7 echo Echo
9 discard aka sink/null
11 systat aka users, Active users
13 daytime Time of day
17 qotd aka quote, Quote of the day
19 chargen aka ttytst source, Character generator
20 ftp aka , FTP, data
21 ftp aka , FTP. control
23 telnet Telnet
25 smtp aka mail, Simple Mail Transfer Protocol
37 time aka timserver
39 rlp aka resource, Resource Location Protocol
42 nameserver aka name, Host Name Server
43 nicname aka whois
53 domain aka , Domain Name Server
67 bootps aka dhcps, Bootstrap Protocol Server
68 bootpc aka dhcpc, Bootstrap Protocol Client
69 tftp aka , Trivial File Transfer
70 gopher gopher
79 finger finger
80 http aka www www-http, World Wide Web
88 kerberos aka krb5 kerberos-sec, Kerberos
101 hostname aka hostnames, NIC Host Name Server
102 iso aka , ISO-TSAP Class 0
107 rtelnet aka , Remote Telnet Service
109 pop2 aka postoffice, Post Office Protocol - Version 2
110 pop3 aka , Post Office Protocol - Version 3
111 sunrpc aka rpcbind portmap, SUN Remote Procedure Call
113 auth aka ident tap, Identification Protocol
117 uucp uucp
119 nntp aka usenet, Network News Transfer Protocol
123 ntp aka , Network Time Protocol
135 epmap aka loc-srv, DCE endpoint resolution
137 netbios aka nbname, NETBIOS Name Service
138 netbios aka nbdatagram, NETBIOS Datagram Service
139 netbios aka nbsession, NETBIOS Session Service
143 imap aka imap4, Internet Message Access Protocol
158 pcmail aka , PCMail Server
161 snmp aka , SNMP
162 snmptrap aka snmp-trap, SNMP trap
170 print aka , Network PostScript
179 bgp aka , Border Gateway Protocol
194 irc aka , Internet Relay Chat Protocol
213 ipx aka , IPX over IP
389 ldap aka , Lightweight Directory Access Protocol
443 https aka MCom
445 microsoft Microsoft
464 kpasswd aka , Kerberos (v5)
500 isakmp aka ike, Internet Key Exchange
512 exec aka , Remote Process Execution
512 biff aka comsat
513 login aka , Remote Login
513 who aka whod
514 cmd aka shell
514 syslog syslog
515 printer aka spooler
517 talk talk
518 ntalk ntalk
520 efs aka , Extended File Name Server
520 router aka route/routed
525 timed aka timeserver
526 tempo aka newdate
530 courier aka rpc
531 conference aka chat
532 netnews aka readnews
533 netwall For emergency broadcasts
540 uucp aka uucpd
543 klogin aka , Kerberos login
544 kshell aka krcmd, Kerberos remote shell
550 new aka new-who
556 remotefs aka rfs rfs_server
560 rmonitor aka rmonitord
561 monitor monitor
636 ldaps aka sldap, LDAP over TLS/SSL
666 doom aka , Doom Id Software
749 kerberos aka , Kerberos administration
750 kerberos aka , Kerberos version IV
1109 kpop aka , Kerberos POP
1167 phone aka , Conference calling
1433 ms aka , Microsoft-SQL-Server
1434 ms aka , Microsoft-SQL-Monitor
1512 wins aka , Microsoft Windows Internet Name Service
1524 ingreslock aka ingres
1701 l2tp aka , Layer Two Tunneling Protocol
1723 pptp Point-to-point tunnelling protocol
1812 radius RADIUS authentication protocol
1813 radacct RADIUS accounting protocol
2049 nfsd aka nfs, NFS server
2053 knetd aka , Kerberos de-multiplexor
9535 man aka , Remote Man Server