TCP and UDP Port Numbers
Posted by Anandhan Subbiah on Mar 18, 2008 in Programming Concepts, Technical Articles • No commentsTCP and UDP are both transport protocols above the IP layer, which are interfaces between IP and upper-layer processes. TCP and UDP protocol port numbers are designed to distinguish multiple applications running on a single device with one IP address from one another.
Port No
|
Port No. |
Protocol |
Service Name |
Aliases |
Comment |
|
1 |
TCP |
tcpmux |
|
TCP Port Service Multiplexer |
|
2 |
TCP/UDP |
compressnet |
|
Management Utility |
|
3 |
TCP/UPD |
compressnet |
|
Compression Process |
|
7 |
TCP/UDP |
echo |
|
Echo |
|
13 |
TCP/UDP |
daytime |
|
Daytime |
|
19 |
TCP/UDP |
chargen |
ttytst source |
Character generator |
|
20 |
TCP |
ftp-data |
|
File Transfer |
|
21 |
TCP |
ftp |
|
FTP Control |
|
22 |
TCP |
ssh |
|
SSH remote login protocol |
|
23 |
TCP |
telnet |
|
Telnet |
|
25 |
TCP |
smtp |
|
Simple Mail Transfer |
|
37 |
TCP/UDP |
Time |
|
Time |
|
39 |
UDP |
RLP |
resource |
Resource Location Protocol |
|
42 |
TCP/UDP |
nameserver |
name |
Host Name Server |
|
43 |
TCP |
nicname |
whois |
Who Is |
|
49 |
UDP |
TACACS |
|
TACACS: Login Host Protocol |
|
53 |
TCP/UDP |
domain |
DNS |
Domain Name Server |
|
67 |
UDP |
bootps |
dhcps |
Bootstrap Protocol Server |
|
68 |
UDP |
bootpc |
dhcpc |
Bootstrap Protocol Client |
|
69 |
UDP |
TFTP |
|
Trivial File Transfer Protocol |
|
70 |
TCP |
gopher |
|
Gopher |
|
79 |
TCP/UDP |
finger |
|
Finger |
|
80 |
TCP/UDP |
http |
www, http |
World Wide Web |
|
88 |
TCP/UDP |
kerberos |
krb5 |
Kerberos |
|
101 |
TCP |
hostname |
hostnames |
NIC Host Name Server |
|
102 |
TCP |
iso-tsap |
|
ISO-TSAP Class 0 |
|
107 |
TCP |
rtelnet |
|
Remote Telnet Service |
|
110 |
TCP |
Pop3 |
postoffice |
Post Office Protocol - Version 3 |
|
111 |
TCP/UDP |
sunrpc |
rpcbind portmap |
SUN Remote Procedure Call |
|
113 |
TCP |
Auth |
ident tap |
Authentication Sevice |
|
117 |
TCP |
Uucp-path |
|
UUCP Path Service |
|
118 |
TCP |
sqlserv |
|
SQL Services |
|
119 |
TCP |
nntp |
usenet |
Network News Transfer Protocol |
|
123 |
UDP |
Ntp |
|
Network Time Protocol |
|
135 |
TCP/UDP |
epmap |
loc-srv |
DCE endpoint resolution |
|
137 |
TCP/UDP |
netbios-ns |
nbname |
NETBIOS Name Service |
|
138 |
UDP |
netbios-dgm |
nbdatagram |
NETBIOS Datagram Service |
|
139 |
TCP |
netbios-ssn |
nbsession |
NETBIOS Session Service |
|
143 |
TCP |
Imap |
imap4 |
Internet Message Access Protocol |
|
158 |
TCP |
pcmail-srv |
repository |
PC Mail Server |
|
161 |
UDP |
snmp |
snmp |
SNMP |
|
162 |
UDP |
snmptrap |
snmp-trap |
SNMP TRAP |
|
170 |
TCP |
Print-srv |
|
Network PostScript |
|
179 |
TCP |
BGP |
|
Border Gateway Protocol |
|
194 |
TCP |
irc |
|
Internet Relay Chat Protocol |
|
213 |
UDP |
ipx |
|
IPX over IP |
|
389 |
TCP |
ldap |
|
Lightweight Directory Access Protocol |
|
401 |
TCP/UDP |
UPS |
|
Uninterruptible Power Supply |
|
443 |
TCP/UDP |
https |
MCom |
Http protocol over TLS/SSL |
|
445 |
TCP/UDP |
CIFS |
|
Microsoft-ds (CIFS) |
|
464 |
TCP/UDP |
kpasswd |
|
Kerberos (v5) |
|
500 |
UDP |
isakmp |
ike |
Internet Key Exchange (IPSec) |
|
513 |
TCP |
login |
|
Remote Login |
|
513 |
UDP |
who |
whod |
Database of who’s logged on, average load |
|
514 |
TCP |
cmd |
shell |
Automatic Authentication |
|
514 |
UDP |
syslog |
|
515 |
|
TCP |
printer |
spooler |
|
Listens for incoming connections |
|
517 |
UDP |
talk |
|
Establishes TCP Connection |
|
520 |
TCP |
efs |
|
Extended File Name Server |
|
520 |
UDP |
Routing |
router routed |
RIPv.1, RIPv.2 |
|
521 |
UDP |
Routing |
router routed |
RIPng |
|
525 |
UDP |
Timed |
timeserver |
Timeserver |
|
526 |
TCP |
Tempo |
newdate |
Newdate |
|
530 |
TCP/UDP |
Courier |
rpc |
RPC |
|
531 |
TCP |
conference |
chat |
IRC Chat |
|
532 |
TCP |
netnews |
readnews |
Readnews |
|
533 |
UDP |
Netwall |
|
For emergency broadcasts |
|
540 |
TCP |
Uucp |
uucpd |
Uucpd |
|
543 |
TCP |
Klogin |
|
Kerberos login |
|
544 |
TCP |
Kshell |
krcmd |
Kerberos remote shell |
|
550 |
UDP |
new-rwho |
new-who |
New-who |
|
554 |
UDP |
rtsp |
|
Real Time Stream Control Protocol |
|
556 |
TCP |
remotefs |
rfs rfs_server |
Rfs Server |
|
560 |
UDP |
rmonitor |
rmonitord |
Rmonitor |
|
561 |
UDP |
monitor |
|
636 |
|
TCP |
Ldaps |
sldap |
|
LDAP over TLS/SSL |
|
749 |
TCP/UDP |
kerberos-adm |
|
Kerberos administration |
|
750 |
UDP |
Kerberos-iv |
|
Kerberos version IV |
|
1080 |
TCP/UDP |
socks |
|
socks |
|
1812 |
TCP |
RADIUS |
|
RADIUS |
|
1813 |
TCP |
RADIUS |
|
RADIUS accounting |