Assalamualaikum wr. wb
Port merupakan mekanisme yang mengizinkan sebuah komputer
untuk mendukung beberapa sesi koneksi dengan komputer lainnya dan program di
dalam jaringan. Port dapat dikenali dengan angka 16-bit yang disebut dengan
Port Number dan diklasifikasikan dengan jenis protokol transport apa yang
digunakan, ke dalam Port TCP dan Port UDP. Karena memiliki angka 16-bit, maka
total maksimum jumlah port untuk setiap protokol transport yang digunakan
adalah 65536 buah.
Ada 3 jenis Penomoran Port TCP dan UDP, yaitu :
1.
Well-known Port
yang pada awalnya berkisar antara 0
hingga 255 tapi kemudian diperlebar untuk mendukung antara 0 hingga 1023. Port
number yang termasuk ke dalam well-known port, selalu merepresentasikan layanan
jaringan yang sama, dan ditetapkan oleh Internet Assigned Number Authority
(IANA). Beberapa di antara port-port yang berada di dalam range Wellknown port
masih belum ditetapkan dan direservasikan untuk digunakan oleh layanan yang
bakal ada di masa depan. Well-known port didefinisikan dalam RFC 1060.
2.
Registered Port
Port-port yang digunakan oleh
vendor-vendor komputer atau jaringan yang berbeda untuk mendukung aplikasi dan
sistem operasi yang mereka buat. Registered port juga diketahui dan didaftarkan
oleh IANA tapi tidak dialokasikan secara permanen, sehingga vendor lainnya
dapat menggunakan port number yang sama. Range registered port berkisar dari
1024 hingga 49151 dan beberapa port di antaranya adalah Dynamically Assigned
Port.
3.
Dynamically Assigned Port
merupakan port-port yang ditetapkan oleh
sistem operasi atau aplikasi yang digunakan untuk melayani permintaan dari
pengguna sesuai dengan kebutuhan. Dynamically Assigned Port berkisar dari 1024
hingga 65536 dan dapat digunakan atau dilepaskan sesuai kebutuhan.
Tabel
Penomoran Well-Known Port TCP/IP
JENIS
|
PORTS
|
KETERANGAN
|
TCP
|
0
|
Reserved
|
TCP
|
1
|
Port Service
Multiplexer
|
TCP
|
2
|
Management Utility
|
TCP
|
3
|
Compression Process
|
TCP
|
4
|
Unassigned
|
TCP
|
5
|
Remote Job Entry
|
TCP
|
6
|
Unassigned
|
TCP
|
7
|
Echo
|
TCP
|
8
|
Unassigned
|
TCP
|
9
|
Discard
|
TCP
|
10
|
Unassigned
|
TCP
|
11
|
Active Penggunas
|
TCP
|
12
|
Unassigned
|
TCP
|
13
|
Daytime (RFC 867)
|
TCP
|
14
|
Unassigned
|
TCP
|
15
|
Unassigned [was
netstat]
|
TCP
|
16
|
Unassigned
|
TCP
|
17
|
Quote of the Day
|
TCP
|
18
|
Message Send Protocol
|
TCP
|
19
|
Character Generator
|
TCP
|
20
|
File Transfer [Default Data]
|
TCP
|
21
|
File Transfer
[Control]
|
TCP
|
22
|
SSH Remote Login Protocol
|
TCP
|
23
|
Telnet
|
TCP
|
24
|
any private mail system
|
TCP
|
25
|
Simple Mail Transfer
|
TCP
|
26
|
Unassigned
|
TCP
|
27
|
NSW Pengguna System FE
|
TCP
|
28
|
Unassigned
|
TCP
|
29
|
MSG ICP
|
TCP
|
30
|
Unassigned
|
TCP
|
31
|
MSG Authentication
|
TCP
|
32
|
Unassigned
|
TCP
|
33
|
Display Support
Protocol
|
TCP
|
34
|
Unassigned
|
TCP
|
35
|
any private printer
server
|
TCP
|
36
|
Unassigned
|
TCP
|
37
|
Time
|
TCP
|
38
|
Route Access Protocol
|
TCP
|
39
|
Resource Location
Protocol
|
TCP
|
40
|
Unassigned
|
TCP
|
41
|
Graphics
|
TCP
|
42
|
Host Name Server
|
TCP
|
43
|
WhoIs
|
TCP
|
44
|
MPM FLAGS Protocol
|
TCP
|
45
|
Message Processing
Module [recv]
|
TCP
|
46
|
MPM [default send]
|
TCP
|
47
|
NI FTP
|
TCP
|
48
|
Digital Audit Daemon
|
TCP
|
49
|
Login Host Protocol
(TACACS)
|
TCP
|
50
|
Remote Mail Checking Protocol
|
TCP
|
51
|
IMP Logical Address
Maintenance
|
TCP
|
52
|
XNS Time Protocol
|
TCP
|
53
|
Domain Name Server
|
TCP
|
54
|
XNS Clearinghouse
|
TCP
|
55
|
ISI Graphics Language
|
TCP
|
56
|
XNS Authentication
|
TCP
|
57
|
any private terminal
access
|
TCP
|
58
|
XNS Mail
|
TCP
|
59
|
any private file
service
|
TCP
|
60
|
Unassigned
|
TCP
|
61
|
NI MAIL
|
TCP
|
62
|
ACA Services
|
TCP
|
63
|
whois++
|
TCP
|
64
|
Communications Integrator (CI)
|
TCP
|
65
|
TACACS-Database
Service
|
TCP
|
66
|
Oracle SQL*NET
|
TCP
|
67
|
Bootstrap Protocol
Server
|
TCP
|
68
|
Bootstrap Protocol Client
|
TCP
|
69
|
Trivial File Transfer
|
TCP
|
70
|
Gopher
|
TCP
|
71
|
Remote Job Service
|
TCP
|
72
|
Remote Job Service
|
TCP
|
73
|
Remote Job Service
|
TCP
|
74
|
Remote Job Service
|
TCP
|
75
|
any private dial out
service
|
TCP
|
76
|
Distributed External Object Store
|
TCP
|
77
|
any private RJE service
|
TCP
|
78
|
vettcp
|
TCP
|
79
|
Finger
|
TCP
|
80
|
World Wide Web HTTP
|
TCP
|
81
|
HOSTS2 Name Server
|
TCP
|
82
|
XFER Utility
|
TCP
|
83
|
MIT ML Device
|
TCP
|
84
|
Common Trace Facility
|
TCP
|
85
|
MIT ML Device
|
TCP
|
86
|
Micro Focus Cobol
|
TCP
|
87
|
any private terminal
link
|
TCP
|
88
|
Kerberos
|
TCP
|
89
|
SU/MIT Telnet Gateway
|
TCP
|
90
|
DNSIX Securit Attribute Token Map
|
TCP
|
91
|
MIT Dover Spooler
|
TCP
|
92
|
Jaringan Printing Protocol
|
TCP
|
93
|
Device Control
Protocol
|
TCP
|
94
|
Tivoli Object Dispatcher
|
TCP
|
95
|
SUPDUP
|
TCP
|
96
|
DIXIE Protocol Specification
|
TCP
|
97
|
Swift Remote Virtural
File Protocol
|
TCP
|
98
|
TAC News
|
TCP
|
99
|
Metagram Relay
|
TCP
|
100
|
[unauthorized use]
|
TCP
|
101
|
NIC Host Name Server
|
TCP
|
102
|
ISO-TSAP Class 0
|
TCP
|
103
|
Genesis Point-to-Point
Trans Net
|
TCP
|
104
|
ACR-NEMA Digital Imag. & Comm. 300
|
TCP
|
105
|
Mailbox Name
Nameserver
|
TCP
|
106
|
3COM-TSMUX
|
TCP
|
107
|
Remote Telnet Service
|
TCP
|
108
|
SNA Gateway Access Server
|
TCP
|
109
|
Post Office Protocol -
Version 2
|
TCP
|
110
|
Post Office Protocol - Version 3
|
TCP
|
111
|
SUN Remote Procedure
Call
|
TCP
|
112
|
McIDAS Data Transmission Protocol
|
TCP
|
113
|
Authentication Service
|
TCP
|
114
|
Audio News Multicast
|
TCP
|
115
|
Simple File Transfer
Protocol
|
TCP
|
116
|
ANSA REX Notify
|
TCP
|
117
|
UUCP Path Service
|
TCP
|
118
|
SQL Services
|
TCP
|
119
|
Jaringan News Transfer
Protocol
|
TCP
|
120
|
CFDPTKT
|
TCP
|
121
|
Encore Expedited
Remote Pro.Call
|
TCP
|
122
|
SMAKYNET
|
TCP
|
123
|
Jaringan Time Protocol
|
TCP
|
124
|
ANSA REX Trader
|
TCP
|
125
|
Locus PC-Interface Net
Map Ser
|
TCP
|
126
|
Unisys Unitary Login
|
TCP
|
127
|
Locus PC-Interface
Conn Server
|
TCP
|
128
|
GSS X License Verification
|
TCP
|
129
|
Password Generator
Protocol
|
TCP
|
130
|
cisco FNATIVE
|
TCP
|
131
|
cisco TNATIVE
|
TCP
|
132
|
cisco SYSMAINT
|
TCP
|
133
|
Statistics Service
|
TCP
|
134
|
INGRES-NET Service
|
TCP
|
135
|
DCE endpoint
resolution
|
TCP
|
136
|
PROFILE Naming System
|
TCP
|
137
|
NETBIOS Name Service
|
TCP
|
138
|
NETBIOS Datagram Service
|
TCP
|
139
|
NETBIOS Session
Service
|
TCP
|
140
|
EMFIS Data Service
|
TCP
|
141
|
EMFIS Control Service
|
TCP
|
142
|
Britton-Lee IDM
|
TCP
|
143
|
Internet Message
Access Protocol
|
TCP
|
144
|
Universal Management Architecture
|
TCP
|
145
|
UAAC Protocol
|
TCP
|
146
|
ISO-IP0
|
TCP
|
147
|
ISO-IP
|
TCP
|
148
|
Jargon
|
TCP
|
149
|
AED 512 Emulation
Service
|
TCP
|
150
|
SQL-NET
|
TCP
|
151
|
HEMS
|
TCP
|
152
|
Background File Transfer Program
|
TCP
|
153
|
SGMP
|
TCP
|
154
|
NETSC
|
TCP
|
155
|
NETSC
|
TCP
|
156
|
SQL Service
|
TCP
|
157
|
KNET/VM
Command/Message Protocol
|
TCP
|
158
|
PCMail Server
|
TCP
|
159
|
NSS-Routing
|
TCP
|
160
|
SGMP-TRAPS
|
TCP
|
161
|
SNMP
|
TCP
|
162
|
SNMPTRAP
|
TCP
|
163
|
CMIP/TCP Manager
|
TCP
|
164
|
CMIP/TCP Agent
|
TCP
|
165
|
Xerox
|
TCP
|
166
|
Sirius Systems
|
TCP
|
167
|
NAMP
|
TCP
|
168
|
RSVD
|
TCP
|
169
|
SEND
|
TCP
|
170
|
Jaringan PostScript
|
TCP
|
171
|
Jaringan Innovations
Multiplex
|
TCP
|
172
|
Jaringan Innovations CL/1
|
TCP
|
173
|
Xyplex
|
TCP
|
174
|
MAILQ
|
TCP
|
175
|
VMNET
|
TCP
|
176
|
GENRAD-MUX
|
TCP
|
177
|
X Display Manager
Control Protocol
|
TCP
|
178
|
NextStep Window Server
|
TCP
|
179
|
Border Gateway
Protocol
|
TCP
|
180
|
Intergraph
|
TCP
|
181
|
Unify
|
TCP
|
182
|
Unisys Audit SITP
|
TCP
|
183
|
OCBinder
|
TCP
|
184
|
OCServer
|
TCP
|
185
|
Remote-KIS
|
TCP
|
186
|
KIS Protocol
|
TCP
|
187
|
Application
Communication Interface
|
TCP
|
188
|
Plus Five's MUMPS
|
TCP
|
189
|
Queued File Transport
|
TCP
|
190
|
Gateway Access Control Protocol
|
TCP
|
191
|
Prospero Directory
Service
|
TCP
|
192
|
OSU Jaringan Monitoring System
|
TCP
|
193
|
Spider Remote
Monitoring Protocol
|
TCP
|
194
|
Internet Relay Chat Protocol
|
TCP
|
195
|
DNSIX Jaringan Level
Module Audit
|
TCP
|
196
|
DNSIX Session Mgt Module Audit Redir
|
TCP
|
197
|
Directory Location
Service
|
TCP
|
198
|
Directory Location Service Monitor
|
TCP
|
199
|
SMUX
|
TCP
|
200
|
IBM System Resource Controller
|
TCP
|
201
|
AppleTalk Routing
Maintenance
|
TCP
|
202
|
AppleTalk Name Binding
|
TCP
|
203
|
AppleTalk Unused
|
TCP
|
204
|
AppleTalk Echo
|
TCP
|
205
|
AppleTalk Unused
|
TCP
|
206
|
AppleTalk Zone Information
|
TCP
|
207
|
AppleTalk Unused
|
TCP
|
208
|
AppleTalk Unused
|
TCP
|
209
|
The Quick Mail
Transfer Protocol
|
TCP
|
210
|
ANSI Z39.50
|
TCP
|
211
|
Texas Instruments
914C/G Terminal
|
TCP
|
212
|
ATEXSSTR
|
TCP
|
213
|
IPX
|
TCP
|
214
|
VM PWSCS
|
TCP
|
215
|
Insignia Solutions
|
TCP
|
216
|
Computer Associates Int'l License Server
|
TCP
|
217
|
dBASE Unix
|
TCP
|
218
|
Netix Message Posting Protocol
|
TCP
|
219
|
Unisys ARPs
|
TCP
|
220
|
Interactive Mail Access Protocol v3
|
TCP
|
221
|
Berkeley rlogind with
SPX auth
|
TCP
|
222
|
Berkeley rshd with SPX auth
|
TCP
|
223
|
Certificate
Distribution Center
|
TCP
|
224
|
masqdialer
|
TCP
|
242
|
Direct
|
TCP
|
243
|
Survey Measurement
|
TCP
|
244
|
inbusiness
|
TCP
|
245
|
LINK
|
TCP
|
246
|
Display Systems
Protocol
|
TCP
|
247
|
SUBNTBCST_TFTP
|
TCP
|
248
|
bhfhs
|
***Sekian dan Terima Kasih***
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