Port
Number |
Protocol |
Service |
0 |
TCP/UDP |
Reserved |
7 |
TCP/UDP |
Echo |
9 |
TCP/UDP |
Discard |
11 |
TCP |
Systat |
13 |
TCP/UDP |
Daytime |
17 |
TCP/UDP |
Quote of the day |
19 |
TCP/UDP |
Chargen (character
generator) |
21 |
TCP |
FTP |
23 |
TCP |
Telnet |
25 |
TCP |
SMTP |
37 |
TCP/UDP |
Time |
38 |
TCP/UDP |
Route Access Protocol |
42 |
UDP |
Name Server |
43 |
TCP |
Whois |
49 |
TCP |
Login Host Protocol |
53 |
TCP/UDP |
DNS |
60 |
TCP/UDP |
Unassigned |
67 |
UDP |
Bootstrap Protocol
Server |
68 |
UDP |
Bootstrap Protocol
Client |
69 |
UDP |
Trivial File Transfer
(TFT) |
70 |
TCP |
Gopher |
80 |
TCP |
HTTP |
88 |
TCP |
Kerberos |
101 |
TCP/UDP |
NIC host name server |
109 |
TCP |
POP2 |
110 |
TCP |
POP3 |
111 |
TCP/UDP |
Sun remote procedure
call (Sun RPC) |
119 |
TCP |
NNTP |
137 |
TCP/UDP |
Netbios name service |
138 |
TCP/UDP |
Netbios datagram
service |
139 |
TCP/UDP |
Netbios session service |
161 |
UDP |
SNMP |
512 |
TCP |
Remote process execution |
513 |
TCP |
Remote login via
telnet |
514 |
TCP |
cmd |
749 |
TCP |
Kerberos administration
port |
