Hopefully I am reading this right, but let me first start a response by being
the evangelist.
1) Your best course of action is to change the firewall rules to allow your
connection in/out. I'm not sure which way you are going here. If you don't
control the firewall, you shouldn't be trying to circumvent it (university,
corporate environment, etc).
2) Don't use FTP, use SFTP/SCP/SSH for file transfers. I say this just in case
this is from your machine to your server. If you don't control all of it,
ignore this. :)
Now into more meaty substance...
3) I prefer using PuTTY for port redirection. But be aware that if you are
redirecting your machine's FTP client to be off port 21, you need to be
connecting to something remote that can understand your connection or get you
back to port 21. For example, I can route my outbound FTP traffic using PuTTY
from port 21 to port 80. But you need to have the server FTP listening on port
80, or something beyond the firewall that will accept that port 80 FTP
connection, and proxy it over to port 21 again, and into the target server.
4) Typically, any SSH proxy tutorial or setup will be able to support FTP
traffic. Most of those setups are traffic-independent, meaning you can proxy
anything you want through it. Try Googling "SSH proxy tutorial" without the
quotes, or perhaps even include FTP to see if you can get lucky.
I will say that if you are the FTP client and want to connect to an FTP server
you do not own, you're going to need the FTP server owner to assist you, the
firewall owner to allow you, or a buddy (third party) to act as the proxy.
<-snip->
I have used redir(http://anhedonia.sammy.net/~sammy/hacks/) for port
redirector for security reason. So I can connect the ftp server only
through redir installed server.
Because, firewall permit only by redir installed server.
But I'm afraid redir doesn't work well, so whenever I find the error, I
should restart the process.
Is there any recommendable port redirector which supports ftp service?
I can find lots of programs, but most programs are not supported ftp
service.
Surely, I know VPN is a best soluton, but I can't use VPN for some reason.
Thanks for your time..
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