restrictive ipfw ruleset and ftp

2003-06-17 Thread Andrew Thomson
any suggestions would be great. i have a restrictive ipfw ruleset that works great.. it only allows incoming connections that i allow and outgoing connections allow. i have a list of ports that i let my users go out on: 80, 22, 143, 443 etc etc.. All the stuff they might need to do. how can i

Re: restrictive ipfw ruleset and ftp

2003-06-17 Thread bsd
Andrew Thomson writes: any suggestions would be great. i have a restrictive ipfw ruleset that works great.. it only allows incoming connections that i allow and outgoing connections allow. i have a list of ports that i let my users go out on: 80, 22, 143, 443 etc etc.. All the stuff they

Re: restrictive ipfw ruleset and ftp

2003-06-17 Thread Jaime
On Tue, 17 Jun 2003, Andrew Thomson wrote: how can i handle passive ftp though? i can let 21 out, but when the remote ftp server says use this x high port.. i block that because it's not in my list. so what can i do to get around this.. IIRC, FTP sends its replies on TCP port 20. I

Re: restrictive ipfw ruleset and ftp

2003-06-17 Thread bsd
Jaime writes: IIRC, FTP sends its replies on TCP port 20. I can't recall if that is port 20 on the remote or local host, though. A little experimentation and you'll probably figure it out. (hint: netstat -nf inet) That's true of non-passive mode connections (FTP server port 20 to FTP

Re: restrictive ipfw ruleset and ftp

2003-06-17 Thread Bill Moran
Andrew Thomson wrote: any suggestions would be great. i have a restrictive ipfw ruleset that works great.. it only allows incoming connections that i allow and outgoing connections allow. i have a list of ports that i let my users go out on: 80, 22, 143, 443 etc etc.. All the stuff they might

RE: restrictive ipfw ruleset and ftp

2003-06-17 Thread FBSD_User
9:08 AM To: Andrew Thomson Cc: [EMAIL PROTECTED] Subject: Re: restrictive ipfw ruleset and ftp Andrew Thomson wrote: any suggestions would be great. i have a restrictive ipfw ruleset that works great.. it only allows incoming connections that i allow and outgoing connections allow. i have

Re: restrictive ipfw ruleset and ftp

2003-06-17 Thread Kirk Strauser
At 2003-06-17T12:13:46Z, Andrew Thomson [EMAIL PROTECTED] writes: i have a list of ports that i let my users go out on: 80, 22, 143, 443 etc etc.. Out of curiosity, do you have control over the set of machines that your users are connecting to? I.e., are they uploading to your own FTP server

Re: restrictive ipfw ruleset and ftp

2003-06-17 Thread Chuck Swiger
[EMAIL PROTECTED] wrote: [ ... ] PS: does anyone know what the correct terminology for FTP's non-passive mode is? I sometimes refer to active mode when talking FTP (because that term somehow got stuck in my head once upon a time), but I usually get some very curious/confused looks when I talk