open ports for utorrent using iptables n close smpt to that ports

shtorrent00 · 09-29-2008, 02:21 PM

hello n thanks for keeping this forum alive.

I know how to open ports for utorrent using iptables, the
problem is that I want to close smtp conections to that port.
can that be done ?
thanks in advanced

niels.horn · 09-30-2008, 11:57 AM

Your question is not clear to me...
Are you receiving smtp packets on the port you configured for utorrent?

In general you can drop smtp packets filtering the standard smtp port like this:

Code:

iptables -A <YOURCHAIN> -p TCP --dport smtp -j DROP

but if you are using the standard smtp port for utorrent, this will drop all packets.

There are some excellent HOW-TOs at www.netfilter.org

shtorrent00 · 09-30-2008, 03:34 PM

Quote:

Originally Posted by niels.horn

Your question is not clear to me...
Are you receiving smtp packets on the port you configured for utorrent?

In general you can drop smtp packets filtering the standard smtp port like this:

Code:

iptables -A <YOURCHAIN> -p TCP --dport smtp -j DROP

but if you are using the standard smtp port for utorrent, this will drop all packets.

There are some excellent HOW-TOs at www.netfilter.org

thank you for your reply,

I want to open a port to use utorrent, but I dont want other trafic through that port except utorret's.
thanks again