Port Names TCP/UDP Meaning
7 echo tu Echo (RFC 862)
9 discard sink null tu Discard (RFC 863)
13 daytime tu Daytime (RFC 867)
17 qotd quote tu Quote of the Day (RFC 865)
19 chargen ttytst source tu Character Generator (RFC 864)
20 ftp-data tu File Transfer [Default Data]
21 ftp tu File Transfer [Control] (RFC 959)
22 ssh tu Secure shell
23 telnet tu Telnet (RFC 854)
25 smtp mail tu Simple Mail Transfer (RFC 821)
37 time timserver tu Time (RFC 868)
43 nicname whois tu Who Is (RFC 954)
53 domain nameserver tu Domain Name Server (RFC 1034)
69 tftp tu Trivial File Transfer (RFC 1350)
70 gopher tu Gopher (RFC 1436)
79 finger tu Finger (RFC 1288)
80 www http tu World Wide Web HTTP (RFC 1945)
110 pop3 tu Post Office Protocol - Version 3 (RFC 1939)
113 auth authentication tu Authentication Service (RFC 931)
115 sftp tu Simple File Transfer Protocol (RFC 913)
119 nntp readnews untp tu Network News Transfer Protocol (RFC 977)
123 ntp tu Network Time Protocol (RFC 958)
137 netbios-ns tu NetBIOS name service
138 netbios-dgm tu NetBIOS datagram service
139 netbios-ssn tu NetBIOS session service
143 imap imap2 imap4 tu Interim Mail Access Protocol v2
194 irc tu Internet Relay Chat
220 imap3 tu Interim Mail Access Protocol v3
389 ldap tu Lightweight Directory Access Protocol
443 https tu World Wide Web HTTP Secure
RISC OS specific services
32768 aun-data u
32769 aun-atp u
32770 freeway1 u
32771 freeway2 u
49171 sharefs u
Click here for the definitive registry of all services.
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