|
Service |
Port |
Protocol |
Description |
| ftp-data |
20 |
TCP |
File Transfer Protocol (FTP) (default data) |
| ftp |
21 |
TCP |
FTP (control) |
| telnet |
23 |
TCP |
Telnet |
| smtp |
25 |
TCP |
Simple Mail Transfer Protocol (SMTP) (email) |
| nicname |
43 |
TCP |
whois Internet directory service |
| nicname |
43 |
UDP |
whois Internet directory service |
| domain |
53 |
TCP |
Domain Name System (DNS)
|
| domain |
53 |
UDP |
DNS |
| tftp |
69 |
UDP |
Trivial File Transfer Protocol (TFTP) |
| gopher |
70 |
TCP |
Gopher |
| gopher |
70 |
UDP |
Gopher |
| finger |
79 |
TCP |
Finger Protocol |
| finger |
79 |
UDP |
Finger Protocol |
| www-http |
80 |
TCP |
World Wide Web Hypertext Transfer Protocol (HTTP) |
| kerberos |
88 |
TCP |
Kerberos authentication
|
| kerberos |
88 |
UDP |
Kerberos authentication
|
| pop3 |
110 |
TCP |
Post Office Protocol (POP) version 3 |
| sunrpc |
111 |
TCP |
SUN Remote Procedure Call (RPC) |
| sunrpc |
111 |
UDP |
SUN RPC |
| auth |
113 |
TCP |
Authentication service |
| auth |
113 |
UDP |
Authentication service |
| nntp |
119 |
TCP |
Network News Transfer Protocol (NNTP) |
| ntp |
123 |
TCP |
Network Time Protocol (NTP) |
| ntp |
123 |
UDP |
NTP |
| snmp |
161 |
TCP |
Simple Network Management Protocol (SNMP) |
| snmp |
161 |
UDP |
SNMP |
| snmptrap |
162 |
TCP |
SNMP system management messages |
| snmptrap |
162 |
UDP |
SNMP system management messages |
| imap3 |
220 |
TCP |
Interactive Mail Access Protocol (IMAP) version 3 |
| imap3 |
220 |
UDP |
IMAP version 3 |
| exec |
512 |
TCP |
Remote process execution
|
| login |
513 |
TCP |
Remote login |
| who |
513 |
UDP |
Remote who daemon (rwhod ) |
| cmd |
514 |
TCP |
Remote command (rsh ) |
| syslog |
514 |
UDP |
System log facility |
| printer |
515 |
TCP |
Line printer daemon (LPD) spooler |
| talk |
517 |
TCP |
Terminal-to-terminal chat
|
| talk |
517 |
UDP |
Terminal-to-terminal chat
|
| ntalk |
518 |
TCP |
Newer version of Terminal-to-terminal chat |
| router |
520 |
UDP |
Routing Information Protocol (RIP) |
| uucp |
540 |
TCP |
UNIX-to-UNIX Copy Protocol (UUCP) |
| uucp |
540 |
UDP |
UUCP |
| uucp-rlogin |
541 |
TCP |
Variant of UUCP/TCP |
| uucp-rlogin |
541 |
UDP |
Variant of UUCP/IP |
| klogin |
543 |
TCP |
Kerberized login |
| klogin |
543 |
UDP |
Kerberized login |
| pmd |
1642 |
TCP |
PortMaster daemon in.pmd |
| pmconsole |
1643 |
TCP |
PortMaster Console Protocol |
| radius |
1645 |
UDP |
Remote Authentication Dial-In User Service (RADIUS) |
| radacct |
1646 |
UDP |
RADIUS accounting |
| choicenet |
1647 |
UDP |
ChoiceNet |
| l2tp |
1701 |
UDP |
Layer 2 Tunneling Protocol
|
| |
|
|
|
| |
|
|
Interdevice Net File System
Protocol
|
| |
|
|
Device Network Protocol
|
| |
|
|
Chip Network Protocol
|
| |
|
|
|
| |
|
|
|