tcpmux 1/tcp
echo 7/tcp
echo 7/udp
discard 9/tcp sink null
discard 9/udp sink null
systat 11/tcp users
daytime 13/tcp
daytime 13/udp
netstat 15/tcp
qotd 17/tcp quote
msp 18/tcp

message send protocol

msp 18/udp
chargen 19/tcp ttytst source
chargen 19/udp ttytst source
ftp-data 20/tcp
ftp 21/tcp
fsp 21/udp fspd
ssh 22/tcp

SSH Remote Login Protocol

ssh 22/udp
telnet 23/tcp
smtp 25/tcp mail
time 37/tcp timserver
time 37/udp timserver
rlp 39/udp resource

resource location

nameserver 42/tcp name

IEN 116

whois 43/tcp nicname
tacacs 49/tcp

Login Host Protocol

tacacs 49/udp
re-mail-ck 50/tcp

Remote Mail Checking Protocol

re-mail-ck 50/udp
domain 53/tcp


-domain server
domain 53/udp
mtp 57/tcp


tacacs-ds 65/tcp


-Database Service
tacacs-ds 65/udp
bootps 67/tcp

BOOTP server

bootps 67/udp
bootpc 68/tcp

BOOTP client

bootpc 68/udp
tftp 69/udp
gopher 70/tcp

Internet Gopher

gopher 70/udp
rje 77/tcp netrjs
finger 79/tcp
www 80/tcp http

WorldWideWeb HTTP

www 80/udp

HyperText Transfer Protocol

link 87/tcp ttylink
kerberos 88/tcp kerberos5 krb5 kerberos-sec

Kerberos v5

kerberos 88/udp kerberos5 krb5 kerberos-sec

Kerberos v5

supdup 95/tcp
hostnames 101/tcp hostname

usually from sri

iso-tsap 102/tcp tsap

part of ISODE

acr-nema 104/tcp dicom

Digital Imag

. & Comm. 300
acr-nema 104/udp dicom

Digital Imag

. & Comm. 300
csnet-ns 105/tcp cso-ns

also used by CSO name server

csnet-ns 105/udp cso-ns
rtelnet 107/tcp

Remote Telnet

rtelnet 107/udp
pop2 109/tcp postoffice pop-2

POP version 2

pop2 109/udp pop-2
pop3 110/tcp pop-3

POP version 3

pop3 110/udp pop-3
sunrpc 111/tcp portmapper


.0 portmapper
sunrpc 111/udp portmapper
auth 113/tcp authentication tap ident
sftp 115/tcp
uucp-path 117/tcp
nntp 119/tcp readnews untp

USENET News Transfer Protocol

ntp 123/tcp
ntp 123/udp

Network Time Protocol

pwdgen 129/tcp

PWDGEN service

pwdgen 129/udp

PWDGEN service

loc-srv 135/tcp epmap

Location Service

loc-srv 135/udp epmap
netbios-ns 137/tcp

NETBIOS Name Service

netbios-ns 137/udp
netbios-dgm 138/tcp

NETBIOS Datagram Service

netbios-dgm 138/udp
netbios-ssn 139/tcp

NETBIOS session service

netbios-ssn 139/udp
imap2 143/tcp imap

Interim Mail Access P 2 and 4

imap2 143/udp imap
snmp 161/tcp

Simple Net Mgmt Protocol

snmp 161/udp

Simple Net Mgmt Protocol

snmp-trap 162/tcp snmptrap

Traps for SNMP

snmp-trap 162/udp snmptrap

Traps for SNMP

cmip-man 163/tcp

ISO mgmt over IP

cmip-man 163/udp
cmip-agent 164/tcp
cmip-agent 164/udp
mailq 174/tcp

Mailer transport queue for Zmailer

mailq 174/udp

Mailer transport queue for Zmailer

xdmcp 177/tcp

X Display Mgr

. Control Proto
xdmcp 177/udp
nextstep 178/tcp NeXTStep NextStep

NeXTStep window

nextstep 178/udp NeXTStep NextStep


bgp 179/tcp

Border Gateway Protocol

bgp 179/udp
prospero 191/tcp

Cliff Neuman

's Prospero
prospero 191/udp
irc 194/tcp

Internet Relay Chat

irc 194/udp
smux 199/tcp

SNMP Unix Multiplexer

smux 199/udp
at-rtmp 201/tcp

AppleTalk routing

at-rtmp 201/udp
at-nbp 202/tcp

AppleTalk name binding

at-nbp 202/udp
at-echo 204/tcp

AppleTalk echo

at-echo 204/udp
at-zis 206/tcp

AppleTalk zone information

at-zis 206/udp
qmtp 209/tcp

Quick Mail Transfer Protocol

qmtp 209/udp

Quick Mail Transfer Protocol

z3950 210/tcp wais


.50 database
z3950 210/udp wais
ipx 213/tcp


ipx 213/udp
imap3 220/tcp

Interactive Mail Access

imap3 220/udp

Protocol v3

pawserv 345/tcp

Perf Analysis Workbench

pawserv 345/udp
zserv 346/tcp

Zebra server

zserv 346/udp
fatserv 347/tcp

Fatmen Server

fatserv 347/udp
rpc2portmap 369/tcp
rpc2portmap 369/udp

Coda portmapper

codaauth2 370/tcp
codaauth2 370/udp

Coda authentication server

clearcase 371/tcp Clearcase
clearcase 371/udp Clearcase
ulistserv 372/tcp

UNIX Listserv

ulistserv 372/udp
ldap 389/tcp

Lightweight Directory Access Protocol

ldap 389/udp
imsp 406/tcp

Interactive Mail Support Protocol

imsp 406/udp
https 443/tcp

http protocol over TLS

https 443/udp
snpp 444/tcp

Simple Network Paging Protocol

snpp 444/udp
microsoft-ds 445/tcp

Microsoft Naked CIFS

microsoft-ds 445/udp
kpasswd 464/tcp
kpasswd 464/udp
saft 487/tcp

Simple Asynchronous File Transfer

saft 487/udp
isakmp 500/tcp


- Internet Security Association
isakmp 500/udp

and Key Management Protocol

rtsp 554/tcp

Real Time Stream Control Protocol

rtsp 554/udp

Real Time Stream Control Protocol

nqs 607/tcp

Network Queuing system

nqs 607/udp
npmp-local 610/tcp dqs313_qmaster


-local / DQS
npmp-local 610/udp dqs313_qmaster
npmp-gui 611/tcp dqs313_execd


-gui / DQS
npmp-gui 611/udp dqs313_execd
hmmp-ind 612/tcp dqs313_intercell

HMMP Indication

hmmp-ind 612/udp dqs313_intercell
qmqp 628/tcp
qmqp 628/udp
ipp 631/tcp

Internet Printing Protocol

ipp 631/udp

UNIX specific services

exec 512/tcp
biff 512/udp comsat
login 513/tcp
who 513/udp whod
shell 514/tcp cmd

no passwords used

syslog 514/udp
printer 515/tcp spooler

line printer spooler

talk 517/udp
ntalk 518/udp
route 520/udp router routed


timed 525/udp timeserver
tempo 526/tcp newdate
courier 530/tcp rpc
conference 531/tcp chat
netnews 532/tcp readnews
netwall 533/udp

for emergency broadcasts

gdomap 538/tcp

GNUstep distributed objects

gdomap 538/udp
uucp 540/tcp uucpd

uucp daemon

klogin 543/tcp


`rlogin' (v5)
kshell 544/tcp krcmd


`rsh' (v5)
afpovertcp 548/tcp

AFP over TCP

afpovertcp 548/udp
remotefs 556/tcp rfs_server rfs

Brunhoff remote filesystem

nntps 563/tcp snntp


nntps 563/udp snntp
submission 587/tcp


submission 587/udp
ldaps 636/tcp


ldaps 636/udp
tinc 655/tcp

tinc control port

tinc 655/udp
silc 706/tcp
silc 706/udp
kerberos-adm 749/tcp


`kadmin' (v5)
webster 765/tcp

Network dictionary

webster 765/udp
rsync 873/tcp
rsync 873/udp
ftps-data 989/tcp

FTP over SSL

ftps 990/tcp
telnets 992/tcp

Telnet over SSL

telnets 992/udp
imaps 993/tcp


imaps 993/udp
ircs 994/tcp

IRC over SSL

ircs 994/udp
pop3s 995/tcp


-3 over SSL
pop3s 995/udp


``Assigned Numbers'':
#> The Registered Ports are not controlled by the IANA and on most systems
#> can be used by ordinary user processes or programs executed by ordinary
#> users.
#> Ports are used in the TCP [45,106] to name the ends of logical
#> connections which carry long term conversations. For the purpose of
#> providing services to unknown callers, a service contact port is
#> defined. This list specifies the port used by the server process as its
#> contact port. While the IANA can not control uses of these ports it
#> does register or list uses of these ports as a convienence to the
#> community.
socks 1080/tcp

socks proxy server

socks 1080/udp
proofd 1093/tcp
proofd 1093/udp
rootd 1094/tcp
rootd 1094/udp
openvpn 1194/tcp
openvpn 1194/udp
rmiregistry 1099/tcp

Java RMI Registry

rmiregistry 1099/udp
kazaa 1214/tcp
kazaa 1214/udp
nessus 1241/tcp

Nessus vulnerability

nessus 1241/udp

assessment scanner

lotusnote 1352/tcp lotusnotes

Lotus Note

lotusnote 1352/udp lotusnotes
ms-sql-s 1433/tcp

Microsoft SQL Server

ms-sql-s 1433/udp
ms-sql-m 1434/tcp

Microsoft SQL Monitor

ms-sql-m 1434/udp
ingreslock 1524/tcp
ingreslock 1524/udp
prospero-np 1525/tcp

Prospero non

prospero-np 1525/udp
datametrics 1645/tcp old-radius
datametrics 1645/udp old-radius
sa-msg-port 1646/tcp old-radacct
sa-msg-port 1646/udp old-radacct
kermit 1649/tcp
kermit 1649/udp
l2f 1701/tcp l2tp
l2f 1701/udp l2tp
radius 1812/tcp
radius 1812/udp
radius-acct 1813/tcp radacct

Radius Accounting

radius-acct 1813/udp radacct
msnp 1863/tcp

MSN Messenger

msnp 1863/udp
unix-status 1957/tcp

remstats unix

-status server
log-server 1958/tcp

remstats log server

remoteping 1959/tcp

remstats remoteping server

cisco-sccp 2000/tcp sieve

Cisco SCCP

cisco-sccp 2000/udp
search 2010/tcp ndtp
pipe_server 2010/tcp
nfs 2049/tcp

Network File System

nfs 2049/udp

Network File System

gnunet 2086/tcp
gnunet 2086/udp
rtcm-sc104 2101/tcp


-104 IANA 12999
rtcm-sc104 2101/udp
cvspserver 2401/tcp

CVS client

/server operations
cvspserver 2401/udp
venus 2430/tcp

codacon port

venus 2430/udp

Venus callback

/wbc interface
venus-se 2431/tcp

tcp side effects

venus-se 2431/udp

udp sftp side effect

codasrv 2432/tcp

not used

codasrv 2432/udp

server port

codasrv-se 2433/tcp

tcp side effects

codasrv-se 2433/udp

udp sftp side effect

mon 2583/tcp


mon 2583/udp
dict 2628/tcp

Dictionary server

dict 2628/udp
gpsd 2947/tcp
gpsd 2947/udp
gds_db 3050/tcp

InterBase server

gds_db 3050/udp
icpv2 3130/tcp icp

Internet Cache Protocol

icpv2 3130/udp icp
mysql 3306/tcp
mysql 3306/udp
nut 3493/tcp

Network UPS Tools

nut 3493/udp
distcc 3632/tcp

distributed compiler

distcc 3632/udp
daap 3689/tcp

Digital Audio Access Protocol

daap 3689/udp
svn 3690/tcp subversion

Subversion protocol

svn 3690/udp subversion
suucp 4031/tcp


suucp 4031/udp


sysrqd 4094/tcp

sysrq daemon

sysrqd 4094/udp

sysrq daemon

remctl 4373/tcp

Remote Authenticated Command Service

remctl 4373/udp

Remote Authenticated Command Service

iax 4569/tcp


-Asterisk eXchange
iax 4569/udp
radmin-port 4899/tcp

RAdmin Port

radmin-port 4899/udp
rfe 5002/udp

Radio Free Ethernet

rfe 5002/tcp
mmcc 5050/tcp

multimedia conference control tool

(Yahoo IM)
mmcc 5050/udp
sip 5060/tcp

Session Initiation Protocol

sip 5060/udp
sip-tls 5061/tcp
sip-tls 5061/udp
aol 5190/tcp


aol 5190/udp
xmpp-client 5222/tcp jabber-client

Jabber Client Connection

xmpp-client 5222/udp jabber-client
xmpp-server 5269/tcp jabber-server

Jabber Server Connection

xmpp-server 5269/udp jabber-server
cfengine 5308/tcp
cfengine 5308/udp
mdns 5353/tcp

Multicast DNS

mdns 5353/udp

Multicast DNS

postgresql 5432/tcp postgres

PostgreSQL Database

postgresql 5432/udp postgres
freeciv 5556/tcp rptp

Freeciv gameplay

freeciv 5556/udp
ggz 5688/tcp

GGZ Gaming Zone

ggz 5688/udp

GGZ Gaming Zone

x11 6000/tcp x11-0

X Window System

x11 6000/udp x11-0
x11-1 6001/tcp
x11-1 6001/udp
x11-2 6002/tcp
x11-2 6002/udp
x11-3 6003/tcp
x11-3 6003/udp
x11-4 6004/tcp
x11-4 6004/udp
x11-5 6005/tcp
x11-5 6005/udp
x11-6 6006/tcp
x11-6 6006/udp
x11-7 6007/tcp
x11-7 6007/udp
gnutella-svc 6346/tcp


gnutella-svc 6346/udp
gnutella-rtr 6347/tcp


gnutella-rtr 6347/udp
sge_qmaster 6444/tcp

Grid Engine Qmaster Service

sge_qmaster 6444/udp

Grid Engine Qmaster Service

sge_execd 6445/tcp

Grid Engine Execution Service

sge_execd 6445/udp

Grid Engine Execution Service

afs3-fileserver 7000/tcp bbs

file server itself

afs3-fileserver 7000/udp bbs
afs3-callback 7001/tcp

callbacks to cache managers

afs3-callback 7001/udp
afs3-prserver 7002/tcp


& groups database
afs3-prserver 7002/udp
afs3-vlserver 7003/tcp

volume location database

afs3-vlserver 7003/udp
afs3-kaserver 7004/tcp


/Kerberos authentication
afs3-kaserver 7004/udp
afs3-volser 7005/tcp

volume managment server

afs3-volser 7005/udp
afs3-errors 7006/tcp

error interpretation service

afs3-errors 7006/udp
afs3-bos 7007/tcp

basic overseer process

afs3-bos 7007/udp
afs3-update 7008/tcp


-to-server updater
afs3-update 7008/udp
afs3-rmtsys 7009/tcp

remote cache manager service

afs3-rmtsys 7009/udp
font-service 7100/tcp xfs

X Font Service

font-service 7100/udp xfs
http-alt 8080/tcp webcache

WWW caching service

http-alt 8080/udp

WWW caching service

bacula-dir 9101/tcp

Bacula Director

bacula-dir 9101/udp
bacula-fd 9102/tcp

Bacula File Daemon

bacula-fd 9102/udp
bacula-sd 9103/tcp

Bacula Storage Daemon

bacula-sd 9103/udp
amanda 10080/tcp

amanda backup services

amanda 10080/udp
hkp 11371/tcp

OpenPGP HTTP Keyserver

hkp 11371/udp

OpenPGP HTTP Keyserver

bprd 13720/tcp


bprd 13720/udp
bpdbm 13721/tcp


bpdbm 13721/udp
bpjava-msvc 13722/tcp

BP Java MSVC Protocol

bpjava-msvc 13722/udp
vnetd 13724/tcp

Veritas Network Utility

vnetd 13724/udp
bpcd 13782/tcp


bpcd 13782/udp
vopied 13783/tcp


vopied 13783/udp
wnn6 22273/tcp


wnn6 22273/udp#

Datagram Delivery Protocol services

rtmp 1/ddp

Routing Table Maintenance Protocol

nbp 2/ddp

Name Binding Protocol

echo 4/ddp

AppleTalk Echo Protocol

zip 6/ddp

Zone Information Protocol


The remaining port numbers are not as allocated by IANA



(Project Athena/MIT) services

Note that these are for Kerberos v4

, and are unofficial. Sites running

v4 should uncomment these and comment out the v5 entries above

kerberos4 750/udp kerberos-iv kdc


kerberos4 750/tcp kerberos-iv kdc
kerberos_master 751/udp

Kerberos authentication

kerberos_master 751/tcp
passwd_server 752/udp

Kerberos passwd server

krb_prop 754/tcp krb5_prop hprop

Kerberos slave propagation

krbupdate 760/tcp kreg

Kerberos registration

swat 901/tcp


kpop 1109/tcp

Pop with Kerberos

knetd 2053/tcp

Kerberos de

zephyr-srv 2102/udp

Zephyr server

zephyr-clt 2103/udp

Zephyr serv

-hm connection
zephyr-hm 2104/udp

Zephyr hostmanager

eklogin 2105/tcp

Kerberos encrypted rlogin


. Are we using Kv4 or Kv5 now? Worrying.

The following is probably Kerberos v5

--- ajt@debian.org (11022000)
kx 2111/tcp

X over Kerberos

iprop 2121/tcp

incremental propagation


Unofficial but necessary

(for NetBSD) services
supfilesrv 871/tcp

SUP server

supfiledbg 1127/tcp

SUP debugging


Services added for the Debian GNU

/Linux distribution
linuxconf 98/tcp


poppassd 106/tcp


poppassd 106/udp
ssmtp 465/tcp smtps


moira_db 775/tcp

Moira database

moira_update 777/tcp

Moira update protocol

moira_ureg 779/udp

Moira user registration

spamd 783/tcp

spamassassin daemon

omirr 808/tcp omirrd

online mirror

omirr 808/udp omirrd
customs 1001/tcp

pmake customs server

customs 1001/udp
skkserv 1178/tcp

skk jisho server port

predict 1210/udp


-- satellite tracking
rmtcfg 1236/tcp

Gracilis Packeten remote config server

wipld 1300/tcp

Wipl network monitor

xtel 1313/tcp

french minitel

xtelw 1314/tcp

french minitel

support 1529/tcp


cfinger 2003/tcp

GNU Finger

frox 2121/tcp


: caching ftp proxy
ninstall 2150/tcp

ninstall service

ninstall 2150/udp
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

ospf6d 2606/tcp

ospf6d vty

ospfapi 2607/tcp


isisd 2608/tcp

ISISd vty

afbackup 2988/tcp

Afbackup system

afbackup 2988/udp
afmbackup 2989/tcp

Afmbackup system

afmbackup 2989/udp
xtell 4224/tcp

xtell server

fax 4557/tcp

FAX transmission service

hylafax 4559/tcp

HylaFAX client

-server protocol (new)
distmp3 4600/tcp

distmp3host daemon

munin 4949/tcp lrrd


enbd-cstatd 5051/tcp

ENBD client statd

enbd-sstatd 5052/tcp

ENBD server statd

pcrd 5151/tcp


-1000 Daemon
noclog 5354/tcp

noclogd with TCP

noclog 5354/udp

noclogd with UDP

hostmon 5355/tcp

hostmon uses TCP

hostmon 5355/udp

hostmon uses UDP

rplay 5555/udp

RPlay audio service

nsca 5667/tcp

Nagios Agent

mrtd 5674/tcp

MRT Routing Daemon

bgpsim 5675/tcp

MRT Routing Simulator

canna 5680/tcp


sane-port 6566/tcp sane saned

SANE network scanner daemon

ircd 6667/tcp

Internet Relay Chat

zope-ftp 8021/tcp

zope management by ftp

tproxy 8081/tcp

Transparent Proxy

omniorb 8088/tcp


omniorb 8088/udp
clc-build-daemon 8990/tcp

Common lisp build daemon

xinetd 9098/tcp
mandelspawn 9359/udp mandelbrot

network mandelbrot

git 9418/tcp

Git Version Control System

zope 9673/tcp

zope server

webmin 10000/tcp
kamanda 10081/tcp

amanda backup services

kamanda 10081/udp
amandaidx 10082/tcp

amanda backup services

amidxtape 10083/tcp

amanda backup services

smsqp 11201/tcp

Alamin SMS gateway

smsqp 11201/udp
xpilot 15345/tcp

XPilot Contact Port

xpilot 15345/udp
sgi-cmsd 17001/udp

Cluster membership services daemon

sgi-crsd 17002/udp
sgi-gcd 17003/udp

SGI Group membership daemon

sgi-cad 17004/tcp

Cluster Admin daemon

isdnlog 20011/tcp

isdn logging system

isdnlog 20011/udp
vboxd 20012/tcp

voice box system

vboxd 20012/udp
binkp 24554/tcp

binkp fidonet protocol

asp 27374/tcp

Address Search Protocol

asp 27374/udp
csync2 30865/tcp

cluster synchronization tool

dircproxy 57000/tcp

Detachable IRC Proxy

tfido 60177/tcp

fidonet EMSI over telnet

fido 60179/tcp

fidonet EMSI over TCP