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Old 07-16-2008, 05:13 AM   #1
chobo
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Question ftp: connect :Unknown error number


Dear ..

i have problem after installed NcFTPd on fedora 7

it can not do ftp from the outside , here the problem accured when tried to ftp from DOS Mode of windows

C:\Documents and Settings\De2jen>ftp 202.xx.xx.xx
> ftp: connect :Unknown error number


so The probles IS ftp: connect :Unknown error number


please .. help me how to fix it this case


thanks a lot ...


regards


chobo
 
Old 07-16-2008, 06:10 AM   #2
murugesan
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It seems the port number is not the correct port number.
Consider the following command:
Code:
ftp
ftp>open 202.xx.xx.xx:22
> ftp: connect :Unknown error number
ftp>open 202.xx.xx.xx:21
Connected to 202.xx.xx.xx.
...etc
 
Old 07-16-2008, 06:47 AM   #3
nx5000
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Does
telnet 202.x.x.x 21
gives you a message?
 
Old 07-16-2008, 06:57 AM   #4
chobo
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ftp: connect :Unknown error number

still canot


i tried below ...
C:\>ftp
ftp> open 202.xx.xx.xx:21
Unknown host 202.xx.xx.xx:21.
ftp> open 202.xx.xx.xx:20
Unknown host 202.xx.x.xx:20.
ftp> open 202.xx.xx.xx:22
Unknown host 202.xx.xx.xx:22.

ftp>
until 25 of port number i have tried

he he he

any other sugestion ...

n now i using vsFTPd of FTP server in my FC7

but have same problem ..


thanks
 
Old 07-16-2008, 07:07 AM   #5
nx5000
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Quote:
open 202.xx.xx.xx:21
Unknown host 202.xx.xx.xx:21
Ahah this ftp client is really lame. You can really see Micro$oft strategy with details like this. They had no interest to use standards, they wanted you to use their netbios thing.

Another example:

Quote:
ftp> help open
open Connect to remote tftp
ftp> help close
close Terminate ftp session
Hum.. tftp or ftp ?? make up your mind.

chobo, try the telnet

Last edited by nx5000; 07-16-2008 at 07:08 AM.
 
Old 07-16-2008, 07:11 AM   #6
druuna
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Hi,

This could be related to passive vs active ftp. Try switching to the one you are not using, how to do this depends on the ftp client you are using (the default linux ftp client I use uses the passive command to switch between active and passive).

Hope this helps.

Another thing that came to mind: Are you using a firewall (client and/or server side)?

Last edited by druuna; 07-16-2008 at 07:12 AM.
 
Old 07-16-2008, 07:16 AM   #7
nx5000
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Passive/active has nothing to do with the connection opening (connect from client to server port 21. Nothing else) Passive/active is used after.

Unless this client is really more dumb than anything.
 
Old 07-16-2008, 07:41 AM   #8
druuna
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Hi,
Quote:
Originally Posted by nx5000 View Post
Unless this client is really more dumb than anything.
Which I have seen more then once...... And your 'M$ and lame' comment in your previous post also points in that direction

The OP should at least check this, just to make sure.
 
Old 07-16-2008, 10:44 PM   #9
chobo
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Question

Quote:
Originally Posted by nx5000 View Post
Ahah this ftp client is really lame. You can really see Micro$oft strategy with details like this. They had no interest to use standards, they wanted you to use their netbios thing.

Another example:


Hum.. tftp or ftp ?? make up your mind.

chobo, try the telnet


so . what the solution .... or what can i do to fix it


thanks
 
Old 07-16-2008, 10:57 PM   #10
chobo
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Quote:
Originally Posted by druuna View Post
Hi,

This could be related to passive vs active ftp. Try switching to the one you are not using, how to do this depends on the ftp client you are using (the default linux ftp client I use uses the passive command to switch between active and passive).

Hope this helps.

Another thing that came to mind: Are you using a firewall (client and/or server side)?


i stopped iptables it mean i use no firewall in FC7 ...

n the problem is from my FC ip range it can :
c this

C:\>ftp 202.xxx.xx.xx <-- it mean ip-number of my FC7
Connected to 202.xxx.xx.xx.
220 (vsFTPd 2.0.5)
User (202.xxx.xx.xxnone)): u5
331 Please specify the password.
Password:
230 Login successful.
ftp> ls -l
200 PORT command successful. Consider using PASV.
150 Here comes the directory listing.
226 Directory send OK.
ftp> ls /
200 PORT command successful. Consider using PASV.
150 Here comes the directory listing.
/bin
/boot
/dev
/etc
/home
/lib
/lost+found
/media
/misc
/mnt
/net
/opt
/proc
/root
/sbin
/selinux
/srv
/sys
/tmp
/usr
/var
226 Directory send OK.
ftp: 145 bytes received in 0.01Seconds 9.67Kbytes/sec.
ftp>

-----------------------------------

but if from the outside ( others IP )/ ( other bukding) it accured Unknown error number


what The problem ya ....


thanks ...

Last edited by chobo; 07-16-2008 at 10:58 PM.
 
Old 07-17-2008, 06:09 AM   #11
murugesan
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Shall we know the output of ping:
ping 202.xxx.xx.xx
to know that 202.xxx.xx.xx is accessible from:
Quote:
( others IP )/ ( other bukding)
 
  


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