Every possible Port Assignment

Port Assignments for Common Ports:

Port UDP TCP Definition
7 x x echo
9 x x discard
11 x x systat
13 x x daytime
17 x x quote of the day
19 x character generator
20 x ftp - data
21 x ftp - control
23 x telnet
25 x smtp mail transfer
37 x x timeserver
39 x rlp resource location
42 x x nameserver
43 x nicname whois
53 x x dommainlein name server
67 x bootpc bootstrap protocol
68 x bootpc bootstrap protocol
69 x tftp trivial file transfer
70 x gopher
79 x finger
80 x http
88 x x kerberos
101 x hostname nic
102 x iso-tsap class 0
107 x rtelnet
109 x pop2
110 x pop3
111 x x sunrpc
113 x identification protocol
117 x uucp
119 x nntp
123 x ntp
135 x x epmap
137 x x netbios - name service
138 x netbios - dgm
139 x netbios - ssn
143 x imap
158 x pcmail - srv
161 x snmp
162 x snmptrap
170 x print - srv
179 x border gateway protocol
194 x irc internet relay chat
213 x ipx
389 x ldap
443 x x https (ssl)
445 x x microsoft - ds
464 x x kpasswd
500 x isakmp key exchange
512 x x remote execute
513 x x login / who
514 x x shell cmd / syslog
515 x printer spooler
517 x talk
518 x ntalk
520 x x router / efs
525 x timeserver
526 x tempo
530 x rpc
531 x conference chat
532 x netnews newsreader
533 x netwall
540 x uucp
543 x klogin
544 x kshell
550 x new - rwho
556 x remotefs
560 x rmonitor
561 x monitor
636 x ldaps over tls/ssl
666 x x doom id software
749 x x kerberos administration
750 x kerveros version iv
1109 x kpop
1167 x phone
1433 x x ms - sql - server
1434 x x ms - sql - monitor
1512 x x wins
1524 x ingreslock
1701 x l2tp
1723 x pptp point to point
1812 x radius authentication
1813 x radius accounting
2049 x nfs server
2053 x kerberos de - multiplexor
9535 x man remote server

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Comments

Pavlov

What about port 22?

remote connections - used for apps such as PCAnywhere.

bellboy

man, that's a lot of ports.

are these useful for exams other than network+ and i-net+?

Cross

I can't say that all do need to be noted, but if ever we become Guru's in IT. These are the ports we face.
Pav Port 22 well noted

Pavlov

bellboy - these are useful for real life!

And yes, you can expect to see them again along the MCSE track. That's why it's good to have the A+ and Net+ foundation before heading into the MCSE.

OvidiuT

Port 22 is used by the ssh, most frequent in Linux.

RussS

Nice list

Better add ...

1071 – L2TP (UDP)
1293 – IPSec (TCP & UDP)

3389 – Windows Terminal Services (RDP protocol)
4500 – ISAKMP/IKE (with NAT)

dan_9141

The attached is a link for the Internet Assigned Number Authority (IANA)
http://www.iana.org/assignments/port-numbers

mgmguy1

This is some good info on ports.
Thanks Guys

Mthobisile

This is really helpful I always mixed port numbers bt after this article Im a guru.
thanks a million to the authors

THANKS A LOT RussS your contribution really helped me

RussS

Happy to assist Mthobisile

m3zilla

Mthobisile wrote: »

This is really helpful I always mixed port numbers bt after this article Im a guru.
thanks a million to the authors

THANKS A LOT RussS your contribution really helped me

Is this suppose to be a serious post?

TheShadow

m3zilla wrote: »

Is this suppose to be a serious post?

I wondered myself since dan_9141 posted the official registery listing at

Service Name and Transport Protocol Port Number Registry

By long time agreement manufacturers normally adhere to RFC6335 or they don't follow it at their own peril.

There are also the original ones embedded in the PC BIOS but those really disappear after the switch to protected mode