ftp port 21 problem

[mydnsnet]

We are facing problem for ftp port 21 connection.
We can not connect to ftp server using port 21.

We have stopped iptables and apf, but still can not connect to port 21.
We have telnet port 21 at server side, no problem at all.

Then we change the ftp port to 20 and working fine.

Anyone facing this problem?
Do you know what else server program that blocking port 21?

[FreedomBI]

Do you have both 20 and 21 open at the firewall? FTP uses both.

[mydnsnet]

Yes, port 20 and 21 are open for connection.

[Ghulam Yaseen]

Hello ,

Can you please flsuh the iptables and apf and then try again.

[Humayun]

Hello

Can you please flsuh the iptables and apf and then try again.

Or if the ports are not in added in apf listning ports ? how can i flush it ?

[Ghulam Yaseen]

Hi Humayun ,

Please read the full page and then ask the question as it is written ther that the ports are open, means the entries are added in apf and iptables.
what i mean is that there may be some rules within the apf and iptables which restricts the ftp connection to be made on ftp port 21.
i hope you understood

Hello


Or if the ports are not in added in apf listning ports ? how can i flush it ?

[farazahmed]

Hello Dear

I total agree with you but my and Humayun question is if server is blank and there is no firewall so how can we flsuh the iptables and apf.?

Regards
Your Client