| Author |
Today's question is wrong..FTP port number is?
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| x10x10 2002-08-15, 12:37 pm |
| Today's Inet+ question is wrong!!!!
Question Inetplusqod55
What is the default port for FTP?
A) 21
B) 23
C) 25
D) 27
Correct answer: B
Explanation: 23. Protocol 23 is the default port for FTP.
Correct information is:
port 20 is FTP data transfer
port 21 is FTP control
port 23 is Telnet | |
| Mr. Linux Guy 2002-08-15, 2:27 pm |
| Agreed. | |
| Pavlov 2002-08-15, 3:48 pm |
| Right you are - lots of errors in the questions of the day, I've noticed. | |
| cross36 2002-08-17, 3:36 pm |
| You'll never ge 100% on anything. That's why it's good we ask and reference for the backup answers. | |
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| quote:
Originally posted by x10x10
Today's Inet+ question is wrong!!!!
Question Inetplusqod55
What is the default port for FTP?
A) 21
B) 23
C) 25
D) 27
Correct answer: B
Explanation: 23. Protocol 23 is the default port for FTP.
Correct information is:
port 20 is FTP data transfer
port 21 is FTP control
port 23 is Telnet
agree
21 is default for ftp.
sometime 22 | |
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| FTP is a layer 7 protocol that is a part of the TCP/IP suite. It uses TCP ports 20 and 21 at layer four to create the socket and threfore enable the connection to the proper application. One port is used to send the commands like get and put, and the other is used for the actual transfer of the data.
Remember that a socket is made of an IP address, a port number and a layer four protocol...
I hope this helps  | |
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| quote:
Originally posted by Pavlov
errr... actually, it's sometimes 20 - Port 22 is opened for programs such as PC-Anywhere, not FTP - FTP is 20 and 21 - have a look at this:
http://compnetworking.about.com/gi/...Fport-num.shtml
Ough!! agree
i remember 20 / 21 for ftp, 22 for SSH authentication on PC Anywhere and 23 for telnet.... 25 for smtp, etc.... | |
| darthfeces 2002-09-08, 8:20 pm |
| 22 tcp/udp is reserved for ssh
here's the list of well known ports
keep in mind that you can configure anything
to listen on any port you want, but you'll cause
obvious problems with the sevices known to use them.
http://www.iana.org/assignments/port-numbers | |
| cm2gj 2002-09-08, 11:53 pm |
| quote:
Originally posted by darthfeces
22 tcp/udp is reserved for ssh
here's the list of well known ports
keep in mind that you can configure anything
to listen on any port you want, but you'll cause
obvious problems with the sevices known to use them.
http://www.iana.org/assignments/port-numbers
thanks for the list |
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