The server listens on port 21 for the control info, and listens on port 20 for the data transfers.
On Wed, 16 Jan 2002, Julian Opificius wrote: > Cheers Robert. Is it always port 20? Somehow I thought that a different > port was opened up for every simultaneous connection. > > I sense the imminent need to purchase another O'Reilly book ... ;-) > > julian. > > > At 09:35 PM 1/16/02, you wrote: > >One port's for control and one's for data: > > > >make sure you check this out: "cat /etc/services | grep ftp" > > > >Rob > > > > > >-----Original Message----- > >From: [EMAIL PROTECTED] > >[mailto:[EMAIL PROTECTED]]On Behalf Of Julian Opificius > >Sent: Wednesday, January 16, 2002 7:12 PM > >To: [EMAIL PROTECTED] > >Subject: Re: NAT and FTP > > > > > >Why's that? > > > >j. > >=================== > >At 08:58 PM 1/16/02, you wrote: > > >You might want to open up port 20, as well. > > > > > >On Wed, 16 Jan 2002, Julian Opificius wrote: > > > > > > > Hi folks, > > > > > > > > I'm using NAT on my Cisco 678 DSL modem, to connect my real IP into my > > > > private LAN. > > > > I want to run an FTP server on my Linux box, accessible from the outside > > > > world. I know I have to open up port 21, 'cos it's the FTP control port, > > > > but do I have to open up any other ports in order to allow data > >transfers? > > > > > > > > julian. > > > > > > > > ---------------------------------------------------------------- > > > > Just because I'm paranoid doesn't mean they aren't after me ... > > > > > > > > Julian Opificius. ICQ 3268206. > > > > ---------------------------------------------------------------- > > > > > > > > > > > > > > > > _______________________________________________ > > > > Redhat-list mailing list > > > > [EMAIL PROTECTED] > > > > https://listman.redhat.com/mailman/listinfo/redhat-list > > > > > > > > > > > > > > > >_______________________________________________ > > >Redhat-list mailing list > > >[EMAIL PROTECTED] > > >https://listman.redhat.com/mailman/listinfo/redhat-list > > > >---------------------------------------------------------------- > >Just because I'm paranoid doesn't mean they aren't after me ... > > > >Julian Opificius. ICQ 3268206. > >---------------------------------------------------------------- > > > > > > > >_______________________________________________ > >Redhat-list mailing list > >[EMAIL PROTECTED] > >https://listman.redhat.com/mailman/listinfo/redhat-list > > > > > > > >_______________________________________________ > >Redhat-list mailing list > >[EMAIL PROTECTED] > >https://listman.redhat.com/mailman/listinfo/redhat-list > > ---------------------------------------------------------------- > From my wife: "I'm not playing mind games with you, I'm just making you > think I'm playing mind games with you ..." > > Julian Opificius. ICQ 3268206. > ---------------------------------------------------------------- > > > > _______________________________________________ > Redhat-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list > _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
