DoorStop Port List

Note: this list is online only for historical purposes. An up-to-date list is available here.

On this page, Open Door Networks is attempting to build as complete a list as possible of port numbers used by Macintosh applications. We would like this page to become a resource for DoorStop users and for the Macintosh community in general. Please send additions, corrections, and other comments on this page to doorstop@opendoor.com. Thank you.

Please also check "Internet Security for Your Macintosh: A Guide for the Rest of Us" for more details on port usage.

TCP Port Numbers Commonly Used by Macintosh Services

Port Usage Reference Notes
20 FTP Data RFC 959 Only used as a source port
21 FTP Control RFC 959  
22 Secure Shell (ssh) ssh.com Remote login on OS X
23 Telnet RFC 854 Common port for attacks
25 SMTP (email) RFC 821, 822  
53 DNS RFC 1034, 1035 Mainly uses UDP, not TCP
70 Gopher RFC 1436  
79 Finger RFC 1288  
80 HTTP (Web) RFC 1945  
88 Kerberos RFC 1510  
105 PH (directory)    
106 Poppass (change password) Wesleyan tech note  
110 POP3 (email) RFC 1081, 1082  
111 Remote Procedure Call (RPC) RFC 1057 Used for many Unix applications
113 AUTH RFC 931  
119 NNTP (News) RFC 977  
139 NETBIOS Session RFCs 1001, 1002 Windows access (ASIP 6)
143 IMAP (new email) RFC 2060  
311 AppleShare Web Admin ASIP Tech note ASIP 6.1 and later
384 ARNS (tunneling) Univ. of Melbourne  
387 AURP (tunneling) RFC 1504  
389 LDAP (directory) RFC 1777, 1778  
407 Timbuktu 5.2 or later Netopia technote Previous versions use other ports
427 SLP (service location) RFC 2165 Only uses TCP for large responses
443 SSL (HTTPS) Draft RFC  
497 Retrospect   UDP for finding clients
510 FirstClass server SoftArc tech note  
515 LPR (printing) RFC 1179  
548 AFP (AppleShare) AFP 2.2 spec  
554 RTSP (QuickTime server) Apple tech note Also uses UDP 6970+
591 FileMaker Pro Web FileMaker tech note Recommended alternate to 80
626 IMAP Admin   Apple extension in ASIP 6
631 IPP (Internet Printing Protocol) RFCs 2565-2569 Available in Mac OS X 10.2 through CUPS
660 ASIP Remote Admin   ASIP 6.3 and later
666 Now Contact Server Eudora tech note Violates actual port assignment
687 ASIP Shared U? Port ASIP Tech note ASIP 6.2 and later
1080 WebSTAR Admin WebSTAR FAQ WebSTAR port number plus 1000
1417 Timbuktu Control (pre-5.2) Netopia technote Login is through UDP Port 407
1418 Timbuktu Observe (pre-5.2) Netopia technote Login is through UDP Port 407
1419 Timbuktu Send Files (pre-5.2) Netopia technote Login is through UDP Port 407
1420 Timbuktu Exchange (pre-5.2) Netopia technote Login is through UDP Port 407
1443 WebSTAR/SSL Admin WebSTAR FAQ WebSTAR port number plus 1000
3031 Program Linking (Apple Events)   Mac OS 9 and later
4000 Now Public Event Server Eudora tech note  
4199 EIMS Admin EIMS Users Guide  
4347 LANsurveyor Responders Neon tech note Uses UDP also
5003 FileMaker Pro FileMaker tech note Direct access, not through Web; UDP for host list
5190 AOL Instant Messenger AOL tech note  
5498 Hotline Tracker Hotline tech note UDP port 5499 for finding servers
5500 Hotline Server Hotline tech note  
5501 Hotline Server Hotline tech note  
6699 Napster/Macster client Apparent usage Used when server is in "firewall mode"
7070 Real Player Real tech note Also UDP ports 6970-7170
7648 CuSeeMe (video) White pine tech note Client connections; UDP for audio/video
7649 CuSeeMe (video) White pine tech note Connection establishment.
8080 Common HTTP alternate RFC 1945  
19813 4D server ACI US tech note Previously 14566 (6.0 and earlier)

 

UDP Port Numbers Commonly Used by Macintosh Services

Port Usage Reference Notes
53 DNS   Sometimes uses TCP
68 Dynamic Host Configuration Protocol (DHCP) RFC 2131 Commonly used to obtain a Mac's IP address
69 Trivial File Transfer Protocol (TFTP) RFC 783  
123 Network Time Protocol RFC 1305  
137 Windows Name Service RFC 1001  
138 Windows Datagram Service RFC 1001  
161 Simple Network Management Protocol (SNMP) RFC 1157  
407 Timbuktu Netopia technote Handshaking only, prior to version 5.2
458 QuickTime TV    
497 Retrospect   Finding clients on the network
514 Syslog    
554 Real Time Streaming Protocol (QuickTime) RFC 2326  
2049 Network File System (NFS) RFC 1813  
3283 Apple Network Assistant TIL Note  
5003 FileMaker Pro FileMaker tech note For obtaining host list
 6970 and up QuickTime and RealPlayer TIL Note  
7070 RTSP alternate (RealPlayer) Support Note  

The complete, official port number list is at http://www.iana.org/assignments/port-numbers , however this list is very difficult to understand, is missing many of the commonly-used (if not official) Macintosh ports and contains a good deal of obsolete information.