Introduction to Data Communication for Linux Users
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TCP/IP Well Known Ports

Keyword 		Decimal 	Description
			0/tcp		Reserved
			0/udp		Reserved
tcpmux			1/tcp		TCP Port Service Multiplexer
tcpmux			1/udp		TCP Port Service Multiplexer
compressnet		2/tcp		Management Utility
compressnet		2/udp		Management Utility
compressnet		3/tcp		Compression Process
compressnet		3/udp		Compression Process
#			4/tcp		Unassigned
#			4/udp		Unassigned
rje			5/tcp		Remote Job Entry
rje			5/udp		Remote Job Entry
#			6/tcp   	Unassigned
#	 		6/udp	 	Unassigned
echo			7/tcp    	Echo
echo			7/udp    	Echo
#       		8/tcp    	Unassigned
#       		8/udp    	Unassigned
discard           	9/tcp    	Discard
discard           	9/udp    	Discard
#                	10/tcp    	Unassigned
#               	10/udp    	Unassigned
systat           	11/tcp    	Active Users
systat           	11/udp    	Active Users
#                	12/tcp    	Unassigned
#               	12/udp    	Unassigned
daytime          	13/tcp    	Daytime
daytime          	13/udp    	Daytime
#                	14/tcp    	Unassigned
#                	14/udp    	Unassigned
#                	15/tcp    	Unassigned [was netstat]
#                	15/udp   	Unassigned
#                	16/tcp    	Unassigned
#                	16/udp   	Unassigned
qotd             	17/tcp    	Quote of the Day
qotd             	17/udp    	Quote of the Day
msp              	18/tcp    	Message Send Protocol
msp              	18/udp    	Message Send Protocol
chargen          	19/tcp    	Character Generator
chargen          	19/udp    	Character Generator
ftp-data         	20/tcp    	File Transfer [Default Data]
ftp-data         	20/udp    	File Transfer [Default Data]
ftp              	21/tcp    	File Transfer [Control]
ftp              	21/udp    	File Transfer [Control]
#                	22/tcp    	Unassigned
#               	22/udp    	Unassigned
telnet           	23/tcp    	Telnet
telnet           	23/udp    	Telnet
                 	24/tcp    	any private mail system
                 	24/udp    	any private mail system
smtp             	25/tcp    	Simple Mail Transfer
smtp             	25/udp    	Simple Mail Transfer
#                	26/tcp    	Unassigned
#               	26/udp    	Unassigned
nsw-fe           	27/tcp    	NSW User System FE
nsw-fe           	27/udp    	NSW User System FE
#                	28/tcp    	Unassigned
#                	28/udp    	Unassigned
msg-icp          	29/tcp    	MSG ICP
msg-icp          	29/udp    	MSG ICP
#                	30/tcp    	Unassigned
#               	30/udp    	Unassigned
msg-auth         	31/tcp    	MSG Authentication
msg-auth         	31/udp    	MSG Authentication
#                	32/tcp    	Unassigned
#                	32/udp    	Unassigned
dsp              	33/tcp    	Display Support Protocol
dsp              	33/udp    	Display Support Protocol
#                	34/tcp    	Unassigned
#                	34/udp    	Unassigned
                 	35/tcp    	any private printer server
                 	35/udp    	any private printer server
#                	36/tcp    	Unassigned
#                	36/udp    	Unassigned
time             	37/tcp    	Time
time             	37/udp    	Time
rap              	38/tcp    	Route Access Protocol
rap             	38/udp    	Route Access Protocol
rlp              	39/tcp    	Resource Location Protocol
rlp              	39/udp    	Resource Location Protocol
#               	40/tcp    	Unassigned
#                	40/udp    	Unassigned
graphics         	41/tcp    	Graphics
graphics         	41/udp    	Graphics
nameserver       	42/tcp    	Host Name Server
nameserver      	42/udp   	Host Name Server
nicname          	43/tcp    	Who Is
nicname          	43/udp    	Who Is
mpm-flags        	44/tcp    	MPM FLAGS Protocol
mpm-flags        	44/udp    	MPM FLAGS Protocol
mpm              	45/tcp    	Msg  Process Module [recv]
mpm              	45/udp   	Msg Process Module [recv]
mpm-snd          	46/tcp    	MPM [default send]
mpm-snd          	46/udp    	MPM [default send]
ni-ftp           	47/tcp    	NI FTP
ni-ftp           	47/udp    	NI FTP
auditd           	48/tcp    	Digital Audit Daemon
auditd           	48/udp    	Digital Audit Daemon
login            	49/tcp    	Login Host Protocol
login            	49/udp    	Login Host Protocol
re-mail-ck       	50/tcp    	Rem Mail Checking Protocol
re-mail-ck       	50/udp    	Rem Mail Checking Protocol
la-maint         	51/tcp    	IMP Logical Addr Maint
la-maint         	51/udp    	IMP Logical Addr Maint
xns-time         	52/tcp    	XNS Time Protocol
xns-time         	52/udp    	XNS Time Protocol
domain           	53/tcp    	Domain Name Server
domain           	53/udp    	Domain Name Server
xns-ch           	54/tcp    	XNS Clearinghouse
xns-ch           	54/udp    	XNS Clearinghouse
isi-gl           	55/tcp    	ISI Graphics Language
isi-gl           	55/udp    	ISI Graphics Language
xns-auth         	56/tcp    	XNS Authentication
xns-auth         	56/udp    	XNS Authentication
                 	57/tcp    	any private terminal access
                 	57/udp    	any private terminal access
xns-mail         	58/tcp    	XNS Mail
xns-mail         	58/udp    	XNS Mail
                 	59/tcp    	any private file service
                 	59/udp    	any private file service 			60/tcp    	Unassigned
                 	60/udp    	Unassigned
ni-mail         	61/tcp    	NI MAIL
ni-mail          	61/udp    	NI MAIL
acas             	62/tcp    	ACA Services
acas             	62/udp    	ACA Services
#                	63/tcp    	Unassigned
#                	63/udp    	Unassigned
covia			64/tcp    	Comm Integrator (CI)
covia			64/udp    	Comm Integrator (CI)
tacacs-ds        	65/tcp    	TACACS-Database Service
tacacs-ds        	65/udp    	TACACS-Database Service
sql*net          	66/tcp    	Oracle SQL*NET
sql*net          	66/udp    	Oracle SQL*NET
bootps           	67/tcp    	Bootstrap Protocol Server
bootps           	67/udp    	Bootstrap Protocol Server
bootpc           	68/tcp    	Bootstrap Protocol Client
bootpc           	68/udp    	Bootstrap Protocol Client
tftp             	69/tcp    	Trivial File Transfer
tftp             	69/udp    	Trivial File Transfer
gopher           	70/tcp    	Gopher
gopher           	70/udp    	Gopher
netrjs-1         	71/tcp    	Remote Job Service
netrjs-1         	71/udp    	Remote Job Service
netrjs-2         	72/tcp    	Remote Job Service
netrjs-2         	72/udp    	Remote Job Service
netrjs-3         	73/tcp    	Remote Job Service
netrjs-3         	73/udp    	Remote Job Service
netrjs-4         	74/tcp    	Remote Job Service
netrjs-4         	74/udp    	Remote Job Service
                 	75/tcp    	any private dial out service
                 	75/udp    	any private dial out service
deos             	76/tcp    	Distributed Ext Object Store
deos             	76/udp    	Distributed Ext Object Store
                 	77/tcp    	any private RJE service
                 	77/udp    	any private RJE service
vettcp           	78/tcp    	vettcp
vettcp           	78/udp    	vettcp
finger           	79/tcp    	Finger
finger           	79/udp    	Finger
www-http         	80/tcp    	World Wide Web HTTP
www-http         	80/udp    	World Wide Web HTTP
hosts2-ns        	81/tcp    	HOSTS2 Name Server
hosts2-ns        	81/udp    	HOSTS2 Name Server
xfer             	82/tcp    	XFER Utility
xfer             	82/udp    	XFER Utility
mit-ml-dev       	83/tcp    	MIT ML Device
mit-ml-dev       	83/udp    	MIT ML Device
ctf              	84/tcp    	Common Trace Facility
ctf              	84/udp    	Common Trace Facility
mit-ml-dev       	85/tcp    	MIT ML Device
mit-ml-dev       	85/udp    	MIT ML Device
mfcobol          	86/tcp    	Micro Focus Cobol
mfcobol          	86/udp    	Micro Focus Cobol
                 	87/tcp    	any private terminal link
                 	87/udp    	any private terminal link
kerberos         	88/tcp    	Kerberos
kerberos         	88/udp    	Kerberos
su-mit-tg        	89/tcp    	SU/MIT Telnet Gateway
su-mit-tg        	89/udp    	SU/MIT Telnet Gateway
dnsix            	90/tcp    	DNSIX Securit Attrib Tok Map
dnsix            	90/udp    	DNSIX Securit Attrib Tok Map
mit-dov          	91/tcp    	MIT Dover Spooler
mit-dov          	91/udp    	MIT Dover Spooler
npp              	92/tcp    	Network Printing Protocol
npp              	92/udp    	Network Printing Protocol
dcp              	93/tcp    	Device Control Protocol
dcp              	93/udp    	Device Control Protocol
objcall          	94/tcp    	Tivoli Object Dispatcher
objcall          	94/udp    	Tivoli Object Dispatcher
supdup           	95/tcp    	SUPDUP
supdup           	95/udp    	SUPDUP
dixie            	96/tcp    	DIXIE Protocol Specification
dixie            	96/udp    	DIXIE Protocol Specification
swift-rvf        	97/tcp    	Swift Rem Vitural File Protocol
swift-rvf        	97/udp   	Swift Rem Vitural File Protocol
tacnews          	98/tcp    	TAC News
tacnews          	98/udp    	TAC News
metagram         	99/tcp    	Metagram Relay
metagram         	99/udp    	Metagram Relay
newacct         	100/tcp    	[unauthorized use]
hostname        	101/tcp    	NIC Host Name Server
hostname        	101/udp    	NIC Host Name Server
iso-tsap        	102/tcp    	ISO-TSAP
iso-tsap        	102/udp    	ISO-TSAP
gppitnp         	103/tcp    	Genesis Pt-to-Pt Trans Net
gppitnp         	103/udp    	Genesis Pt-to-Pt Trans Net
acr-nema        	104/tcp    	ACR-NEMA
acr-nema        	104/udp    	ACR-NEMA
csnet-ns        	105/tcp    	Mailbox Name Nameserver
csnet-ns        	105/udp    	Mailbox Name Nameserver
3com-tsmux     		106/tcp    	3COM-TSMUX
3com-tsmux     		106/udp    	3COM-TSMUX
rtelnet         	107/tcp    	Remote Telnet Service
rtelnet         	107/udp    	Remote Telnet Service
snagas          	108/tcp    	SNA Gateway Access Server
snagas          	108/udp    	SNA Gateway Access Server
pop2            	109/tcp    	Post Office Protocol - Ver 2
pop2            	109/udp    	Post Office Protocol - Ver 2
pop3            	110/tcp    	Post Office Protocol - Ver 3
pop3            	110/udp    	Post Office Protocol - Ver 3
sunrpc          	111/tcp    	SUN Rem Procedure Call
sunrpc          	111/udp    	SUN Rem Procedure Call
mcidas          	112/tcp    	McIDAS Data Trans Protocol
mcidas          	112/udp    	McIDAS Data Trans Protocol
auth            	113/tcp    	Authentication Service
auth            	113/udp    	Authentication Service
audionews       	114/tcp    	Audio News Multicast
audionews       	114/udp    	Audio News Multicast
sftp            	115/tcp    	Simple File Transfer Protocol
sftp            	115/udp    	Simple File Transfer Protocol
ansanotify      	116/tcp    	ANSA REX Notify
ansanotify      	116/udp    	ANSA REX Notify
uucp-path       	117/tcp    	UUCP Path Service
uucp-path       	117/udp    	UUCP Path Service
sqlserv         	118/tcp    	SQL Services
sqlserv         	118/udp    	SQL Services
nntp            	119/tcp    	Network News Transfer 
nntp            	119/udp    	Network News Transfer 
cfdptkt         	120/tcp    	CFDPTKT
cfdptkt         	120/udp    	CFDPTKT
erpc            	121/tcp    	Encore Expedited RPC
erpc            	121/udp    	Encore Expedited RPC
smakynet        	122/tcp    	SMAKYNET
smakynet        	122/udp    	SMAKYNET
ntp             	123/tcp    	Network Time Protocol
ntp             	123/udp    	Network Time Protocol
ansatrader      	124/tcp    	ANSA REX Trader
ansatrader      	124/udp    	ANSA REX Trader
locus-map       	125/tcp    	Locus PC-Inter Net Map Ser
locus-map       	125/udp    	Locus PC-Inter Net Map Ser
unitary         	126/tcp    	Unisys Unitary Login
unitary         	126/udp    	Unisys Unitary Login
locus-con       	127/tcp    	Locus PC-Inter Conn Server
locus-con       	127/udp    	Locus PC-Inter Conn Server
gss-xlicen      	128/tcp    	GSS X License Verification
gss-xlicen      	128/udp    	GSS X License Verification
pwdgen          	129/tcp    	Password Generator Protocol
pwdgen          	129/udp    	Password Generator Protocol
cisco-fna       	130/tcp    	cisco FNATIVE
cisco-fna       	130/udp    	cisco FNATIVE
cisco-tna       	131/tcp    	cisco TNATIVE
cisco-tna       	131/udp    	cisco TNATIVE
cisco-sys       	132/tcp    	cisco SYSMAINT
cisco-sys       	132/udp    	cisco SYSMAINT
statsrv         	133/tcp    	Statistics Service
statsrv         	133/udp    	Statistics Service
ingres-net      	134/tcp    	INGRES-NET Service
ingres-net      	134/udp    	INGRES-NET Service
loc-srv         	135/tcp    	Location Service
loc-srv         	135/udp    	Location Service
profile         	136/tcp    	ROFILE Naming System
profile         	136/udp    	PROFILE Naming System
netbios-ns      	137/tcp    	NETBIOS Name Service
netbios-ns      	137/udp    	NETBIOS Name Service
netbios-dgm     	138/tcp    	NETBIOS Datagram Service
netbios-dgm     	138/udp    	NETBIOS Datagram Service
netbios-ssn     	139/tcp    	NETBIOS Session Service
netbios-ssn     	139/udp    	NETBIOS Session Service
emfis-data      	140/tcp    	EMFIS Data Service
emfis-data      	140/udp    	EMFIS Data Service
emfis-cntl      	141/tcp    	EMFIS Control Service
emfis-cntl      	141/udp    	EMFIS Control Service
bl-idm          	142/tcp    	Britton-Lee IDM
bl-idm          	142/udp    	Britton-Lee IDM
imap2           	143/tcp   	Interim Mail Access  v2
imap2           	143/udp    	Interim Mail Access  v2
news            	144/tcp    	NewS
news            	144/udp    	NewS
uaac            	145/tcp    	UAAC Protocol
uaac            	145/udp    	UAAC Protocol
iso-tp0         	146/tcp    	ISO-IP0
iso-tp0         	146/udp    	ISO-IP0
iso-ip          	147/tcp    	ISO-IP
iso-ip          	147/udp    	ISO-IP
cronus          	148/tcp    	CRONUS-SUPPORT
cronus          	148/udp    	CRONUS-SUPPORT
aed-512         	149/tcp    	AED 512 Emulation Service
aed-512         	149/udp    	AED 512 Emulation Service
sql-net         	150/tcp    	SQL-NET
sql-net         	150/udp    	SQL-NET
hems            	151/tcp    	HEMS
hems            	151/udp    	HEMS
bftp            	152/tcp    	Background ftp
bftp            	152/udp    	Background ftp
sgmp            	153/tcp   	SGMP
sgmp            	153/udp    	SGMP
netsc-prod      	154/tcp    	NETSC
netsc-prod      	154/udp    	NETSC
netsc-dev       	155/tcp    	NETSC
netsc-dev       	155/udp    	NETSC
sqlsrv          	156/tcp    	SQL Service
sqlsrv          	156/udp    	SQL Service
knet-cmp        	157/tcp    	KNET/VM Com/Msg Protocol
knet-cmp        	157/udp    	KNET/VM Com/Msg Protocol
pcmail-srv      	158/tcp    	PCMail Server
pcmail-srv      	158/udp    	PCMail Server
nss-routing     	159/tcp    	NSS-Routing
nss-routing     	159/udp    	NSS-Routing
sgmp-traps      	160/tcp    	SGMP-TRAPS
sgmp-traps      	160/udp    	SGMP-TRAPS
snmp            	161/tcp    	SNMP
snmp            	161/udp    	SNMP
snmptrap        	162/tcp    	SNMPTRAP
snmptrap        	162/udp    	SNMPTRAP
cmip-man        	163/tcp    	CMIP/TCP Manager
cmip-man        	163/udp    	CMIP/TCP Manager
cmip-agent      	164/tcp    	CMIP/TCP Agent
smip-agent      	164/udp    	CMIP/TCP Agent
xns-courier     	165/tcp    	Xerox
xns-courier     	165/udp    	Xerox
s-net           	166/tcp    	Sirius Systems
s-net           	166/udp    	Sirius Systems
namp            	167/tcp    	NAMP
namp            	167/udp    	NAMP
rsvd            	168/tcp    	RSVD
rsvd            	168/udp    	RSVD
send            	169/tcp    	SEND
send            	169/udp    	SEND
print-srv       	170/tcp    	Network PostScript
print-srv       	170/udp    	Network PostScript
multiplex       	171/tcp    	Network Innovations Multiplex
multiplex       	171/udp    	Network Innovations Multiplex
cl/1            	172/tcp    	Network Innovations CL/1
cl/1            	172/udp    	Network Innovations CL/1
xyplex-mux      	173/tcp    	Xyplex
xyplex-mux      	173/udp    	Xyplex
mailq           	174/tcp    	MAILQ
mailq           	174/udp    	MAILQ
vmnet           	175/tcp    	VMNET
vmnet           	175/udp    	VMNET
genrad-mux 		176/tcp    	GENRAD-MUX
genrad-mux		176/udp    	GENRAD-MUX
xdmcp           	177/tcp    	X Display Manager Control 
xdmcp           	177/udp    	X Display Manager Control 
nextstep        	178/tcp    	NextStep Window Server
NextStep        	178/udp    	NextStep Window Server
bgp             	179/tcp    	Border Gateway Protocol
bgp             	179/udp    	Border Gateway Protocol
ris             	180/tcp    	Intergraph
ris             	180/udp    	Intergraph
unify           	181/tcp    	Unify
unify           	181/udp    	Unify
audit           	182/tcp    	Unisys Audit SITP
audit           	182/udp    	Unisys Audit SITP
ocbinder        	183/tcp    	OCBinder
ocbinder        	183/udp    	OCBinder
ocserver        	184/tcp    	OCServer
ocserver        	184/udp    	OCServer
remote-kis      	185/tcp    	Remote-KIS
remote-kis      	185/udp    	Remote-KIS
kis             	186/tcp    	KIS Protocol
kis             	186/udp    	KIS Protocol
aci             	187/tcp    	Application Comm Interface
aci             	187/udp    	Application Com Interface
mumps           	188/tcp    	Plus Five's MUMPS
mumps           	188/udp    	Plus Five's MUMPS
qft             	189/tcp    	Queued File Transport
qft             	189/udp    	Queued File Transport
gacp            	190/tcp    	Gateway Access Ctrl Protocol
cacp            	190/udp   	Gateway Access Ctrl Protocol
prospero        	191/tcp    	Prospero Directory Service
prospero        	191/udp    	Prospero Directory Service
osu-nms         	192/tcp    	OSU Network Mon System
osu-nms         	192/udp    	OSU Network Mon System
srmp            	193/tcp    	Spider Rem Mon Protocol
srmp            	193/udp    	Spider Rem Mon Protocol
irc             	194/tcp    	Internet Relay Chat Protocol
irc             	194/udp    	Internet Relay Chat Protocol
dn6-nlm-aud 		195/tcp    	DNSIX Net Level Mod Audit
dn6-nlm-aud 		195/udp    	DNSIX Net Level Mod Audit
dn6-smm-red 		196/tcp    	DNSIX Sess Mgt Mod Aud Red
dn6-smm-red 		196/udp    	DNSIX Sess Mgt Mod Aud Red
dls             	197/tcp    	Directory Location Service
dls             	197/udp    	Directory Location Service
dls-mon         	198/tcp    	Directory Location Service Mon
dls-mon         	198/udp    	Directory Location Service Mon
smux            	199/tcp    	SMUX
smux            	199/udp    	SMUX
src             	200/tcp    	IBM Sys Resource Controller
src             	200/udp    	IBM Sys Resource Controller
at-rtmp         	201/tcp    	AppleTalk Routing Maint
at-rtmp         	201/udp    	AppleTalk Routing Maint
at-nbp          	202/tcp    	AppleTalk Name Binding
at-nbp          	202/udp    	AppleTalk Name Binding
at-3            	203/tcp    	AppleTalk Unused
at-3            	203/udp    	AppleTalk Unused
at-echo         	204/tcp    	AppleTalk Echo
at-echo         	204/udp    	AppleTalk Echo
at-5            	205/tcp    	AppleTalk Unused
at-5            	205/udp    	AppleTalk Unused
at-zis          	206/tcp    	AppleTalk Zone Information
at-zis          	206/udp    	AppleTalk Zone Information
at-7            	207/tcp    	AppleTalk Unused
at-7            	207/udp    	AppleTalk Unused
at-8            	208/tcp    	AppleTalk Unused
at-8            	208/udp    	AppleTalk Unused
tam             	209/tcp    	Trivial Auth Mail Protocol
tam             	209/udp   	Trivial Auth Mail Protocol
z39.50          	210/tcp    	ANSI Z39.50
z39.50          	210/udp    	ANSI Z39.50
914c/g          	211/tcp    	TI 914C/G Terminal
914c/g         	 	211/udp    	TI 914C/G Terminal
anet            	212/tcp    	ATEXSSTR
anet            	212/udp    	ATEXSSTR
ipx             	213/tcp    	IPX
ipx             	213/udp    	IPX
vmpwscs         	214/tcp    	VM PWSCS
vmpwscs         	214/udp    	VM PWSCS
softpc          	215/tcp    	Insignia Solutions
softpc          	215/udp    	Insignia Solutions
atls            	216/tcp    	Access Tech License Server
atls            	216/udp    	Access Tech License Server
dbase           	217/tcp    	dBASE Unix
dbase           	217/udp    	dBASE Unix
mpp             	218/tcp    	Netix Message Posting Protocol
mpp             	218/udp    	Netix Message Posting Protocol
uarps           	219/tcp    	Unisys ARPs
uarps           	219/udp    	Unisys ARPs
imap3           	220/tcp    	IMAP3
imap3           	220/udp    	IMAP3
fln-spx         	221/tcp    	Berkeley rlogind with SPX auth
fln-spx        		221/udp    	Berkeley rlogind with SPX auth
rsh-spx        		222/tcp    	Berkeley rshd with SPX auth
rsh-spx         	222/udp    	Berkeley rshd with SPX auth
cdc             	223/tcp    	Certificate Distribution Center
cdc             	223/udp    	Certificate Distribution Center
#               	224-241    	Reserved
#              		242/tcp    	Unassigned
#              		242/udp    	Unassigned
sur-meas        	243/tcp    	Survey Measurement
sur-meas        	243/udp    	Survey Measurement
#               	244/tcp    	Unassigned
#               	244/udp    	Unassigned
link            	245/tcp    	LINK
link            	245/udp    	LINK
dsp3270         	246/tcp    	Display Systems Protocol
dsp3270         	246/udp    	Display Systems Protocol
#               	247-255    	Reserved
#               	256-343    	Unassigned
pdap            	344/tcp    	Prospero Data Access Protocol
pdap            	344/udp    	Prospero Data Access Protocol
pawserv         	345/tcp    	Perf Analysis Workbench
pawserv        		345/udp    	Perf Analysis Workbench
zserv           	346/tcp    	Zebra server
zserv           	346/udp    	Zebra server
fatserv         	347/tcp    	Fatmen Server
fatserv         	347/udp    	Fatmen Server
csi-sgwp        	348/tcp    	Cabletron Mgnt Protocol
csi-sgwp        	348/udp    	Cabletron Mgnt Protocol
#               	349-370    	Unassigned
clearcase       	371/tcp    	Clearcase
clearcase       	371/udp    	Clearcase
ulistserv       	372/tcp    	Unix Listserv
ulistserv       	372/udp    	Unix Listserv
legent-1        	373/tcp    	Legent Corporation
legent-1        	373/udp    	Legent Corporation
legent-2        	374/tcp    	Legent Corporation
legent-2        	374/udp    	Legent Corporation
hassle          	375/tcp    	Hassle
hassle          	375/udp    	Hassle
nip             	376/tcp    	Amiga Envoy Net Inquiry Proto
nip             	376/udp    	Amiga Envoy Net Inquiry Proto
tnETOS          	377/tcp    	NEC Corporation
tnETOS          	377/udp    	NEC Corporation
dsETOS          	378/tcp    	NEC Corporation
dsETOS          	378/udp    	NEC Corporation
is99c           	379/tcp    	TIA/EIA/IS-99 modem client
is99c           	379/udp    	TIA/EIA/IS-99 modem client
is99s           	380/tcp    	TIA/EIA/IS-99 modem server
is99s           	380/udp    	TIA/EIA/IS-99 modem server
hp-collector    	381/tcp    	hp perf data collector
hp-collector    	381/udp    	hp perf data collector
hp-mngd-node 		382/tcp    	hp perf data managed node
hp-mngd-node 		382/udp    	hp perf data managed node
hp-alarm-mgr		383/tcp    	hp perf data alarm manager
hp-alarm-mgr		383/udp    	hp perf data alarm manager
arns            	384/tcp    	A Rem Network Server System
arns            	384/udp    	A Rem Network Server System
ibm-app         	385/tcp   	IBM Application
ibm-app         	385/udp    	IBM Application
asa             	386/tcp    	ASA Message Rout Object Def.
asa             	386/udp    	ASA Message Rout Object Def.
aurp            	387/tcp    	Apple Update-Based Rout Pro.
aurp            	387/udp    	Apple Update-Based Rout Pro.
unidata-ldm     	388/tcp    	Unidata LDM Version 4
unidata-ldm     	388/udp    	Unidata LDM Version 4
ldap            	389/tcp   	Lightweight Dir Access Prot
ldap            	389/udp    	Lightweight Diry Access Prot
uis             	390/tcp    	UIS
uis             	390/udp    	UIS
synotics-relay  	391/tcp    	SynOptics SNMP Relay Port
synotics-relay  	391/udp    	SynOptics SNMP Relay Port
synotics-broker 	392/tcp    	SynOptics Port Broker Port
synotics-broker 	392/udp    	SynOptics Port Broker Port
dis             	393/tcp    	Data Interpretation System
dis             	393/udp    	Data Interpretation System
embl-ndt        	394/tcp    	EMBL Nucleic Data Transfer
embl-ndt        	394/udp    	EMBL Nucleic Data Transfer
netcp           	395/tcp    	NETscout Control Protocol
netcp           	395/udp    	NETscout Control Protocol
netware-ip      	396/tcp    	Novell Netware over IP
netware-ip      	396/udp    	Novell Netware over IP
mptn            	397/tcp    	Multi Protocol Trans. Net.
mptn            	397/udp    	Multi Protocol Trans. Net.
kryptolan       	398/tcp    	Kryptolan
kryptolan       	398/udp    	Kryptolan
#               	399/tcp    	Unassigned
#               	399/udp    	Unassigned
work-sol       	 	400/tcp    	Workstation Solutions
work-sol        	400/udp    	Workstation Solutions
ups             	401/tcp    	Uninterruptible Power Supply
ups             	401/udp    	Uninterruptible Power Supply
genie           	402/tcp    	Genie Protocol
genie           	402/udp    	Genie Protocol
decap           	403/tcp    	decap
decap           	403/udp    	decap
nced            	404/tcp    	nced
nced            	404/udp    	nced
ncld            	405/tcp    	ncld
ncld            	405/udp    	ncld
imsp            	406/tcp    	Interactive Mail Support Prot
imsp            	406/udp    	Interactive Mail Support Prot
timbuktu        	407/tcp    	Timbuktu
timbuktu        	407/udp    	Timbuktu
prm-sm          	408/tcp    	Prospero Res Mgr Sys. Man.
prm-sm          	408/udp    	Prospero Res Mgr Sys. Man.
prm-nm          	409/tcp    	Prospero Res Mgr Node Man.
prm-nm          	409/udp    	Prospero Res Mgr Node Man.
decladebug		410/tcp    	DECLadebug Rem Debug Prot
decladebug		410/udp    	DECLadebug Rem Debug Prot
rmt             	411/tcp    	Remote MT Protocol
rmt             	411/udp    	Remote MT Protocol
synoptics-trap  	412/tcp    	Trap Convention Port
synoptics-trap  	412/udp    	Trap Convention Port
smsp            	413/tcp    	SMSP
smsp            	413/udp    	SMSP
infoseek        	414/tcp    	InfoSeek
infoseek        	414/udp    	InfoSeek
bnet            	415/tcp    	BNet
bnet            	415/udp    	BNet
silverplatter   	416/tcp    	Silverplatter
silverplatter   	416/udp    	Silverplatter
onmux           	417/tcp    	Onmux
onmux           	417/udp    	Onmux
hyper-g         	418/tcp    	Hyper-G
hyper-g         	418/udp    	Hyper-G
ariel1          	419/tcp    	Ariel
ariel1          	419/udp    	Ariel
smpte           	420/tcp    	SMPTE
smpte           	420/udp    	SMPTE
ariel2          	421/tcp    	Ariel
ariel2          	421/udp    	Ariel
ariel3          	422/tcp    	Ariel
ariel3          	422/udp    	Ariel
opc-job-start   	423/tcp  	IBM Op Plan & Control Start
opc-job-start   	423/udp    	IBM Op Plan & Control Start
opc-job-track   	424/tcp    	IBM Op Plan & Control Track
opc-job-track   	424/udp   	IBM Op Plan & Control Track
icad-el         	425/tcp    	ICAD
icad-el         	425/udp    	ICAD
smartsdp        	426/tcp    	smartsdp
smartsdp        	426/udp    	smartsdp
svrloc          	427/tcp    	Server Location
svrloc          	427/udp    	Server Location
ocs_cmu         	428/tcp    	OCS_CMU
ocs_cmu         	428/udp    	OCS_CMU
ocs_amu         	429/tcp    	OCS_AMU
ocs_amu         	429/udp    	OCS_AMU
utmpsd          	430/tcp    	UTMPSD
utmpsd          	430/udp    	UTMPSD
utmpcd          	431/tcp    	UTMPCD
utmpcd          	431/udp    	UTMPCD
iasd            	432/tcp    	IASD
iasd            	432/udp    	IASD
nnsp            	433/tcp    	NNSP
nnsp            	433/udp    	NNSP
mobileip-agent		434/tcp    	MobileIP-Agent
mobileip-agent		434/udp    	MobileIP-Agent
mobilip-mn 		435/tcp    	MobilIP-MN
mobilip-mn 		435/udp    	MobilIP-MN
dna-cml         	436/tcp    	DNA-CML
dna-cml         	436/udp    	DNA-CML
comscm          	437/tcp    	comscm
comscm          	437/udp    	comscm
dsfgw           	438/tcp    	dsfgw
dsfgw           	438/udp    	dsfgw
dasp            	439/tcp    	dasp      
dasp            	439/udp    	dasp      
sgcp            	440/tcp    	sgcp
sgcp            	440/udp    	sgcp
vms-sysmgt   		441/tcp    	decvms-sysmgt
vms-sysmgt   		441/udp    	decvms-sysmgt
cvc_hostd       	442/tcp    	cvc_hostd
cvc_hostd       	442/udp    	cvc_hostd
https           	443/tcp    	https  MCom
https           	443/udp    	https  MCom
snpp            	444/tcp    	Simple Net Paging Protocol
snpp            	444/udp    	Simple Net Paging Protocol
microsoft-ds    	445/tcp    	Microsoft-DS
microsoft-ds    	445/udp    	Microsoft-DS
ddm-rdb         	446/tcp    	DDM-RDB
ddm-rdb         	446/udp    	DDM-RDB
ddm-dfm         	447/tcp    	DDM-RFM
ddm-dfm         	447/udp    	DDM-RFM
ddm-byte        	448/tcp    	DDM-BYTE
ddm-byte        	448/udp    	DDM-BYTE
as-servermap		449/tcp    	AS Server Mapper
as-servermap		449/udp    	AS Server Mapper
tserver         	450/tcp    	TServer
tserver         	450/udp    	TServer
#               	451-511    	Unassigned
exec            	512/tcp    	remote process execution;
biff            	512/udp    	mail system notification 		
login           	513/tcp    	remote login a la telnet;
who             	513/udp    	shows who's logged in
cmd             	514/tcp    	like exec, but auto auth
syslog          	514/udp
printer         	515/tcp    	spooler
printer         	515/udp    	spooler
#               	516/tcp    	Unassigned
#               	516/udp    	Unassigned
talk            	517/tcp    	talk
talk            	517/udp    	talk
ntalk           	518/tcp
ntalk           	518/udp
utime           	519/tcp    	unixtime
utime           	519/udp    	unixtime
efs             	520/tcp    	extended file name server
router          	520/udp    	local routing process (on site);
#               	521-524    	Unassigned
timed           	525/tcp    	timeserver
timed           	525/udp    	timeserver
tempo           	526/tcp    	newdate
tempo           	526/udp    	newdate
#               	527-529    	Unassigned
courier         	530/tcp    	rpc
courier         	530/udp    	rpc
conference      	531/tcp    	chat
conference      	531/udp    	chat
netnews         	532/tcp    	readnews
netnews         	532/udp    	readnews
netwall         	533/tcp    	for emergency broadcasts
netwall         	533/udp    	for emergency broadcasts
#               	534-538    	Unassigned
apertus-ldp     	539/tcp    	Apertus Tech Load Determ
apertus-ldp     	539/udp    	Apertus Tech Load Determ
uucp            	540/tcp    	uucpd
uucp            	540/udp    	uucpd
uucp-rlogin     	541/tcp    	uucp-rlogin 
uucp-rlogin     	541/udp    	uucp-rlogin
#               	542/tcp    	Unassigned
#               	542/udp    	Unassigned
klogin          	543/tcp
klogin          	543/udp
kshell          	544/tcp    	krcmd
kshell          	544/udp    	krcmd
#               	545-549    	Unassigned
new-rwho		550/tcp    	new-who
new-rwho 		550/udp    	new-who
#               	551-555    	Unassigned
dsf             	555/tcp
dsf             	555/udp
remotefs        	556/tcp    	rfs server
remotefs        	556/udp    	rfs server
#               	557-559    	Unassigned
rmonitor        	560/tcp    	rmonitord
rmonitor        	560/udp    	rmonitord
monitor         	561/tcp
monitor         	561/udp
chshell         	562/tcp    	chcmd
chshell         	562/udp    	chcmd
#               	563/tcp    	Unassigned
#               	563/udp    	Unassigned
9pfs            	564/tcp    	plan 9 file service
9pfs            	564/udp    	plan 9 file service
whoami          	565/tcp    	whoami
whoami          	565/udp    	whoami
#               	566-569    	Unassigned
meter           	570/tcp    	demon
meter           	570/udp    	demon
meter           	571/tcp    	udemon
meter           	571/udp    	udemon
#               	572-599    	Unassigned
ipcserver       	600/tcp    	Sun IPC server
ipcserver       	600/udp    	Sun IPC server
nqs             	607/tcp    	nqs
nqs             	607/udp    	nqs
urm             	606/tcp    	Cray Unified Resource Manager
urm             	606/udp    	Cray Unified Resource Manager
sift-uft        	608/tcp    	Sender-Init/Unsol File Trans
sift-uft        	608/udp    	Sender-Init/Unsol File Trans
npmp-trap       	609/tcp    	npmp-trap
npmp-trap       	609/udp    	npmp-trap
npmp-local      	610/tcp    	npmp-local
npmp-local      	610/udp    	npmp-local
npmp-gui        	611/tcp    	npmp-gui
npmp-gui        	611/udp    	npmp-gui
ginad           	634/tcp    	ginad
ginad           	634/udp    	ginad
mdqs            	666/tcp
mdqs           		666/udp
doom            	666/tcp    	doom Id Software
doom           		666/udp    	doom Id Software
elcsd           	704/tcp    	errlog copy/server daemon
elcsd           	704/udp    	errlog copy/server daemon
entrustmgr 		709/tcp    	EntrustManager
entrustmgr  		709/udp    	EntrustManager
netviewdm1		729/tcp    	IBM NV DM/6000 Srvr/Client
netviewdm1		729/udp    	IBM NV DM/6000 Srvr/Client
netviewdm2		730/tcp    	IBM NV DM/6000 send/tcp
netviewdm2		730/udp    	IBM NV DM/6000 send/tcp
netviewdm3		731/tcp    	IBM NV DM/6000 receive/tcp
netviewdm3		731/udp    	IBM NV DM/6000 receive/tcp
netgw           	741/tcp    	netGW
netgw           	741/udp    	netGW
netrcs          	742/tcp    	Network based Rev. Cont. Sys.
netrcs          	742/udp    	Network based Rev. Cont. Sys.
flexlm         		744/tcp    	Flexible License Manager
flexlm          	744/udp   	Flexible License Manager
fujitsu-dev     	747/tcp    	Fujitsu Device Control
fujitsu-dev     	747/udp    	Fujitsu Device Control
ris-cm          	748/tcp    	Russell Info Sci Calendar Mgr
ris-cm          	748/udp    	Russell Info Sci Calendar Mgr
kerberos-adm		749/tcp    	kerberos administration
kerberos-adm		749/udp    	kerberos administration
rfile           	750/tcp
loadav          	750/udp
pump            	751/tcp
pump            	751/udp
qrh             	752/tcp
qrh             	752/udp
rrh             	753/tcp
rrh             	753/udp
tell            	754/tcp     	send
tell            	754/udp     	send
nlogin          	758/tcp
nlogin          	758/udp
con             	759/tcp
con             	759/udp
ns              	760/tcp
ns              	760/udp
rxe            		761/tcp
rxe             	761/udp
quotad          	762/tcp
quotad         		762/udp
cycleserv       	763/tcp
cycleserv       	763/udp
omserv          	764/tcp
omserv          	764/udp
webster         	765/tcp
webster         	765/udp
phonebook 		767/tcp    	phone
phonebook		767/udp    	phone
vid             	769/tcp
vid             	769/udp
cadlock         	770/tcp
cadlock         	770/udp
rtip 			771/tcp
rtip            	771/udp
cycleserv2      	772/tcp
cycleserv2      	772/udp
submit          	773/tcp
notify          	773/udp
rpasswd         	774/tcp
acmaint_dbd		774/udp
entomb          	775/tcp
acmaint_transd		775/udp
wpages          	776/tcp
wpages          	776/udp
wpgs            	780/tcp
wpgs            	780/udp
concert         	786/tcp       	Concert
concert         	786/udp       	Concert
mdbs_daemon		800/tcp
mdbs_daemon		800/udp
device          	801/tcp
device 			801/udp
xtreelic        	996/tcp        	Central Point Software
xtreelic        	996/udp        	Central Point Software
maitrd          	997/tcp
maitrd          	997/udp
busboy          	998/tcp
puparp          	998/udp
garcon          	999/tcp
applix          	999/udp        	Applix ac
puprouter       	999/tcp
puprouter       	999/udp
cadlock         	1000/tcp
ock             	1000/udp
                	1023/tcp	Reserved
                	1024/udp	Reserved


Introduction to Data Communication for Linux Users
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