Network Ports | TCP & UDP Well-Known Port Numbers ⋆ IpCisco

1080
✔

socks
SOCKS proxy

1433
✔

ms-sql-s
Microsoft SQL server

1434
✔
✔
ms-sql-m
Microsoft SQL monitor

1494
✔

ica
Citrix ICA client

1512
✔
✔
wins
Windows internet name service

1524
✔
✔
ingreslock
Ingres DBMS

1701

✔
l2tp
Layer 2 tunneling protocol/Layer 2 forwarding

1719

✔
h323gatestat
H.323

1720
✔

h323hostcall
H.323

1812
✔
✔
radius
RADIUS authentication

1813
✔
✔
radius-acct
RADIUS access

1985

✔
hsrp
Cisco HSRP

2008
✔

Teamspeak 3 accounting (unofficial)

2010

✔

Teamspeak 3 web list (unofficial)

2049
✔
✔
nfs
Network file system

2102
✔
✔
zephyr-srv
Zephyr server

2103
✔
✔
zephyr-clt
Zephyr client

2104
✔
✔
zephyr-hm
Zephyr host manager

2401
✔

cvspserver
Concurrent versions system

2809
✔
✔
corbaloc
Common object request broker architecture

3306
✔
✔
mysql
MySQL database service (also for MariaDB)

4321
✔

rwhois
Remote whois service

5999
✔

cvsup
CVSup

6000
✔

X11
X Windows system services

11371
✔

pgpkeyserver
Public keyserver for PGP

13720
✔
✔
bprd
Symantec/Veritas NetBackup

13721
✔
✔
bpdbm
Symantec/Veritas database manager

13724
✔
✔
vnetd
Symantec/Veritas network utility

13782
✔
✔
bpcd
Symantec/Veritas NetBackup

13783
✔
✔
vopied
Symantec/Veritas VOPIE

22273
✔
✔
wnn6
Kana/Kanji conversion

23399

Skype (unofficial)

25565
✔

Minecraft

26000
✔
✔
quake
Quake and other multiplayer games

27017

MongoDB

33434
✔
✔
traceroute
Network tracking