp	newdate
stx	527/tcp	Stock IXChange
custix	528/tcp	Customer IXChange
courier	530/tcp	rpc
conference	531/tcp	chat
netnews	532/tcp	readnews
netwall	533/tcp	for emergency broadcasts
mm-admin	534/tcp	MegaMedia Admin
nmsp	537/tcp	Networked Media Streaming Protocol
apertus-ldp	539/tcp	Apertus Technologies Load Determination
uucp	540/tcp	uucpd
klogin	543/tcp	Kerberos (v4/v5)
kshell	544/tcp	krcmd Kerberos (v4/v5)
ekshell	545/tcp	Kerberos encrypted remote shell -kfall
dhcpv6-client	546/tcp	DHCPv6 Client
dhcpv6-server	547/tcp	DHCPv6 Server
afpovertcp	548/tcp	AFP over TCP
new-rwho	550/tcp	new-who
rtsp	554/tcp	Real Time Stream Control Protocol
remotefs	556/tcp	rfs, rfs_server, Brunhoff remote filesystem
rmonitor	560/tcp	rmonitord
chshell	562/tcp	chcmd
9pfs	564/tcp	plan 9 file service
ms-shuttle	568/tcp	Microsoft shuttle
ms-rome	569/tcp	Microsoft rome
meter	570/tcp	demon
umeter	571/tcp	udemon
ftp-agent	574/tcp	FTP Software Agent System
bdp	581/tcp	Bundle Discovery Protocol
philips-vc	583/tcp	Philips Video-Conferencing
imap4-ssl	585/tcp	IMAP4+SSL (use of 585 is not recommended,
http-alt	591/tcp	FileMaker, Inc. - HTTP Alternate
http-rpc-epmap	593/tcp	HTTP RPC Ep Map
ptcnameservice	597/tcp	PTC Name Service
sco-websrvrmg3	598/tcp	SCO Web Server Manager 3
acp	599/tcp	Aeolon Core Protocol
ipcserver	600/tcp	Sun IPC server
urm	606/tcp	Cray Unified Resource Manager
sift-uft	608/tcp	Sender-Initiated/Unsolicited File Transfer
qmqp	628/tcp	Qmail Quick Mail Queueing
cups	631/tcp	http://www.cups.org (Common UNIX Printing System)
ldapssl	636/tcp	LDAP over SSL
doom	666/tcp	doom Id Software
resvc	691/tcp	The Microsoft Exchange 2000 Server Routing Service
elcsd	704/tcp	errlog copy/server daemon
entrustmanager	709/tcp	EntrustManager - NorTel DES auth network see 389/tcp
netviewdm1	729/tcp	IBM NetView DM/6000 Server/Client
netviewdm2	730/tcp	IBM NetView DM/6000 send/tcp
netviewdm3	731/tcp	IBM NetView DM/6000 receive/tcp
netcp	740/tcp	NETscout Control Protocol
netrcs	742/tcp	Network based Rev. Cont. Sys.
flexlm	744/tcp	Flexible License Manager
fujitsu-dev	747/tcp	Fujitsu Device Control
ris-cm	748/tcp	Russell Info Sci Calendar Manager
kerberos-adm	749/tcp	Kerberos 5 admin/changepw
kerberos	750/tcp	kdc Kerberos (v4)
kerberos_master	751/tcp	Kerberos `kadmin' (v4)
krb_prop	754/tcp	kerberos/v5 server propagation
krbupdate	760/tcp	kreg Kerberos (v4) registration
kpasswd	761/tcp	kpwd Kerberos (v4) "passwd"
phonebook	767/tcp	phone
hp-collector	781/tcp	hp performance data collector
hp-managed-node	782/tcp	hp performance data managed node
hp-alarm-mgr	783/tcp	hp performance data alarm manager
supfilesrv	871/tcp	SUP server
rsync	873/tcp	Rsync server ( http://rsync.samba.org )
accessbuilder	888/tcp	or Audio CD Database
ftps-data	989/tcp	ftp protocol, data, over TLS/SSL
samba-swat	901/tcp	Samba SWAT tool. Also used by ISS RealSecure.
oftep-rpc	950/tcp	Often RPC.statd (on Redhat Linux)
rndc	953/tcp	RNDC is used by BIND 9 (& probably other NS)
ftps	990/tcp	ftp protocol, control, over TLS/SSL
telnets	992/tcp	telnet protocol over TLS/SSL
imaps	993/tcp	imap4 protocol over TLS/SSL
ircs	994/tcp	irc protocol over TLS/SSL
pop3s	995/tcp	POP3 protocol over TLS/SSL
xtreelic	996/tcp	XTREE License Server
ufsd	1008/tcp	ufsd # UFS-aware server
kdm	1024/tcp	K Display Manager (KDE version of xdm)
listen	1025/tcp	listener RFS remote_file_sharing
nterm	1026/tcp	remote_login network_terminal
iad1	1030/tcp	BBN IAD
iad2	1031/tcp	BBN IAD
iad3	1032/tcp	BBN IAD
instl_boots	1067/tcp	Installation Bootstrap Proto. Serv.
instl_bootc	1068/tcp	Installation Bootstrap Proto. Cli.
ansoft-lm-1	1083/tcp	Anasoft License Manager
ansoft-lm-2	1084/tcp	Anasoft License Manager
xaudio	1103/tcp	Xaserver # X Audio Server
kpop	1109/tcp	Pop with Kerberos
nfsd-status	1110/tcp	Cluster status info
msql	1112/tcp	mini-sql server
supfiledbg	1127/tcp	SUP debugging
cce3x	1139/tcp	ClearCommerce Engine 3.x ( www.clearcommerce.com)
nfa	1155/tcp	Network File Access
skkserv	1178/tcp	SKK (kanji input)
nerv	1222/tcp	SNI R&D network
msg	1241/tcp	remote message server
alta-ana-lm	1346/tcp	Alta Analytics License Manager
bbn-mmc	1347/tcp	multi media conferencing
bbn-mmx	1348/tcp	multi media conferencing
sbook	1349/tcp	Registration Network Protocol
editbench	1350/tcp	Registration Network Protocol
equationbuilder	1351/tcp	Digital Tool Works (MIT)
lotusnotes	1352/tcp	Lotus Note
relief	1353/tcp	Relief Consulting
rightbrain	1354/tcp	RightBrain Software
intuitive-edge	1355/tcp	Intuitive Edge
cuillamartin	1356/tcp	CuillaMartin Company
pegboard	1357/tcp	Electronic PegBoard
ndm-requester	1363/tcp	Network DataMover Requester
ndm-server	1364/tcp	Network DataMover Server
adapt-sna	1365/tcp	Network Software Associates
netware-csp	1366/tcp	Novell NetWare Comm Service Platform
gv-us	1369/tcp	GlobalView to Unix Shell
us-gv	1370/tcp	Unix Shell to GlobalView
fc-cli	1371/tcp	Fujitsu Config Protocol
fc-ser	1372/tcp	Fujitsu Config Protocol
molly	1374/tcp	EPI Software Systems
ibm-pps	1376/tcp	IBM Person to Person Software
cichlid	1377/tcp	Cichlid License Manager
elan	1378/tcp	Elan License Manager
dbreporter	1379/tcp	Integrity Solutions
telesis-licman	1380/tcp	Telesis Network License Manager
apple-licman	1381/tcp	Apple Network License Manager
gwha	1383/tcp	GW Hannaway Network License Manager
os-licman	1384/tcp	Objective Solutions License Manager
atex_elmd	1385/tcp	Atex Publishing License Manager
checksum	1386/tcp	CheckSum License Manager
cadsi-lm	1387/tcp	Computer Aided Design Software Inc LM
objective-dbc	1388/tcp	Objective Solutions DataBase Cache
iclpv-dm	1389/tcp	Document Manager
iclpv-sc	1390/tcp	Storage Controller
iclpv-sas	1391/tcp	Storage Access Server
iclpv-pm	1392/tcp	Print Manager
iclpv-nls	1393/tcp	Network Log Server
iclpv-nlc	1394/tcp	Network Log Client
iclpv-wsm	1395/tcp	PC Workstation Manager software
dvl-activemail	1396/tcp	DVL Active Mail
audio-activmail	1397/tcp	Audio Active Mail
video-activmail	1398/tcp	Video Active Mail
cadkey-licman	1399/tcp	Cadkey License Manager
cadkey-tablet	1400/tcp	Cadkey Tablet Daemon
goldleaf-licman	1401/tcp	Goldleaf License Manager
prm-sm-np	1402/tcp	Prospero Resource Manager
prm-nm-np	1403/tcp	Prospero Resource Manager
igi-lm	1404/tcp	Infinite Graphics License Manager
ibm-res	1405/tcp	IBM Remote Execution Starter
netlabs-lm	1406/tcp	NetLabs License Manager
dbsa-lm	1407/tcp	DBSA License Manager
sophia-lm	1408/tcp	Sophia License Manager
here-lm	1409/tcp	Here License Manager
hiq	1410/tcp	HiQ License Manager
af	1411/tcp	AudioFile
ibm-mqseries	1414/tcp	IBM MQSeries
novell-lu6.2	1416/tcp	Novell LU6.2
timbuktu-srv1	1417/tcp	Timbuktu Service 1 Port
timbuktu-srv2	1418/tcp	Timbuktu Service 2 Port
timbuktu-srv3	1419/tcp	Timbuktu Service 3 Port
timbuktu-srv4	1420/tcp	Timbuktu Service 4 Port
gandalf-lm	1421/tcp	Gandalf License Manager
autodesk-lm	1422/tcp	Autodesk License Manager
essbase	1423/tcp	Essbase Arbor Software
hybrid	1424/tcp	Hybrid Encryption Protocol
zion-lm	1425/tcp	Zion Software License Manager
sas-1	1426/tcp	Satellite-data Acquisition System 1
mloadd	1427/tcp	mloadd monitoring tool
informatik-lm	1428/tcp	Informatik License Manager
nms	1429/tcp	Hypercom NMS
tpdu	1430/tcp	Hypercom TPDU
rgtp	1431/tcp	Reverse Gossip Transport
blueberry-lm	1432/tcp	Blueberry Software License Manager
ms-sql-s	1433/tcp	Microsoft-SQL-Server
ms-sql-m	1434/tcp	Microsoft-SQL-Monitor
sas-2	1436/tcp	Satellite-data Acquisition System 2
eicon-server	1438/tcp	Eicon Security Agent/Server
eicon-x25	1439/tcp	Eicon X25/SNA Gateway
eicon-slp	1440/tcp	Eicon Service Location Protocol
cadis-1	1441/tcp	Cadis License Management
cadis-2	1442/tcp	Cadis License Management
ies-lm	1443/tcp	Integrated Engineering Software
marcam-lm	1444/tcp	Marcam License Management
proxima-lm	1445/tcp	Proxima License Manager
ora-lm	1446/tcp	Optical Research Associates License Manager
apri-lm	1447/tcp	Applied Parallel Research LM
oc-lm	1448/tcp	OpenConnect License Manager
dwf	1450/tcp	Tandem Distributed Workbench Facility
infoman	1451/tcp	IBM Information Management
gtegsc-lm	1452/tcp	GTE Government Systems License Man
genie-lm	1453/tcp	Genie License Manager
interhdl_elmd	1454/tcp	interHDL License Manager
esl-lm	1455/tcp	ESL License Manager
valisys-lm	1457/tcp	Valisys License Manager
nrcabq-lm	1458/tcp	Nichols Research Corp.
proshare1	1459/tcp	Proshare Notebook Application
proshare2	1460/tcp	Proshare Notebook Application
ibm_wrless_lan	1461/tcp	IBM Wireless LAN
world-lm	1462/tcp	World License Manager
msl_lmd	1464/tcp	MSL License Manager
pipes	1465/tcp	Pipes Platform
oceansoft-lm	1466/tcp	Ocean Software License Manager
aal-lm	1469/tcp	Active Analysis Limited License Manager
uaiact	1470/tcp	Universal Analytics
taligent-lm	1475/tcp	Taligent License Manager
miteksys-lm	1482/tcp	Miteksys License Manager
afs	1483/tcp	AFS License Manager
confluent	1484/tcp	Confluent License Manager
fhc	1499/tcp	Federico Heinz Consultora
vlsi-lm	1500/tcp	VLSI License Manager
sas-3	1501/tcp	Satellite-data Acquisition System 3
shivadiscovery	1502/tcp	Shiva
imtc-mcs	1503/tcp	Databeam
evb-elm	1504/tcp	EVB Software Engineering License Manager
funkproxy	1505/tcp	Funk Software, Inc.
utcd	1506/tcp	Universal Time daemon (utcd)
robcad-lm	1509/tcp	Robcad, Ltd. License Manager
mvx-lm	1510/tcp	Midland Valley Exploration Ltd. Lic. Man.
wins	1512/tcp	Microsoft's Windows Internet Name Service
fujitsu-dtc	1513/tcp	Fujitsu Systems Business of America, Inc
fujitsu-dtcns	1514/tcp	Fujitsu Systems Business of America, Inc
vpad	1516/tcp	Virtual Places Audio data
vpac	1517/tcp	Virtual Places Audio control
vpvd	1518/tcp	Virtual Places Video data
vpvc	1519/tcp	Virtual Places Video control
atm-zip-office	1520/tcp	atm zip office
ncube-lm	1521/tcp	nCube License Manager
rna-lm	1522/tcp	Ricardo North America License Manager
ingreslock	1524/tcp	ingres
orasrv	1525/tcp	oracle or Prospero Directory Service non-priv
pdap-np	1526/tcp	Prospero Data Access Prot non-priv
tlisrv	1527/tcp	oracle
support	1529/tcp	prmsd gnatsd # cygnus bug tracker
virtual-places	1533/tcp	Virtual Places Software
intellistor-lm	1539/tcp	Intellistor License Manager
axon-lm	1548/tcp	Axon License Manager
shivahose	1549/tcp	Shiva Hose
3m-image-lm	1550/tcp	Image Storage license manager 3M Company
pptp	1723/tcp	Point-to-point tunnelling protocol
pcm	1827/tcp	PCM Agent (AutoSecure Policy Compliance Manager
licensedaemon	1986/tcp	cisco license management
tr-rsrb-p1	1987/tcp	cisco RSRB Priority 1 port
tr-rsrb-p2	1988/tcp	cisco RSRB Priority 2 port
tr-rsrb-p3	1989/tcp	cisco RSRB Priority 3 port
stun-p1	1990/tcp	cisco STUN Priority 1 port
stun-p2	1991/tcp	cisco STUN Priority 2 port
stun-p3	1992/tcp	cisco STUN Priority 3 port
snmp-tcp-port	1993/tcp	cisco SNMP TCP port
stun-port	1994/tcp	cisco serial tunnel port
perf-port	1995/tcp	cisco perf port
tr-rsrb-port	1996/tcp	cisco Remote SRB port
gdp-port	1997/tcp	cisco Gateway Discovery Protocol
x25-svc-port	1998/tcp	cisco X.25 service (XOT)
tcp-id-port	1999/tcp	cisco identification port
dc	2001/tcp	or nfr20 web queries
cfingerd	2003/tcp	GNU finger
deslogin	2005/tcp	encrypted symmetric telnet/login
search	2010/tcp	Or nfr411
raid-cc	2011/tcp	raid
nfs	2049/tcp	networked file system
distrib-net-losers	2064/tcp	A group of lamers working on a silly closed-source client for solving the RSA cryptographic challenge. This is the keyblock proxy port.
dlsrpn	2065/tcp	Data Link Switch Read Port Number
dlswpn	2067/tcp	Data Link Switch Write Port Number
eklogin	2105/tcp	Kerberos (v4) encrypted rlogin
ekshell	2106/tcp	Kerberos (v4) encrypted rshell
rkinit	2108/tcp	Kerberos (v4) remote initialization
kx	2111/tcp	X over kerberos
kip	2112/tcp	IP over kerberos
kauth	2120/tcp	Remote kauth
ats	2201/tcp	Advanced Training System Program
ivs-video	2232/tcp	IVS Video default
ivsd	2241/tcp	IVS Daemon
compaqdiag	2301/tcp	Compaq remote diagnostic/management
cvspserver	2401/tcp	CVS network server
rtsserv	2500/tcp	Resource Tracking system server
rtsclient	2501/tcp	Resource Tracking system client
hp-3000-telnet	2564/tcp	HP 3000 NS/VT block mode telnet
zebrasrv	2600/tcp	zebra service
zebra	2601/tcp	zebra vty
ripd	2602/tcp	RIPd vty
ripngd	2603/tcp	RIPngd vty
ospfd	2604/tcp	OSPFd vty
bgpd	2605/tcp	BGPd vty
webster	2627/tcp	Network dictionary
sybase	2638/tcp	Sybase database
listen	2766/tcp	System V listener port
www-dev	2784/tcp	world wide web - development
iss-realsec	2998/tcp	ISS RealSecure IDS Remote Console Admin port
ppp	3000/tcp	User-level ppp daemon
nessusd	3001/tcp	Nessus Security Scanner (www.nessus.org) Daemon
deslogin	3005/tcp	encrypted symmetric telnet/login
cfs	3049/tcp	cryptographic file system (nfs) (proposed)
distrib-net-proxy	3064/tcp	Stupid closed source distributed.net project proxy port
sj3	3086/tcp	SJ3 (kanji input)
ccmail	3264/tcp	cc:mail/lotus
mysql	3306/tcp	mySQL
dec-notes	3333/tcp	DEC Notes
msrdp	3389/tcp	Micro$oft Remote Display Protocol
bmap	3421/tcp	Bull Apprise portmapper
prsvp	3455/tcp	RSVP Port
vat	3456/tcp	VAT default data
vat-control	3457/tcp	VAT default control
track	3462/tcp	software distribution
udt_os	3900/tcp	Unidata UDT OS
mapper-nodemgr	3984/tcp	MAPPER network node manager
mapper-mapethd	3985/tcp	MAPPER TCP/IP server
mapper-ws_ethd	3986/tcp	MAPPER workstation server
netcheque	4008/tcp	NetCheque accounting
nuts_dem	4132/tcp	NUTS Daemon
nuts_bootp	4133/tcp	NUTS Bootp Server
wincim	4144/tcp	pc windows compuserve.com protocol
rwhois	4321/tcp	Remote Who Is
msql	4333/tcp	mini-sql server
krb524	4444/tcp	Kerberos 5 to 4 ticket xlator
fax	4557/tcp	FlexFax FAX transmission service
hylafax	4559/tcp	HylaFAX client-server protocol
rfa	4672/tcp	remote file access server
fics	5000/tcp	Free Internet Chess Server
rfe	5002/tcp	Radio Free Ethernet
mmcc	5050/tcp	multimedia conference control tool
aol	5190/tcp	America-Online
aol-1	5191/tcp	AmericaOnline1
aol-2	5192/tcp	AmericaOnline2
aol-3	5193/tcp	AmericaOnline3
sgi-dgl	5232/tcp	SGI Distributed Graphics
hacl-hb	5300/tcp	HA cluster heartbeat
hacl-gs	5301/tcp	HA cluster general services
hacl-cfg	5302/tcp	HA cluster configuration
hacl-probe	5303/tcp	HA cluster probing
pcduo-old	5400/tcp	RemCon PC-Duo - old port
pcduo	5405/tcp	RemCon PC-Duo - new port
postgres	5432/tcp	postgres database server
secureidprop	5510/tcp	ACE/Server services
sdlog	5520/tcp	ACE/Server services
sdserv	5530/tcp	ACE/Server services
sdreport	5540/tcp	ACE/Server services
sdadmind	5550/tcp	ACE/Server services
canna	5680/tcp	Canna (Japanese Input)
proshareaudio	5713/tcp	proshare conf audio
prosharevideo	5714/tcp	proshare conf video
prosharedata	5715/tcp	proshare conf data
prosharerequest	5716/tcp	proshare conf request
prosharenotify	5717/tcp	proshare conf notify
vnc	5900/tcp	Virtual Network Computer
vnc-1	5901/tcp	Virtual Network Computer Display :1
vnc-2	5902/tcp	Virtual Network Computer Display :2
ncd-pref-tcp	5977/tcp	NCD preferences tcp port
ncd-diag-tcp	5978/tcp	NCD diagnostic tcp port
ncd-conf-tcp	5979/tcp	NCD configuration tcp port
ncd-pref	5997/tcp	NCD preferences telnet port
ncd-diag	5998/tcp	NCD diagnostic telnet port
ncd-conf	5999/tcp	NCD configuration telnet port
X11	6000/tcp	X Window server
X11:1	6001/tcp	X Window server
X11:2	6002/tcp	X Window server
X11:3	6003/tcp	X Window server
X11:4	6004/tcp	X Window server
X11:5	6005/tcp	X Window server
X11:6	6006/tcp	X Window server
X11:7	6007/tcp	X Window server
X11:8	6008/tcp	X Window server
X11:9	6009/tcp	X Window server
arcserve	6050/tcp	ARCserve agent
isdninfo	6105/tcp	isdninfo
isdninfo	6106/tcp	i4lmond
softcm	6110/tcp	HP SoftBench CM
spc	6111/tcp	HP SoftBench Sub-Process Control
dtspc	6112/tcp	CDE subprocess control
meta-corp	6141/tcp	Meta Corporation License Manager
aspentec-lm	6142/tcp	Aspen Technology License Manager
watershed-lm	6143/tcp	Watershed License Manager
statsci1-lm	6144/tcp	StatSci License Manager - 1
statsci2-lm	6145/tcp	StatSci License Manager - 2
lonewolf-lm	6146/tcp	Lone Wolf Systems License Manager
montage-lm	6147/tcp	Montage License Manager
ricardo-lm	6148/tcp	Ricardo North America License Manager
netop-rc	6502/tcp	NetOp Remote Control (by Danware Data A/S)
irc-serv	6666/tcp	internet relay chat server
irc	6667/tcp	Internet Relay Chat
irc	6668/tcp	Internet Relay Chat
napster	6699/tcp	Napster File (MP3) sharing software
afs3-fileserver	7000/tcp	file server itself, msdos
afs3-callback	7001/tcp	callbacks to cache managers
afs3-prserver	7002/tcp	users & groups database
afs3-vlserver	7003/tcp	volume location database
afs3-kaserver	7004/tcp	AFS/Kerberos authentication service
afs3-volser	7005/tcp	volume managment server
afs3-errors	7006/tcp	error interpretation service
afs3-bos	7007/tcp	basic overseer process
afs3-update	7008/tcp	server-to-server updater
afs3-rmtsys	7009/tcp	remote cache manager service
ups-onlinet	7010/tcp	onlinet uninterruptable power supplies
font-service	7100/tcp	X Font Service
fodms	7200/tcp	FODMS FLIP
icb	7326/tcp	Internet Citizen's Band
qaz	7597/tcp	Quaz trojan worm
jserv	8007/tcp	Apache JServ Protocol 1.x
ajp13	8009/tcp	Apache JServ Protocol 1.3
http-proxy	8080/tcp	Common HTTP proxy/second web server port
blackice-icecap	8081/tcp	ICECap user console
blackice-alerts	8082/tcp	BlackIce Alerts sent to this port
sun-answerbook	8888/tcp	Sun Answerbook HTTP server
seosload	8892/tcp	From the new Computer Associates eTrust ACX
zeus-admin	9090/tcp	Zeus admin server
jetdirect	9100/tcp	HP JetDirect card
DragonIDSConsole	9111/tcp	Dragon IDS Console
sd	9876/tcp	Session Director
issa	9991/tcp	ISS System Scanner Agent
issc	9992/tcp	ISS System Scanner Console
stel	10005/tcp	Secure telnet
amandaidx	10082/tcp	Amanda indexing
amidxtape	10083/tcp	Amanda tape indexing
pksd	11371/tcp	PGP Public Key Server
cce4x	12000/tcp	ClearCommerce Engine 4.x (www.clearcommerce.com)
NetBus	12345/tcp	NetBus backdoor trojan
NetBus	12346/tcp	NetBus backdoor trojan
biimenu	18000/tcp	Beckman Instruments, Inc.
btx	20005/tcp	xcept4 (Interacts with German Telekom's CEPT videotext service)
wnn6	22273/tcp	Wnn6 (Japanese input)
wnn6_Cn	22289/tcp	Wnn6 (Chinese input)
wnn6_Kr	22305/tcp	Wnn6 (Korean input)
wnn6_Tw	22321/tcp	Wnn6 (Taiwanse input)
hpnpd	22370/tcp	Hewlett-Packard Network Printer daemon
wnn6_DS	26208/tcp	Wnn6 (Dserver)
Trinoo_Master	27665/tcp	Trinoo distributed attack tool Master server control port
Elite	31337/tcp	Sometimes interesting stuff can be found here
sometimes-rpc3	32770/tcp	Sometimes an RPC port on my Solaris box
sometimes-rpc5	32771/tcp	Sometimes an RPC port on my Solaris box (rusersd)
sometimes-rpc7	32772/tcp	Sometimes an RPC port on my Solaris box (status)
sometimes-rpc9	32773/tcp	Sometimes an RPC port on my Solaris box (rquotad)
sometimes-rpc11	32774/tcp	Sometimes an RPC port on my Solaris box (rusersd)
sometimes-rpc13	32775/tcp	Sometimes an RPC port on my Solaris box (status)
sometimes-rpc15	32776/tcp	Sometimes an RPC port on my Solaris box (sprayd)
sometimes-rpc17	32777/tcp	Sometimes an RPC port on my Solaris box (walld)
sometimes-rpc19	32778/tcp	Sometimes an RPC port on my Solaris box (rstatd)
sometimes-rpc21	32779/tcp	Sometimes an RPC port on my Solaris box
sometimes-rpc23	32780/tcp	Sometimes an RPC port on my Solaris box
sometimes-rpc25	32786/tcp	Sometimes an RPC port (mountd)
sometimes-rpc27	32787/tcp	Sometimes an RPC port dmispd (DMI Service Provider)
coldfusion-auth	44442/tcp	ColdFusion Advanced Security/Siteminder Authentication Port (by Allaire/Netegrity)
coldfusion-auth	44443/tcp	ColdFusion Advanced Security/Siteminder Authentication Port (by Allaire/Netegrity)
dbbrowse	47557/tcp	Databeam Corporation
bo2k	54320/tcp	Back Orifice 2K Default Port
trojan	1001/tcp	Silencer, WebEx
trojan	1011/tcp	Doly Trojan
trojan	1045/tcp	Rasmin Trojan
trojan	1090/tcp	Xtreme Trojan
trojan	1170/tcp	Psyber Stream Server Trojan
trojan	1243/tcp	BackDoor-G, SubSeven Trojans
trojan	1245/tcp	VooDoo Doll Trojan
trojan	1807/tcp	SpySender Trojan
trojan	1981/tcp	ShockRave Trojan
trojan	2115/tcp	Bugs Trojan
trojan	2140/tcp	Deep Throat, The Invasor Trojans
trojan	2565/tcp	Striker Trojan
trojan	2583/tcp	WinCrash
trojan	2801/tcp	Phineas Phucker Trojan
trojan	3024/tcp	WinCrash Trojan
trojan	3129/tcp	Masters Paradise Trojan
trojan	3150/tcp	Deep Throat, The Invasor Trojans
trojan	3700/tcp	Portal of Doom Trojan
trojan	4092/tcp	WinCrash Trojan
trojan	4567/tcp	File Nail
trojan	4590/tcp	ICQTrojan Trojan
trojan	4950/tcp	ICQTrojan Trojan
trojan	5321/tcp	Firehotcker Trojan
trojan	5401/tcp	Blade Runner v1.x Trojan
trojan	5402/tcp	Blade Runner v2.x Trojan
trojan	5569/tcp	Robo-Hack Trojan
trojan	5742/tcp	WinCrash Trojan
trojan	6400/tcp	The Thing Trojan
trojan	6670/tcp	Deep Throat 1,2,3.x Trojan
trojan	6671/tcp	Deep Throat Trojan
trojan	6776/tcp	BackDoor-G, SubSeven trojans
trojan	6939/tcp	GateCrasher, Priority
trojan	7300/tcp	NetMonitor Trojan
trojan	7301/tcp	NetMonitor v1.x Trojan
trojan	7306/tcp	NetMonitor v2.x Trojan
trojan	7307/tcp	NetMonitor v3.x Trojan
trojan	7308/tcp	NetMonitor v4.x Trojan
trojan	7789/tcp	Back Door Setup, ICKiller Trojan
trojan	9872/tcp	Portal of Doom Trojan
trojan	9873/tcp	Portal of Doom v1.x Trojan
trojan	9874/tcp	Portal of Doom v2.x Trojan
trojan	9875/tcp	Portal of Doom v3.x Trojan
trojan	9989/tcp	iNi-Killer Trojan
trojan	10067/tcp	Portal of Doom v4.x Trojan
trojan	10167/tcp	Portal of Doom v5.x Trojan
trojan	11000/tcp	Senna Spy Trojan
trojan	11223/tcp	Progenic trojan Trojan
trojan	12223/tcp	Hack'99 KeyLogger Trojan
trojan	12361/tcp	Whack-a-mole Trojan
trojan	12362/tcp	Whack-a-mole Trojan
trojan	13000/tcp	Senna Spy Trojan
trojan	16969/tcp	Priority Trojan
trojan	20001/tcp	Millenium Trojan
trojan	20034/tcp	NetBus 2 Pro Trojan
trojan	21544/tcp	GirlFriend Trojan
trojan	22222/tcp	Prosiak Trojan
trojan	23456/tcp	Evil FTP, Ugly FTP, WhackJob