Date: Tue, 25 May 1999 10:04:55 -0500 From: =?iso-8859-1?Q?Alejandro_Ram=EDrez?= <ales@megared.net.mx> To: "Ed Keith" <edk@kew.com> Cc: "freebsd-questions" <freebsd-questions@FreeBSD.ORG> Subject: RE: which ftp proxy? Message-ID: <014801bea6bf$fb8033c0$f9a3f9cf@megared.net.mx> References: <37488BDD.DDB88F1D@kew.com> <01f701bea602$067c2fe0$f9a3f9cf@megared.net.mx> <374A270C.E7FF8E42@kew.com>
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Hi, If you are behind a firewall, and the ports: ftp-data 20/tcp #File Transfer [Default Data] ftp-data 20/udp #File Transfer [Default Data] ftp 21/tcp #File Transfer [Control] ftp 21/udp #File Transfer [Control] aren´t specifically blocked out by your system administrator (that i don´t think they are), you must use the "passive" mode in ftp transfers, the "passive" mode must be used always that you are behind a firewall, this is a rule to have a good ftp session, if your system administrator did specifically blocked out this ports, you may ask him to unblock them out (in /etc/rc.firewall), since this is simpler than to install a proxy server. And if you want to have more security in your network, and you have already configured ipfw, then you may try to enable "natd" (network address translation), it will let you have private ip addresses in your network and go outside with a public address for all of your machines (instead of installing a proxy server) but you still will have to use the "passive" mode in ftp transfers. Ales ----- Original Message ----- From: Ed Keith <edk@kew.com> To: Alejandro Ramírez <ales@megared.net.mx> Cc: freebsd-questions <freebsd-questions@FreeBSD.ORG> Sent: Monday, May 24, 1999 11:29 PM Subject: Re: which ftp proxy? > I don't think that will help since all packets are blocked by the firewall. > I think I need to use a proxy server. But I don't know which one would be > best for my needs. (very small network, light volume, newbe site admin., > paranoid domain administrator who may want me to justify why I picked the one > decide to use.) > > -EdK > > > Alejandro Ramírez wrote: > > > Hi, > > > > Try the "passive" option in the ftp program. > > > > Ales > > > > ----- Original Message ----- > > From: Ed Keith <edk@kew.com> > > To: freebsd-questions <freebsd-questions@FreeBSD.ORG> > > Sent: Sunday, May 23, 1999 6:14 PM > > Subject: which ftp proxy? > > > > > I'm running FreeBSD 2.28 and ipfw. I want to install an ftp proxy so I > > > can connect to ftp sites from behind the firewall. What is recommended? > > > > > > Thanks in advance, > > > -EdK > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-questions" in the body of the message > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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