i have a problem with users accessing my ftp service from the internet. everything was working well until i changed from Linux/shorewall to freebsd/ipfw as my firewall.
my setup is briefly as follows:
FTP_Server (10.0.0.1) --- Firewall (IPFW) ----- INTERNET
The linux rules were just two (and were working):
allow tcp from any to 10.0.0.1 21 allow tcp from 10.0.0.1 21 to any
I have the following in ipfw but they have refused to work!
ipfw add 00010 allow tcp from any to 10.0.0.1 21 ipfw add 00011 allow tcp from 10.0.0.1 21 to any
The problem is that an ftp session is established, but when the session enters passive mode, the ftp session hangs. Are there any other ports that need to be opened? Has anyone had such a problem before? I can see in the logs that unprivileged ports are responding from the ftp server to the requestor - but have tried all combinations of rules to no avail!
You need to use port 20 too. Additionally, passive ftp uses high number ports to actually transfer the data. I am not sure how to do this with IPFW but there are are a number of tutorials about this try google.
I have failed to get nothing from google - its seems everyone has tried series of combinations!
Anyway, here is my rules:
ipfw add 00115 pass log tcp from any 1024-65535 to 10.0.0.1 49152-65535
ipfw add 00116 pass log tcp from any to 10.0.0.1 21 in recv sis1 setup keep-state
ipfw add 00117 pass log tcp from any to 10.0.0.1 20 in recv sis1 setup keep-state
but this hasnt helped much. have been trying for days! does anyone have rules that are working - you can give 'em to me - or advise where the above rules need tweaking.
rgds clem. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
