 Danh sách các cổng thông dụng |
||||
|
[hide]Port
|
TCP
|
UDP
|
Description
|
IANA status
|
|
0
|
N/A
|
N/A
|
In programming APIs (not in communication between hosts),
requests a system-allocated (dynamic) port[4]
|
N/A
|
|
0
|
Reserved
|
Reserved
|
Reserved
|
Official
|
|
1
|
TCP
|
Assigned
|
TCP Port Service Multiplexer
(TCPMUX). Historic. Both TCP and UDP have been assigned to TCPMUX by IANA,[1]
but by design only TCP is specified.[5]
|
Official
|
|
4
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
5
|
TCP
|
UDP
|
Official
|
|
|
6
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
7
|
TCP
|
UDP
|
Official
|
|
|
8
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
9
|
TCP
SCTP[8]
|
UDP
|
Official
|
|
|
9
|
UDP
|
Unofficial
|
||
|
10
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
11
|
TCP
|
UDP
|
Official
|
|
|
12
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
13
|
TCP
|
UDP
|
Official
|
|
|
14
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
15
|
TCP
|
UDP
|
Unofficial
|
|
|
16
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
17
|
TCP
|
UDP
|
Quote
of the Day (QOTD)[14]
|
Official
|
|
18
|
TCP
|
UDP
|
Official
|
|
|
19
|
TCP
|
UDP
|
Character Generator Protocol
(CHARGEN)[17]
|
Official
|
|
20
|
TCP
SCTP[8]
|
Assigned
|
File Transfer Protocol (FTP) data transfer[7]
|
Official
|
|
21
|
TCP
SCTP[8]
|
Assigned
|
Official
|
|
|
22
|
TCP
SCTP[8]
|
UDP
|
Official
|
|
|
23
|
TCP
|
Assigned
|
Official
|
|
|
25
|
TCP
|
Assigned
|
Official
|
|
|
26
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
37
|
TCP
|
UDP
|
Official
|
|
|
38
|
TCP
|
UDP
|
Official
|
|
|
39
|
TCP
|
UDP
|
Resource Location
Protocol (RLP)[24][importance?]—used for determining the
location of higher level services from hosts
on a network
|
Official
|
|
40
|
Reserved
|
Reserved
|
Unassigned
|
Official
|
|
42
|
TCP
|
UDP
|
Official
|
|
|
43
|
TCP
|
UDP
|
Official
|
|
|
49
|
TCP
|
UDP
|
Official
|
|
|
50
|
TCP
|
UDP
|
Official
|
|
|
51
|
Reserved
|
Official
|
||
|
51
|
TCP
|
UDP
|
Previously Interface Message Processor logical
address management[citation needed]
|
Unofficial
|
|
52
|
TCP
|
UDP
|
Xerox Network Systems (XNS) Time Protocol[importance?]
|
Official
|
|
53
|
TCP
|
UDP
|
Domain Name System (DNS)[7]
|
Official
|
|
54
|
TCP
|
UDP
|
Xerox Network Systems (XNS) clearinghouse[importance?]
|
Official
|
|
56
|
TCP
|
UDP
|
Xerox Network Systems (XNS) authentication[importance?]
|
Official
|
|
57
|
TCP
|
UDP
|
Any private terminal access[further explanation needed]
|
Official
|
|
58
|
TCP
|
UDP
|
Xerox Network Systems (XNS) Mail[importance?]
|
Official
|
|
67
|
Assigned
|
UDP
|
Official
|
|
|
68
|
Assigned
|
UDP
|
Bootstrap Protocol (BOOTP) client;[7]
also used by Dynamic Host Configuration Protocol (DHCP)
|
Official
|
|
69
|
Assigned
|
UDP
|
Official
|
|
|
70
|
TCP
|
UDP
|
Official
|
|
|
71–74
|
TCP
|
UDP
|
Official
|
|
|
75
|
TCP
|
UDP
|
Any private dial out service[further explanation needed]
|
Official
|
|
77
|
TCP
|
UDP
|
Any private Remote job entry[further explanation needed]
|
Official
|
|
79
|
TCP
|
Assigned
|
Official
|
|
|
80
|
TCP
SCTP[8]
|
UDP[40]
|
Official
|
|
|
80
|
UDP
|
Unofficial
|
||
|
81
|
N/A
|
N/A
|
Unassigned
|
Official
|
|
81
|
TCP
|
Unofficial
|
||
|
82
|
UDP
|
TorPark control[verification needed]
|
Unofficial
|
|
|
87
|
Any private terminal link[further explanation needed]
|
Official
|
||
|
88
|
TCP
|
Assigned
|
Official
|
|
|
90
|
TCP
|
UDP
|
dnsix (DoD Network Security for
Information Exchange) Securit [sic?] Attribute Token Map[importance?]
|
Official
|
|
90
|
TCP
|
UDP
|
Unofficial
|
|
|
99
|
TCP
|
WIP message protocol[verification needed]
|
Unofficial
|
|
|
100
|
N/A
|
N/A
|
Unassigned (with known unauthorized use[further explanation needed])[1]
|
Official
|
|
101
|
TCP
|
UDP
|
Official
|
|
|
102
|
TCP
|
UDP
|
Official
|
|
|
104
|
TCP
|
UDP
|
Digital Imaging and
Communications in Medicine (DICOM; also port 11112)
|
Official
|
|
105
|
TCP
|
UDP
|
Official
|
|
|
107
|
TCP
|
UDP
|
Remote User Telnet Service (RTelnet)[49]
|
Official
|
|
108
|
TCP
|
UDP
|
IBM Systems Network Architecture (SNA)
gateway access server
|
Official
|
|
109
|
TCP
|
UDP
|
Post Office Protocol, version 2 (POP2)[50]
|
Official
|
|
110
|
TCP
|
Assigned
|
Official
|
|
|
111
|
TCP
|
UDP
|
Open Network Computing
Remote Procedure Call (ONC RPC, sometimes referred to as Sun RPC)
|
Official
|
|
112
|
TCP
|
Unofficial
|
||
|
113
|
TCP
|
Official
|
||
|
113
|
TCP
|
Assigned
|
Authentication Service (auth), the predecessor to identification
protocol. Used to determine a user's identity of a particular TCP connection.[55]
|
Official
|
|
114
|
N/A
|
N/A
|
Unassigned (deprecated since June 2004)[1]
|
Official
|
|
115
|
TCP
|
UDP
|
Official
|
|
|
117
|
TCP
|
UDP
|
UUCP Mapping Project (path service)[citation needed]
|
Official
|
|
118
|
TCP
|
UDP
|
Official
|
|
|
119
|
TCP
|
Assigned
|
Official
|
|
|
123
|
Assigned
|
UDP
|
Network Time Protocol (NTP), used for time
synchronization[7]
|
Official
|
|
126
|
TCP
|
UDP
|
Formerly Unisys Unitary Login, renamed by Unisys to NXEdit. Used by
Unisys Programmer's Workbench for Clearpath MCP, an IDE for Unisys MCP software development
|
Official
|
|
135
|
TCP
|
UDP
|
Official
|
|
|
135
|
TCP
|
UDP
|
Official
|
|
|
137
|
Assigned
|
UDP
|
Official
|
|
|
138
|
TCP
|
UDP
|
Official
|
|
|
139
|
TCP
|
Assigned
|
Official
|
|
|
143
|
TCP
|
Assigned
|
Official
|
|
|
152
|
TCP
|
UDP
|
Official
|
|
|
153
|
TCP
|
UDP
|
Simple Gateway Monitoring Protocol
(SGMP), a protocol for remote inspection and alteration of gateway management
information[64]
|
Official
|
|
156
|
TCP
|
UDP
|
Official
|
|
|
158
|
TCP
|
UDP
|
Official
|
|
|
161
|
Assigned
|
UDP
|
Official
|
|
|
162
|
TCP
|
UDP
|
Official
|
|
|
170
|
TCP
|
UDP
|
Official
|
|
|
177
|
TCP
|
UDP
|
X Display Manager Control Protocol
(XDMCP), used for remote logins to an X Display Manager server[68]
|
Official
|
|
179
|
TCP
SCTP[8]
|
UDP
|
Border Gateway Protocol (BGP),[69]
used to exchange routing and reachability information among autonomous systems (AS) on the Internet
|
Official
|
|
180
|
TCP
|
UDP
|
Official
|
|
|
194
|
TCP
|
UDP
|
Internet Relay Chat (IRC)[70]
|
Official
|
|
199
|
TCP
|
UDP
|
Official
|
|
|
201
|
TCP
|
UDP
|
AppleTalk Routing Maintenance
|
Official
|
|
209
|
TCP
|
UDP
|
Official
|
|
|
210
|
TCP
|
UDP
|
Official
|
|
|
213
|
TCP
|
UDP
|
Official
|
|
|
218
|
TCP
|
UDP
|
Message posting protocol (MPP)
|
Official
|
|
220
|
TCP
|
UDP
|
Internet Message Access Protocol
(IMAP), version 3
|
Official
|
|
259
|
TCP
|
UDP
|
Efficient Short Remote Operations (ESRO)
|
Official
|
|
262
|
TCP
|
UDP
|
Arcisdms
|
Official
|
|
264
|
TCP
|
UDP
|
Official
|
|
|
280
|
TCP
|
UDP
|
http-mgmt
|
Official
|
|
300
|
TCP
|
ThinLinc Web Access
|
Unofficial
|
|
|
308
|
TCP
|
Novastor Online Backup
|
Official
|
|
|
311
|
TCP
|
Official
|
||
|
318
|
TCP
|
UDP
|
PKIX Time Stamp Protocol (TSP)
|
Official
|
|
319
|
UDP
|
Precision Time Protocol (PTP) event
messages
|
Official
|
|
|
320
|
UDP
|
Precision Time Protocol (PTP) general
messages
|
Official
|
|
|
350
|
TCP
|
UDP
|
Mapping of Airline
Traffic over Internet Protocol (MATIP) type A
|
Official
|
|
351
|
TCP
|
UDP
|
MATIP type B
|
Official
|
|
356
|
TCP
|
UDP
|
cloanto-net-1 (used by Cloanto Amiga Explorer and VMs)
|
Official
|
|
366
|
TCP
|
UDP
|
On-Demand Mail Relay (ODMR)
|
Official
|
|
369
|
TCP
|
UDP
|
Rpc2portmap
|
Official
|
|
370
|
TCP
|
codaauth2, Coda authentication server
|
Official
|
|
|
370
|
UDP
|
codaauth2, Coda authentication server
|
Official
|
|
|
370
|
UDP
|
Official
|
||
|
371
|
TCP
|
UDP
|
ClearCase albd
|
Official
|
|
383
|
TCP
|
UDP
|
HP data alarm manager
|
Official
|
|
384
|
TCP
|
UDP
|
A Remote Network Server System
|
Official
|
|
387
|
TCP
|
UDP
|
Official
|
|
|
389
|
TCP
|
Assigned
|
Official
|
|
|
399
|
TCP
|
UDP
|
Digital Equipment Corporation DECnet (Phase
V+) over TCP/IP
|
Official
|
|
401
|
TCP
|
UDP
|
Official
|
|
|
427
|
TCP
|
UDP
|
Official
|
|
|
433
|
TCP
|
UDP
|
NNSP, part of Network News Transfer Protocol
|
Official
|
|
434
|
TCP
|
UDP
|
Official
|
|
|
443
|
TCP
SCTP[8]
|
Assigned
|
Official
|
|
|
443
|
UDP
|
QUIC
(from Chromium) for HTTPS
|
Unofficial
|
|
|
444
|
TCP
|
UDP
|
Official
|
|
|
444
|
TCP
|
Well known Slither.io
port
|
Unofficial
|
|
|
445
|
TCP
|
UDP
|
Microsoft-DS Active
Directory,[75]
Windows shares
|
Official
|
|
445
|
TCP
|
Assigned
|
Official
|
|
|
464
|
TCP
|
UDP
|
Kerberos Change/Set password
|
Official
|
|
465
|
TCP
|
URL Rendezvous Directory for SSM (Cisco protocol)
|
Official
|
|
|
465
|
TCP
|
Unofficial
|
||
|
475
|
TCP
|
UDP
|
tcpnethaspsrv, Aladdin Knowledge Systems Hasp services
|
Official
|
|
491
|
TCP
|
Unofficial
|
||
|
497
|
TCP
|
UDP
|
Official
|
|
|
500
|
Assigned
|
UDP
|
Official
|
|
|
502
|
TCP
|
UDP
|
Modbus Protocol
|
Official
|
|
504
|
TCP
|
UDP
|
Citadel, multiservice protocol for dedicated clients
for the Citadel groupware system
|
Official
|
|
510
|
TCP
|
UDP
|
FirstClass Protocol (FCP), used by FirstClass
client/server groupware system
|
Official
|
|
512
|
TCP
|
Rexec, Remote Process Execution
|
Official
|
|
|
512
|
UDP
|
comsat, together with biff
|
Official
|
|
|
513
|
TCP
|
Official
|
||
|
513
|
UDP
|
Who[76]
|
Official
|
|
|
514
|
TCP
|
Remote Shell, used to execute non-interactive
commands on a remote system (Remote Shell, rsh, remsh)
|
Official
|
|
|
514
|
UDP
|
Official
|
||
|
515
|
TCP
|
Assigned
|
Line Printer Daemon (LPD),[7]
print service
|
Official
|
|
517
|
UDP
|
Talk
|
Official
|
|
|
518
|
UDP
|
NTalk
|
Official
|
|
|
520
|
TCP
|
efs, extended file name server
|
Official
|
|
|
520
|
UDP
|
Official
|
||
|
521
|
UDP
|
Official
|
||
|
524
|
TCP
|
UDP
|
NetWare Core Protocol (NCP) is used for a
variety things such as access to primary NetWare server resources, Time
Synchronization, etc.
|
Official
|
|
525
|
UDP
|
Timed, Timeserver
|
Official
|
|
|
530
|
TCP
|
UDP
|
Remote procedure call (RPC)
|
Official
|
|
531
|
TCP
|
UDP
|
Unofficial
|
|
|
532
|
TCP
|
Assigned
|
netnews[7]
|
Official
|
|
533
|
UDP
|
netwall, For Emergency Broadcasts
|
Official
|
|
|
540
|
TCP
|
Unix-to-Unix Copy Protocol (UUCP)
|
Official
|
|
|
542
|
TCP
|
UDP
|
commerce (Commerce Applications)
|
Official
|
|
543
|
TCP
|
klogin, Kerberos login
|
Official
|
|
|
544
|
TCP
|
kshell, Kerberos Remote shell
|
Official
|
|
|
546
|
TCP
|
UDP
|
DHCPv6 client
|
Official
|
|
547
|
TCP
|
UDP
|
DHCPv6 server
|
Official
|
|
548
|
TCP
|
Assigned
|
Official
|
|
|
550
|
TCP
|
UDP
|
new-rwho, new-who[76]
|
Official
|
|
554
|
TCP
|
UDP
|
Official
|
|
|
556
|
TCP
|
Remotefs, RFS, rfs_server
|
Official
|
|
|
560
|
UDP
|
rmonitor, Remote Monitor
|
Official
|
|
|
561
|
UDP
|
monitor
|
Official
|
|
|
563
|
TCP
|
UDP
|
Official
|
|
|
564
|
TCP
|
Unofficial
|
||
|
585
|
N/A
|
N/A
|
De-registered since April 2006 (with recommendation to use
port 993 instead)[1]
|
Official
|
|
585
|
TCP
|
?
|
Unofficial
|
|
|
587
|
TCP
|
Assigned
|
Official
|
|
|
591
|
TCP
|
FileMaker 6.0 (and later) Web Sharing (HTTP Alternate,
also see port 80)
|
Official
|
|
|
593
|
TCP
|
UDP
|
HTTP RPC Ep Map, Remote procedure call over Hypertext Transfer Protocol, often
used by Distributed Component Object Model
services and Microsoft Exchange Server
|
Official
|
|
601
|
TCP
|
Reliable Syslog Service — used for system logging
|
Official
|
|
|
604
|
TCP
|
Official
|
||
|
623
|
UDP
|
ASF Remote Management and Control Protocol (ASF-RMCP)
& IPMI Remote Management Protocol
|
Official
|
|
|
625
|
TCP
|
Open Directory Proxy (ODProxy)[7]
|
Unofficial
|
|
|
631
|
TCP
|
UDP
|
Official
|
|
|
631
|
TCP
|
UDP
|
Common Unix Printing System (CUPS)
administration console (extension to IPP)
|
Unofficial
|
|
635
|
TCP
|
UDP
|
RLZ DBase
|
Official
|
|
636
|
TCP
|
UDP
|
Official
|
|
|
639
|
TCP
|
UDP
|
Official
|
|
|
641
|
TCP
|
UDP
|
SupportSoft Nexus Remote Command (control/listening), a
proxy gateway connecting remote control traffic
|
Official
|
|
643
|
TCP
|
UDP
|
SANity
|
Official
|
|
646
|
TCP
|
UDP
|
Label Distribution Protocol (LDP), a
routing protocol used in MPLS networks
|
Official
|
|
647
|
TCP
|
DHCP Failover protocol[80]
|
Official
|
|
|
648
|
TCP
|
Registry Registrar Protocol (RRP)[81]
|
Official
|
|
|
651
|
TCP
|
UDP
|
IEEE-MMS
|
Official
|
|
653
|
TCP
|
UDP
|
SupportSoft Nexus Remote Command (data), a proxy gateway
connecting remote control traffic
|
Official
|
|
654
|
TCP
|
Media Management System (MMS) Media Management Protocol
(MMP)[82]
|
Official
|
|
|
655
|
TCP
|
UDP
|
Tinc VPN daemon
|
Official
|
|
657
|
TCP
|
UDP
|
IBM
RMC (Remote monitoring and Control) protocol, used by System
p5 AIX
Integrated Virtualization Manager (IVM)[83]
and Hardware Management Console to
connect managed logical
partitions (LPAR) to enable dynamic partition reconfiguration
|
Official
|
|
660
|
TCP
|
Assigned
|
Official
|
|
|
666
|
TCP
|
UDP
|
Doom, first online first-person shooter
|
Official
|
|
666
|
TCP
|
airserv-ng,
aircrack-ng's
server for remote-controlling wireless devices
|
Unofficial
|
|
|
674
|
TCP
|
Official
|
||
|
688
|
TCP
|
UDP
|
REALM-RUSD (ApplianceWare Server Appliance Management
Protocol)
|
Official
|
|
690
|
TCP
|
UDP
|
Velneo Application Transfer Protocol (VATP)
|
Official
|
|
691
|
TCP
|
Official
|
||
|
694
|
TCP
|
UDP
|
Linux-HA high-availability heartbeat
|
Official
|
|
695
|
TCP
|
Official
|
||
|
698
|
UDP
|
Optimized Link State Routing
(OLSR)
|
Official
|
|
|
700
|
TCP
|
Extensible Provisioning Protocol
(EPP), a protocol for communication between domain name registries and registrars (RFC 5734)
|
Official
|
|
|
701
|
TCP
|
Link Management Protocol (LMP),[85]
a protocol that runs between a pair of nodes and is used to manage traffic engineering (TE) links
|
Official
|
|
|
702
|
TCP
|
Official
|
||
|
706
|
TCP
|
Official
|
||
|
711
|
TCP
|
Official
|
||
|
712
|
TCP
|
Official
|
||
|
749
|
TCP
|
UDP
|
Kerberos (protocol) administration[7]
|
Official
|
|
750
|
UDP
|
kerberos-iv, Kerberos version IV
|
Official
|
|
|
751
|
TCP
|
UDP
|
kerberos_master, Kerberos authentication
|
Unofficial
|
|
752
|
UDP
|
passwd_server, Kerberos password (kpasswd) server
|
Unofficial
|
|
|
753
|
TCP
|
Reverse Routing Header (RRH)[93]
|
Official
|
|
|
753
|
UDP
|
Reverse Routing Header (RRH)
|
Official
|
|
|
753
|
UDP
|
userreg_server, Kerberos userreg server
|
Unofficial
|
|
|
754
|
TCP
|
tell send
|
Official
|
|
|
754
|
TCP
|
krb5_prop, Kerberos v5 slave propagation
|
Unofficial
|
|
|
754
|
UDP
|
tell send
|
Official
|
|
|
760
|
TCP
|
UDP
|
krbupdate [kreg], Kerberos registration
|
Unofficial
|
|
782
|
TCP
|
Conserver serial-console management server
|
Unofficial
|
|
|
783
|
TCP
|
SpamAssassin spamd daemon
|
Unofficial
|
|
|
800
|
TCP
|
UDP
|
mdbs-daemon
|
Official
|
|
808
|
TCP
|
Microsoft Net.TCP Port Sharing Service
|
Unofficial
|
|
|
829
|
Yes
|
Assigned
|
Official
|
|
|
830
|
TCP
|
UDP
|
Official
|
|
|
831
|
TCP
|
UDP
|
NETCONF over BEEP
|
Official
|
|
832
|
TCP
|
UDP
|
Official
|
|
|
833
|
TCP
|
UDP
|
NETCONF for SOAP over BEEP
|
Official
|
|
843
|
TCP
|
Unofficial
|
||
|
847
|
TCP
|
DHCP Failover protocol
|
Official
|
|
|
848
|
TCP
|
UDP
|
Group Domain Of Interpretation (GDOI) protocol
|
Official
|
|
853
|
TCP
|
UDP
|
Official
|
|
|
860
|
TCP
|
Official
|
||
|
861
|
TCP
|
UDP
|
OWAMP control (RFC 4656)
|
Official
|
|
862
|
TCP
|
UDP
|
TWAMP control (RFC 5357)
|
Official
|
|
873
|
TCP
|
rsync
file synchronization protocol
|
Official
|
|
|
888
|
TCP
|
cddbp, CD DataBase (CDDB) protocol
(CDDBP)
|
Unofficial
|
|
|
888
|
TCP
|
IBM Endpoint Manager Remote Control
|
Unofficial
|
|
|
897
|
TCP
|
UDP
|
Brocade SMI-S RPC
|
Unofficial
|
|
898
|
TCP
|
UDP
|
Brocade SMI-S RPC SSL
|
Unofficial
|
|
902
|
TCP
|
UDP
|
Unofficial
|
|
|
903
|
TCP
|
Unofficial
|
||
|
953
|
TCP
|
Official
|
||
|
954–988
|
N/A
|
N/A
|
Unassigned
|
Official
|
|
981
|
TCP
|
Remote HTTPS management for firewall devices running
embedded Check Point VPN-1 software[100]
|
Unofficial
|
|
|
987
|
TCP
|
Unofficial
|
||
|
989
|
TCP
|
UDP
|
Official
|
|
|
990
|
TCP
|
UDP
|
Official
|
|
|
991
|
TCP
|
UDP
|
Official
|
|
|
992
|
TCP
|
UDP
|
Official
|
|
|
993
|
TCP
|
Assigned
|
Official
|
|
|
994
|
Reserved
|
Reserved
|
Reserved
|
Official
|
|
994
|
TCP
|
UDP
|
Unofficial
|
|
|
995
|
TCP
|
UDP
|
Official
</ref> || Unofficial
|
|
|
1010
|
TCP
|
Unofficial
|
||
|
1023
|
Reserved
|
Reserved
|
Reserved[1]
|
Official
|
Thứ Hai, 13 tháng 11, 2017
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