Re: FTP over NCAT

FTP and SFTP are principally different protocols so using a client for 
one to really talk the other is not going to work.

Secondarily, FTP is a complex protocol that involves secondary TCP 
connections (data channels) managed through a primary TCP connection 
(control channel). Because of this complexity, the protocol is not well 
suited for traversing simple TCP proxies.

Cheers,
nnposter


On 1/5/19 6:43 PM, Siva wrote:
> NMAP team
>    Could u please advice syntax for using ncat to use proxy to download 
> files from a external ftp host ?
> 
> While the following is working for destinations on port 22 - sftp, i am 
> unable to reach a ftp destination using this syntax.
> 
> Could you please advice ?
> 
> sftp -v -oPort=21 "ProxyCommand=/usr/bin/ncat -v --proxy $proxy_server 
> --proxy-type socks5 --proxy-auth $proxy_user:$proxy_pwd %h %p" 
> $ftp_user@$ftp_host
> 
> Regards
> Siva
> 
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