PORT | LAYER | NAME | DESCRIPTION |
1 | TCP | tcpmux | TCP port service multiplexer |
5 | TCP | rje | Remote Job Entry |
7 | TCP | echo | Echo service |
9 | TCP | discard | Null service for connection testing |
11 | TCP | systat | System Status service for listing connected ports |
13 | TCP | daytime | Sends date and time to requesting host |
17 | TCP | qotd | Sends quote of the day to connected host |
18 | TCP | msp | Message Send Protocol |
19 | TCP | chargen | Character Generation service; sends endless stream of characters |
20 | TCP | ftp-data | FTP data port |
21 | TCP | ftp | File Transfer Protocol (FTP) port; sometimes used by File Service Protocol (FSP) |
22 | TCP | ssh | Secure Shell (SSH) service |
23 | TCP | telnet | The Telnet service |
25 | TCP | smtp | Simple Mail Transfer Protocol (SMTP) |
37 | TCP | time | Time Protocol |
39 | TCP | rlp | Resource Location Protocol |
42 | TCP | nameserver | Internet Name Service |
43 | TCP | nicname | WHOIS directory service |
49 | TCP | tacacs | Terminal Access Controller Access Control System for TCP/IP based authentication and access |
50 | TCP | re-mail-ck | Remote Mail Checking Protocol |
53 | TCP | domain | domain name services (such as BIND) |
63 | TCP | whois++ | WHOIS++, extended WHOIS services |
67 | TCP | bootps | Bootstrap Protocol (BOOTP) services; also used by Dynamic Host Configuration Protocol (DHCP) services |
68 | TCP | bootpc | Bootstrap (BOOTP) client; also used by Dynamic Host Control Protocol (DHCP) clients |
69 | TCP | tftp | Trivial File Transfer Protocol (TFTP) |
70 | TCP | gopher | Gopher Internet document search and retrieval |
71 | TCP | netrjs-1 | Remote Job Service |
72 | TCP | netrjs-2 | Remote Job Service |
73 | TCP | netrjs-3 | Remote Job Service |
73 | TCP | netrjs-4 | Remote Job Service |
79 | TCP | finger | Finger service for user contact information |
80 | TCP | http | HyperText Transfer Protocol (HTTP) for World Wide Web (WWW) services |
88 | TCP | kerberos | Kerberos network authentication system |
95 | TCP | supdup | Telnet protocol extension |
101 | TCP | hostname | Hostname services on SRI-NIC machines |
102 | TCP | iso-tsap | ISO Development Environment (ISODE) network applications |
105 | TCP | csnet-ns | Mailbox nameserver; also used by CSO nameserver |
107 | TCP | rtelnet | Remote Telnet |
109 | TCP | pop2 | Post Office Protocol version 2 |
110 | TCP | POP3 | Post Office Protocol version 3 |
111 | TCP | sunrpc | Remote Procedure Call (RPC) Protocol for remote command execution, used by Network Filesystem (NFS) |
113 | TCP | auth | Authentication and Ident protocols |
115 | TCP | sftp | Secure File Transfer Protocol (SFTP) services |
117 | TCP | uucp-path | Unix-to-Unix Copy Protocol (UUCP) Path services |
119 | TCP | nntp | Network News Transfer Protocol (NNTP) for the USENET discussion system |
123 | TCP | ntp | Network Time Protocol (NTP) |
137 | TCP | netbios-ns | NETBIOS Name Service used in Red Hat Enterprise Linux by Samba |
138 | TCP | netbios-dgm | NETBIOS Datagram Service used in Red Hat Enterprise Linux by Samba |
139 | TCP | netbios-ssn | NETBIOS Session Service used in Red Hat Enterprise Linux by Samba |
143 | TCP | IMAP | Internet Message Access Protocol (IMAP) |
161 | TCP | snmp | Simple Network Management Protocol (SNMP) |
162 | TCP | snmptrap | Traps for SNMP |
163 | TCP | cmip-man | Common Management Information Protocol (CMIP) |
164 | TCP | cmip-agent | Common Management Information Protocol (CMIP) |
174 | TCP | mailq | MAILQ email transport queue |
177 | TCP | xdmcp | X Display Manager Control Protocol (XDMCP) |
178 | TCP | nextstep | NeXTStep window server |
179 | TCP | bgp | Border Gateway Protocol |
191 | TCP | prospero | Prospero distributed filesystem services |
194 | TCP | irc | Internet Relay Chat (IRC) |
199 | TCP | smux | SNMP UNIX Multiplexer |
201 | TCP | at-rtmp | AppleTalk routing |
202 | TCP | at-nbp | AppleTalk name binding |
204 | TCP | at-echo | AppleTalk echo |
206 | TCP | at-zis | AppleTalk zone information |
209 | TCP | qmtp | Quick Mail Transfer Protocol (QMTP) |
210 | TCP | z39.50 | NISO Z39.50 database |
213 | TCP | ipx | Internetwork Packet Exchange (IPX), a datagram protocol commonly used in Novell Netware environments |
220 | TCP | IMAP3 | Internet Message Access Protocol version 3 |
245 | TCP | link | LINK / 3-DNS iQuery service |
347 | TCP | fatserv | FATMEN file and tape management server |
363 | TCP | rsvp_tunnel | RSVP Tunnel |
369 | TCP | rpc2portmap | Coda file system portmapper |
370 | TCP | codaauth2 | Coda file system authentication services |
372 | TCP | ulistproc | UNIX LISTSERV |
389 | TCP | ldap | Lightweight Directory Access Protocol (LDAP) |
427 | TCP | svrloc | Service Location Protocol (SLP) |
434 | TCP | mobileip-agent | Mobile Internet Protocol (IP) agent |
435 | TCP | mobilip-mn | Mobile Internet Protocol (IP) manager |
443 | TCP | https | Secure Hypertext Transfer Protocol (HTTP) |
444 | TCP | snpp | Simple Network Paging Protocol |
445 | TCP | microsoft-ds | Server Message Block (SMB) over TCP/IP |
464 | TCP | kpasswd | Kerberos password and key changing services |
468 | TCP | photuris | Photuris session key management protocol |
487 | TCP | saft | Simple Asynchronous File Transfer (SAFT) protocol |
488 | TCP | gss-http | Generic Security Services (GSS) for HTTP |
496 | TCP | pim-rp-disc | Rendezvous Point Discovery (RP-DISC) for Protocol Independent Multicast (PIM) services |
500 | TCP | isakmp | Internet Security Association and Key Management Protocol (ISAKMP) |
535 | TCP | iiop | Internet Inter-Orb Protocol (IIOP) |
538 | TCP | gdomap | GNUstep Distributed Objects Mapper (GDOMAP) |
546 | TCP | dhcpv6-client | Dynamic Host Configuration Protocol (DHCP) version 6 client |
547 | TCP | dhcpv6-server | Dynamic Host Configuration Protocol (DHCP) version 6 Service |
554 | TCP | rtsp | Real Time Stream Control Protocol (RTSP) |
563 | TCP | nntps | Network News Transport Protocol over Secure Sockets Layer (NNTPS) |
565 | TCP | whoami | whoami user ID listing |
587 | TCP | submission | Mail Message Submission Agent (MSA) |
610 | TCP | npmp-local | Network Peripheral Management Protocol (NPMP) local / Distributed Queueing System (DQS) |
611 | TCP | npmp-gui | Network Peripheral Management Protocol (NPMP) GUI / Distributed Queueing System (DQS) |
612 | TCP | hmmp-ind | HyperMedia Management Protocol (HMMP) Indication / DQS |
631 | TCP | ipp | Internet Printing Protocol (IPP) |
636 | TCP | ldaps | Lightweight Directory Access Protocol over Secure Sockets Layer (LDAPS) |
674 | TCP | acap | Application Configuration Access Protocol (ACAP) |
694 | TCP | ha-cluster | Heartbeat services for High-Availability Clusters |
749 | TCP | kerberos-adm | Kerberos version 5 (v5) ‘kadmin’ database administration |
750 | TCP | kerberos-iv | Kerberos version 4 (v4) services |
765 | TCP | webster | Network Dictionary |
767 | TCP | phonebook | Network Phonebook |
873 | TCP | rsync | rsync file transfer services |
992 | TCP | telnets | Telnet over Secure Sockets Layer (TelnetS) |
993 | TCP | IMAPS | Internet Message Access Protocol over Secure Sockets Layer (IMAPS) |
994 | TCP | ircs | Internet Relay Chat over Secure Sockets Layer (IRCS) |
995 | TCP | POP3s | Post Office Protocol version 3 over Secure Sockets Layer (POP3S) |