Common ports cheatsheet

## MOST USED PORTS
7 - ECHO
19 - Chargen (character generation protocol)
20, 21 - FTP (File Transfer Protocol)
22 - SSH
23 - Telnet
25 - SMTP
42 - WINS Replication ( Windows Internet Naming Service) vulnerability MS05-051 port 53 tcp and MS04-045 on 42 tcp
43 - WHOIS (lookups)
49 - TACACS ( Terminal Access Controller Access Control System)
53 - DNS
67, 68 - DHCP, BOOTP
69 - TFTP (Trivial file transfer Protocol) no encryption or authentication, only read or write files in remote
70 - Gopher
79 - Finger (based on RFC 742)
80 - HTTP
88 - Kerberos
102 - MS Exchange
110 - POP3
113 - Ident
119 - NNTP
123 - NTP
135 - Microsoft RPC
137, 139 - NetBIOS
143 - IMAP4
161, 162 - SNMP
177 - XDMCP
179 - BGP
201 - AppleTalk
264 - BGMP
318 - TSP
381, 383 - HP Overview
389 - LDAP
411, 412 - Direct Connect
443 - HTTP over SSL
445 - Microsoft DS
464 - Kerberos
465 - SMTP over SSL
497 - Retrospect
500 - ISAKMP 
512 - rexec
513 - rlogin
514 - syslog
515 - LPD/LPR
520 - RIP
521 - RIPv6
540 - UUCP
554 - RTSP
546, 547 - DHCPv6
560 - monitor
563 - NNTP over SSL
587 - SMTP 
591 - FileMaker
593 - Microsoft DCOM
631 - Internet Printing
636 - LDAP over SSL
639 - MSDP(PIM)
646 - LDP (MPLS)
691 - MS Exchange
860 - ISCSI
873 - rsync
902 - VMware Server
989, 990 - FTP over SSL
993 - IMAP4 over SSL
995 - POP3 over SSL
1025 - Microsoft RPC
1026, 1029 - Windows Messenger
1080 - SOCKS Proxy
1080 - MyDoom
1194 - OpenVPN
1214 - Kazaa
1241 - Nessus
1311 - Dell OpenManage
1337 - WASTE
1433, 1434 - Microsoft SQL
1512 - WINS
1589 - CISCO VOP
1701 - L2TP
1723 - MS PPTP
1725 - Steam
1741 - CiscoWorks 2000
1755 - Ms Media Server
1812, 1813 - RADIUS
1863 - MSN
1985 - Cisco MSRP
2000 - Cisco SCCP
2002 - Cisco ACS
2049 - NFS
2082, 2083 - cPanel
2100 - Oracle XDB
2222 - DirectAdmin
2302 - Halo
2483, 2484 - Oracle DB
2745 - Bagle.H
2967 - Sysmanter. AV
3050 - Interbase DB
3074 - XBOX Live
3124 - HTTP Proxy
3127 - MyDoom
3128 - HTTP Proxy
3222 - GLBP
3260 - ISCSI Target
3306 - MySQL
3389 - Terminal Server
3689 - iTunes
3690 - Subversion
3724 - World of Warcraft
3784, 3785 - Ventrilo
4333 - mSQL
4444 - Biaster
4664 - Google Desktop
4672 - eMule
6891, 6901 - Windows Live
6970 - Quicktime
7212 - GhostSurf
7648, 7649 - CU-SEEME
8000 - Internet Radio
8080 - HTTP Proxy
8086, 8087 - Kaspersky AV
8118 - Privoky
8200 - VMware Server
8500 - Adobe ColdFusion
8767 - TeamSpeak
8866 - Bagle.B
9100 - HP jetDirect
9101, 9103 - Bacula
9119 - MXit
9800 - WebDAV
9898 - Dabber
9988 - Rbot/Spybot
9999 - Urchin