Iptables problem

[Reindl Harald]

Am 09.03.2013 14:23, schrieb davidschaak1 at mobilicity.blackberry.com:
> Using 
> iptables -A INPUT -p tcp -dport 20 -j ACCEPT

this is a useless problem description at all
since our glass balls are broken

20 is active FTP and will not work until the client's
firewall opens the random port of the ftp-client while
for passive ftp on port 21 the server tells the client
his random port and is responsible via conntrack to allow
the data connection

in other words: these days nobody is using active FTP


here some basics stuff:
http://fetchsoftworks.com/fetch/help/Contents/Concepts/ActiveAndPassive.html

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 263 bytes
Desc: OpenPGP digital signature
URL: <http://lists.fedoraproject.org/pipermail/users/attachments/20130309/811b51b6/attachment.sig>