What did you do about port 20? You might want to use Passive ftp. Naresh --- Manish K Arya <[EMAIL PROTECTED]> wrote: > hi > actully authentication will be done on local ftp > server and gw proxy will just ensure that username > and remote host/network is not in block list of > firewall.till now i am able to get login prompt from > local ftp server thru my gw proxy and authenticate > user,but after auth if i try to give any command it > says "cannot establish data connection" > i just want to use restriction on users and > commands and redirect what ever comes on port 21 of > gw proxy to local ftp server. > > --- > Manish Kumar Arya > > > On Fri, 19 Apr 2002 15:25:29 > Binand Raj S. wrote: > >On Friday 19 Apr 2002 3:15 pm, Manish K Arya wrote: > >> hi > >> we are writing a transparent ftp proxy. our > aim is to write a proxy code > >> that sits on gateway and provides proxy > services(logging,auth,filtering > >> etc). when ever a user from external n/w does ftp > on gateway,our proxy > >> program forwards that request to some internal > ftp server after validating > >> remote user and machine.means if user does ftp on > gw he/she gets login > >> prompt from some internal ftp server.when user > does login he get > >> authenticated from internal ftp server. but at > this stage there is a > >> problem now if we try to give some commnd from > ftp client.we get error like > >> no data connection. what can we do for > establishing data connection after > >> auth. > > > >Your mail is not very clear. You say your proxy > provides authentication > >services, and that it validates the remote user and > machine. But you also > >say that the login prompt and authentication is > that of the internal FTP > >server. Which is it? > > > >Also, do you understand the FTP protocol? > Specifically, do you know that > >it has a quirk in that it requires a control > connection and a data connection? > >Also, about active and passive FTP? > > > >BInand > > > > > >_______________________________________________ > >linux-india-programmers mailing list > >[EMAIL PROTECTED] > >https://lists.sourceforge.net/lists/listinfo/linux-india-programmers > > > > > See Dave Matthews Band live or win a signed guitar > http://r.lycos.com/r/bmgfly_mail_dmb/http://win.ipromotions.com/lycos_020201/splash.asp > > > > ================================================ > To subscribe, send email to [EMAIL PROTECTED] > with subscribe in subject header > To unsubscribe, send email to [EMAIL PROTECTED] > with unsubscribe in subject header > Archives are available at > http://www.mail-archive.com/ilugd%40wpaa.org > > ================================================= >
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